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• How can I get DVDs playing after a Vista to XP change?

  - by Liath

  I replaced my vista install on a Dell Inspiron 1525 with XP and have managed to get most things up and running again however I'm having trouble with playing DVDs. When I try and play a DVD I get the following message: Windows Media Player cannot play this DVD because there is a problem with digital copy protection between your DVD drive, decoder, and video card. Try installing an updated driver for your video card. I have ensured that my drive is configured to play Region 2 discs (I'm in the UK), I've installed the most up to date XP codec pack which makes me think it's a driver issue. In device manager I have got my DVD drivers up to date however under "Other Devices" I'm missing several which sound key: Audio Device on High Definition Audio Bus Modem Device on High Definition Audio Bus Video Controller Video Controller (VGA Compatible) However I've installed all the relevant drivers I can find on the Dell website. The drive itself is working - I've run software from the drive. I'm afraid I am far from a sys-admin so I'm struggling on this one. How can I get my DVDs playing again?

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• Install Peppermint OS three on Asus EeePC

  - by Kithoth

  I just had a new Asus EeePC R051CX. Out of the box, the installed OS is Ubuntu 12.04 LTS, but I am trying to install Peppermint OS three (as single boot). Problem. Once on live CD (well, live USB stick...), I'm in trouble in both following situations: Try Peppermint OS Live In this case, the first thing I get is a message reading The system is running in low-graphics mode Your screen, graphics card, and input device settings could not be detected correctly. You will need to configure these yourself. I can solely press "return" to accept, then I have a list of 4 options to answer the question "What would you like to do?". But I simply can't do anything at this moment, except switching to console mode or rebooting (keyboard / mouse controls don't allow me to do anything else). Install Peppermint OS Something I really don't understand... it launches the Ubuntu Recovery Media (which was already installed when I received the device)! Also, it says in the bottom ERROR: This recovery media only functions on Ubuntu systems. All I can do is quit (that is, reboot). One last important thing that comes to my mind: this stick worked just fine on the other computers I've tried it on. I really hope someone could bring me the light, a friend of mine told me how cool this OS is for EeePCs. Don't want to give up! Thanks. Edit I finally could install Peppermint, but not by understanding why I couldn't do it the logical way. Instead, I reinstalled Ubuntu myself (erasing the factory one). Then, I could simply boot on my live USB and perform a fresh install of Peppermint. So, I still don't know how and why the mentioned problem occurred.

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• Google Chrome on Linux not using ALSA for sound

  - by DarkMoon

  On my laptop, I've got an .asoundrc file that outputs sound to my USB headset. This works fine for SMplayer and Firefox. However, Google Chrome (at least, Flash-based and HTML5-based videos and HTML5-based audio in Chrome) plays through the laptop speakers instead. I've tried running Chrome from a command-line, hoping there would be some helpful output, but no such luck. I've tried looking through Google for whether Chrome even uses ALSA, or if it uses something else, but I have been unsuccessful in this. This question seems to be the same issue, but no suggestion was made. Anyone have any ideas? I'm running Gentoo with a 3.10.17 kernel, 1.0.27 ALSA utils, 2.6.5 FVWM, and 36.0.1985.143 Chrome. If you need more info, please let me know. EDIT: I've configured the USB headset as the default ALSA device. Volume levels for both headset and onboard are set and un-muted using alsamixer. My .asoundrc file is as follows. ctl.!default { type hw card Headset } pcm.dmixer { type dmix ipc_key 1024 slave { pcm { type hw card Headset } period_size 1024 buffer_size 4096 } bindings { 0 0 1 1 } } pcm.!default { type plug slave.pcm dmixer }

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• Windows 7, Black screen with cursor, impossible to logon

  - by PJC

  First - I have gone through as many possible solutions I've found here and elsewhere. [Edit - to describe the issue in more detail, the PC appears to boot correctly, but instead of the logon screen, I have been getting a black screen WITH the pointer cursor, and it responds correctly to the mouse. Pressing CTL-ALT-DEL brings up the logon screen's background, but with no logon area nor any other content. This screen was at the full resolution before I uninstalled the graphics driver in safe-mode.] I also just ran a full up-to-date AVG scan from boot media. [Edit - the AVG scan, which was updated to today's virus signatures, found no issues at all.] So - steps I've tried: Safe Boot, Restore from before the issue - done, no help. Uninstall the graphics driver - done, now i have a 1024x768 fallback screen, still no way in. sfc /scannow - only doable from Safe boot obviously, but no change. [Edit - booting from restore media, performing a startup repair and...]Restore further back - restored to 2 days ago, and I'd had many reboots since then with no problem. Enable autologin to try to get beyond the login screen - done, doesn't work. It seems the best advice is complete reinstall, but I really don't want to do that because it'll take 3-4 days to add all the apps I use. Some key points to note - in both states - before and after removing the video driver, I always had a mouse cursor on the screen. CTL-ALT-DEL flashes up the login background, but no login info. I can (and often do) reinstall from scratch, but was at a fairly stable state before this, and would prefer not to. -Paul

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• Information on the BMPP File Extension/Format

  - by Angel Brighteyes

  I am looking for information on the file type BMPp. Namely I need an application that can create this file type, preferably open source or free. Wikipedia says for BMP File Format that 'BMPp' is a "type code", which is the "mechanism used by pre-OSX Macs ... to denote a files format..." (Look in the little info-box of general information under "Type code"). Continuing my research, I found an old 2009 archived mailing list "Re: Incorrect png file type 'PNG' that talks about something related to another problem a developer is having. In the response he talks about there being variant file types, and lists BMPp as being linked to an old version of Graphics Converter. The company Lemkesoft sells Graphics Converter, which I am not willing to purchase. I can't imagine that the only program in existence to make a BMPp file is that program. There has got to be another way to make that file type, other than creating a BMP file and just renaming it to BMPp (unless of course it is really that easy)? This is the first time I've run into this file format, and it took a bit on Google, Bing, and Wikipedia to find the information that I've posted here. Any further help would be appreciated.

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• Server periodically freezing - Help Stabilizing

  - by JonDog

  We run an asp.net/sql server data collection website with a hand full of clients dumping data in and running reports. We moved to a new server (specs below) and have had issues with it freezing and having to reboot it a dozen times over the pass six months. The hosting company has mentioned possible causes (listed below) but cant give a definite answer on what is going wrong. They have offered to reconfigure how ever I like. We have benefited from having a much faster system and really dont want to get rid of the ssd's unless they are the issue. Two possible setup changes that I've talked with them about are also listed below. Any suggestions on what maybe causing the freezing issue as well as suggestion on a new setup would be great. My main questions are: Do SSD generally have problems running the OS & SQL Server on the same RAID Array? and Are the new SSD's still unrefined enough to be running in a production environment? Thanks Current: Xeon Quad Core E3-1270 3.40 Ghz 16 GB DDR3-1333 ECC SDRAM First Hard Drive: 120GB Intel SSD Second Hard Drive: 120GB Intel SSD Third Hard Drive: 120GB Intel SSD Fourth Hard Drive: 120GB Intel SSD SAS 4 Port RAID Card Windows 2012 Standard Edition - 64 Bit MSSQL 2008 Web Edition Possible Causes: Running Sql Server & OS on same RAID Array OS Software Issues Using SSD's CPU Underpowered Not enough RAM Option 1 2x Xeon Quad Core E5-2603 1.80 GHz 16 GB DDR3-1333 ECC SDRAM 1 x 240GB Intel SSD - OS 3 x 1 TB SATA HDD (7200 RPM) - SQL Server SATA 4 Port RAID Card Windows 2012 Standard Edition - 64 Bit Option 2 Dell PowerEdge E3-1270v2 3.5GHz 4 Cores 16 GB DDR3-1600 UDIMM 4 x 128 GB Samsung 840 Pro SSD Add-in H200 (SAS/SATA Controller), 4 Hard Drives - RAID 10 Windows 2012 Standard Edition - 64 Bit

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• Non-volatile cache RAID controllers: what kind of protection is there against NVCACHE failure?

  - by astrostl

  The battery back-up (BBU) model: admin enables write-back cache with BBU writes are cached to the RAID controller's RAM (major performance benefit) the battery saves uncommitted and cached data in the event of a power loss (reliability) If I lose power and come back within a day or so, my data should be both complete and uncorrupted. The downside to this is that, if the battery is dead or low, OR EVEN IF IT IS IN A RELEARN CYCLE (drain/charge loops to ensure the battery's health), the controller reverts to write-through mode and performance will suffer. What's more, the relearn cycles are usually automated on a schedule which may or may not happen in the middle of big traffic. So, that has to be manually disabled and manually scheduled for off-hours if it's a concern. Annoying either way. NV caches have capacitors with a sufficient charge to commit any uncommitted-to-disk data to flash. Not only is that more survivable in longer loss situations, but you don't have to concern yourself with battery death, wear-out, or relearning. All of that sounds great to me. What doesn't sound great to me is the prospect of that flash module having an issue, though. What if it's completely hosed? What if it's only partially hosed? A bit corrupted at the edges? Relearn cycles can tell when something like a simple battery is failing, but is there a similar process to verify that the flash is functional? I'm just far more trusting of a battery, warts and all. I know the card's RAM can fail, the card itself can fail - that's common territory, though. In case you didn't guess, yeah, I've experienced a shocking-to-me amount of flash/SSD/etc. failure :)

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• Python 2.7 and Ubuntu 10.10: X11 fails

  - by c.a.p.

  Against every recommendation I have apt-get remove python in Ubuntu 10.10 (build 2.6.24-29-server x86_64) and apt-get install python2.7 Some built-in software with python2.6 dependencies (like firefox, other minor stuff) was fixed just by apt-get reinstalling or reinstalling from source and the system was stable for one day until I rebooted. Upon booting I got the message "ubuntu is running in low-graphics mode" I have an NVIDIA Quadro NVS 295 256 running on a HP Z600 Workstation so I sudoed: apt-get --purged nvidia* apt-get --purged xserver apt-get install linux-headers-generic apt-get install nvidia-* apt-get install xserver-xorg dpkg-reconfigure xserver-xorg nvidia-xconfig upon rebooting i get the same "ubuntu is running in low-graphics mode" if I decide to tell the boot menu to restart X, the Ubuntu 10.10 "load screen" shows up and does not do anything for hours. If I "X" the screen remains black for hours; ctrl-c shows that /etc/X11/xorg.conf did not produce any errors just a warning "Type "ONE_LEVEL"...". /var/log/Xorg.0.log issues the following warnings (no errors) (WW) AllowEmptyInput is on (WW) NVIDIA(0): UBB is incompatible If I "startX" I get /usr/bin/python: can't find '__main__.py"' in '/usr/share/command-not-found' Before re-installing xserver-xorg however "startX" ran, just by changing the resolution of the tty1 console. Any hints?

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• Windows-7 Ultimate 64 bit wont connect to my wired/wireless networks

  - by A302

  Windows 7 Ultimate 64 bit. Everything was working fine & then just stopped working. The nic card Realtek PCIe GBE Family Controller is enabled but does not connect to my router (cables & router ports are good). Wireless Atheros AR5007EG is enabled but the connection is limited (encryption type / key have been verified). A laptop running XP can connect both wired / wireless. SSID is not being broadcast, connect to network if it is not broadcasting is checked. Have checked services.msc for Bonjour & did not see it listed. Network & sharing center does not list any active networks. Device manager lists both devices as functioning properly. Router configuration has not been changed. Virus scan has not found anything. I would like to fix this rather than using Acronis to do a system restore. Thanks in advance for any advice offered in solving this. 26 Jan, the nic card & wireless are working using PCLinux OS Live CD. It appears that the problem is Windows 7 related.

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• How can I get DVDs playing after a Vista to XP change? [closed]

  - by Liath

  I replaced my vista install on a Dell Inspiron 1525 with XP and have managed to get most things up and running again however I'm having trouble with playing DVDs. When I try and play a DVD I get the following message: Windows Media Player cannot play this DVD because there is a problem with digital copy protection between your DVD drive, decoder, and video card. Try installing an updated driver for your video card. I have ensured that my drive is configured to play Region 2 discs (I'm in the UK), I've installed the most up to date XP codec pack which makes me think it's a driver issue. In device manager I have got my DVD drivers up to date however under "Other Devices" I'm missing several which sound key: Audio Device on High Definition Audio Bus Modem Device on High Definition Audio Bus Video Controller Video Controller (VGA Compatible) However I've installed all the relevant drivers I can find on the Dell website. The drive itself is working - I've run software from the drive. I'm afraid I am far from a sys-admin so I'm struggling on this one. How can I get my DVDs playing again?

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• Verizon overbilling me ?

  - by bek

  I have verizon air card for my internet. Which is called vz manager. I have had it for about a year. Keeping within my usage allowance the whole time until 3 months ago, when my bill came in my 5,000 g allowance was ran to 18,000. It has continued to do so through the last 3 months. My usage reset itself yesterday for the new month. I got on google for about 5 minutes and chatted for about an hour yesterday online. Mind you that I have never done anything any different then i do everyday. I do not download music or watch videos on my computer, nothing like that. Well since last night a 8 pm my usage sayd 1109.525 gb. ALREADY! For being on the internet for an hour with no downloads. What could be causing this, please thrown me some ideas. Verizon is checking on the problem, but that usually doesnt get me the answer i want. Can someone be hacking my card and using internet through it, has told me that that is not possible, however I think with the internet anytihng is possible.

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• How do I disable DirectDraw and Direct3D acceleration on Windows 8? [closed]

  - by Favourite Chigozie Onwuemene

  Some old games that i would really like to play run slowly on some graphic drivers when direct3d acceleration is enabled. I have tried many suggestions but none seems to work. The only thing i have not tried is disabling direct3d acceleration. Is it possible to disable DirectDraw and Direct3D acceleration on my Windows 8 pc? There are certain bad versions of GeForce drivers that cause this problem. This is a problem in the drivers themselves and is unfortunately completely outside our control. The recommended way to fix this problem is to update your graphics card drivers (go to NVIDIA's web site for this). Alternatively, there is a workaround that alleviates or solves the slowdown problem altogether. Try this: Right-click on your desktop and select "Properties". Go to the "Settings" tab and click on "Advanced...". Click on the "Troubleshooting" tab and move the slider to the left until it says that all DirectDraw and Direct3D accelerations have been disabled (around the middle of the range). Finally, click on "OK". Note that this workaround might cause other games on your computer to slow down, so you may have to switch back and forth between settings, but it's certainly worth a try if you can't obtain an updated graphics driver. -source: interactionstudios

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• VzAccess Manager.

  - by bek

  I have verizon air card for my internet. Which is called vz manager. I have had it for about a year. Keeping within my usage allowance the whole time until 3 months ago, when my bill came in my 5,000 g allowance was ran to 18,000. It has continued to do so through the last 3 months. My usage reset itself yesterday for the new month. I got on google for about 5 minutes and chatted for about an hour yesterday online. Mind you that I have never done anything any different then i do everyday. I do not download music or watch videos on my computer, nothing like that. Well since last night a 8 pm my usage sayd 1109.525 gb. ALREADY! For being on the internet for an hour with no downloads. What could be causing this, please thrown me some ideas. Verizon is checking on the problem, but that usually doesnt get me the answer i want. Can someone be hacking my card and using internet through it, has told me that that is not possible, however I think with the internet anytihng is possible.

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• Duplicate monitor on highest resolution in Windows 7

  - by AlexanderMP

  I have a monitor with a native resolution of 2560x1440, connected through display port. I also have an AV Receiver connected to the video card via HDMI, to have surround sound in games. All using Radeon HD 5670 (will upgrade soon to HD 7850). The problem is that my computer detects the receiver as a separate monitor, with the highest available resolution of 1920x1080. I have 3 options: Disconnect the second display. But then the sound (digital audio output through video card) also disappears. Duplicate displays. But then my primary monitor resolution is reduced to a maximum of just 1920x1080, that being the maximum of the second monitor. Extend desktop. This is the solution I picked so far, it being the least evil. The problems I face in this situations are 2: I have a blank part of the desktop where I sometimes lose my mouse pointer, so I made the extension small, 640x480, and placed it in a corner; when I turn off the main display, all windows resize to 640x480. In Kubuntu I had the option to duplicate the displays, while keeping the higher resolution. Which was great. I tried overriding using the Win7 netbook hack, but it's not available on non-netbooks. Is there a similar solution for this problem in Windows 7?

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• Does VLC Player work well on Windows 7 64-bit?

  - by ????

  I tried VLC Player on Windows 7 64-bit version and the playback was fine, but when the video is maximized the image is very pixelated. I tried this on a Radeon HD 2600 XT graphics card as well as a computer with an Intel graphics chipset and both have the same result. If I use VLC Player on Windows 7 32-bit instead of 64-bit, there is no pixelation. Is this a known problem or is there any method to fix it on Windows 7 64-bit? Update: there isn't a 32-bit vs 64-bit version of VLC player, is there? (unlike 7-Zip) I also tried GOM Player and it doesn't have the problem on Windows 7 64-bit. Update: Nov 4, 2009 VLC displays an update notice: VLC 1.0.3 is a minor release fixing many bugs, especially for Windows Vista and 7, but it also introduces 2 new modes for deinterlacing, and a new udev module. Major fixes are about WMA Pro support, Dolby tracks in 4.0, v4l/v4l2 and atsc and a crash in mjpeg demuxer. Update of translations are also part of this release.

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• Randomly unusable wireless connection. Oddest issue ever...

  - by Hallucynogenyc

  I have two desktop computers a laptop and a smartphone. All of them connect perfectly to my router (WRT54GL with Tomato firmware), but randomly (once a week maybe) something odd happens: For over an hour or so one of the desktop computers (Windows 7 Pro x64) will just refuse to connect properly to the router. Only that computer and only to that network. I can connect all the other machines to the router perfectly and I can connect properly to other networks with that machine. What I mean by "not being able to connect properly" I mean that the OS will just tell me "not able to connect to.." or that it will connect but then say that it has no Internet access or it connects but will then take minutes to load any website, even the router web interface. I've tried to change from WPA2 to WEP and back to WPA2, I've tried different network adapters (one internal PCI card and one USB external card), removing networks from Windows and adding again... without making any difference. It works for some days but at the end, it ends happening at some time. I just have no clue on what the hell could be going on here. I first thought it was the network adapter, then the router, then Windows... Thanks in advance

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• Anyone have ideas for solving the "n items remaining" problem on Internet Explorer?

  - by CMPalmer

  In my ASP.Net app, which is javascript and jQuery heavy, but also uses master pages and .Net Ajax pieces, I am consistently seeing on the status bar of IE 6 (and occasionally IE 7) the message "2 items remaining" or "15 items remaining" followed by "loading somegraphicsfile.png|gif ." This message never goes away and may or may not prevent some page functionality from running (it certainly seems to bog down, but I'm not positive). I can cause this to happen 99% of the time by just refreshing an .aspx age, but the number of items and, sometimes, the file it mentions varies. Usually it is 2, 3, 12, 13, or 15. I've Googled for answers and there are several suggestions or explanations. Some of them haven't worked for us, and others aren't practical for us to implement or try. Here are some of the ideas/theories: IE isn't caching images right, so it repeatedly asks for the same image if the image is repeated on the page and the server assumes that it should be cached locally since it's already served it in that page context. IE displays the images correctly, but sits and waits for a server response that never comes. Typically the file it says it is waiting on is repeated on the page. The page is using PNG graphics with transparency. Indeed it is, but they are jQuery-UI Themeroller generated graphics which, according to the jQuery-UI folks, are IE safe. The jQuery-UI components are the only things using PNGs. All of our PNG references are in CSS, if that helps. I've changed some of the graphics from PNG to GIF, but it is just as likely to say it's waiting for somegraphicsfile.png as it is for somegraphicsfile.gif Images are being specified in CSS and/or JavaScript but are on things that aren't currently being displayed (display: none items for example). This may be true, but if it is, then I would think preloading images would work, but so far, adding a preloader doesn't do any good. IIS's caching policy is confusing the browser. If this is true, it is only Microsoft server SW having problems with Microsoft's browser (which doesn't surprise me at all). Unfortunately, I don't have much control over the IIS configuration that will be hosting the app. Has anyone seen this and found a way to combat it? Particularly on ASP.Net apps with jQuery and jQuery-UI? UPDATE One other data point: on at least one of the pages, just commenting out the jQuery-UI Datepicker component setup causes the problem to go away, but I don't think (or at least I'm not sure) if that fixes all of the pages. If it does "fix" them, I'll have to swap out plug-ins because that functionality needs to be there. There doesn't seem to be any open issues against jQuery-UI on IE6/7 currently... UPDATE 2 I checked the IIS settings and "enable content expiration" was not set on any of my folders. Unchecking that setting was a common suggestion for fixing this problem. I have another, simpler, page that I can consistently create the error on. I'm using the jQuery-UI 1.6rc6 file (although I've also tried jQuery-UI 1.7.1 with the same results). The problem only occurs when I refresh the page that contains the jQuery-UI Datepicker. If I comment out the Datepicker setup, the problem goes away. Here are a few things I notice when I do this: This page always says "(1 item remaining) Downloading picture http:///images/Calendar_scheduleHS.gif", but only when reloading. When I look at HTTP logging, I see that it requests that image from the server every time it is dynamically turned on, without regard to caching. All of the requests for that graphic are complete and return the graphic correctly. None are marked code 200 or 304 (indicating that the server is telling IE to use the cached version). Why it says waiting on that graphic when all of the requests have completed I have no idea. There is a single other graphic on the page (one of the UI PNG files) that has a code 304 (Not Modified). On another page where I managed to log HTTP traffic with "2 items remaining", two different graphic files (both UI PNGs) had a 304 as well (but neither was the one listed as "Downloading". This error is not innocuous - the page is not fully responsive. For example, if I click on one of the buttons which should execute a client-side action, the page refreshes. Going away from the page and coming back does not produce the error. I have moved the script and script references to the bottom of the content and this doesn't affect this problem. The script is still running in the $(document).ready() though (it's too hairy to divide out unless I absolutely have to). FINAL UPDATE AND ANSWER There were a lot of good answers and suggestions below, but none of them were exactly our problem. The closest one (and the one that led me to the solution) was the one about long running JavaScript, so I awarded the bounty there (I guess I could have answered it myself, but I'd rather reward info that leads to solutions). Here was our solution: We had multiple jQueryUI datepickers that were created on the $(document).ready event in script included from the ASP.Net master page. On this client page, a local script's $(document).ready event had script that destroyed the datepickers under certain conditions. We had to use "destroy" because the previous version of datepicker had a problem with "disable". When we upgraded to the latest version of jQuery UI (1.7.1) and replaced the "destroy"s with "disable"s for the datepickers, the problem went away (or mostly went away - if you do things too fast while the page is loading, it is still possible to get the "n items remaining" status). My theory as to what was happening goes like this: The page content loads and has 12 or so text boxes with the datepicker class. The master page script creates datepickers on those text boxes. IE queues up requests for each calendar graphic independently because IE doesn't know how to properly cache dynamic image requests. Before the requests get processed, the client area script destroys those datepickers so the graphics are no longer needed. IE is left with some number of orphaned requests that it doesn't know what to do with.

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• Binary data instead of actual image in C#

  - by acadia

  Hello, I am using the below mentioned library to create a barcode which is storing in a specified location as shown below: My question is, is there a way instead of saving it to a png file I get byte data? thanks Code39 code = new Code39("10090"); code.Paint().Save("c:/NewBARCODE.png", ImageFormat.Png); using System; using System.Collections.Generic; using System.Drawing; using System.Drawing.Imaging; using System.Diagnostics; namespace BarCode39 { public class Code39Settings { private int height = 60; public int BarCodeHeight { get { return height; } set { height = value; } } private bool drawText = true; public bool DrawText { get { return drawText; } set { drawText = value; } } private int leftMargin = 10; public int LeftMargin { get { return leftMargin; } set { leftMargin = value; } } private int rightMargin = 10; public int RightMargin { get { return rightMargin; } set { rightMargin = value; } } private int topMargin = 10; public int TopMargin { get { return topMargin; } set { topMargin = value; } } private int bottomMargin = 10; public int BottomMargin { get { return bottomMargin; } set { bottomMargin = value; } } private int interCharacterGap = 2; public int InterCharacterGap { get { return interCharacterGap; } set { interCharacterGap = value; } } private int wideWidth = 2; public int WideWidth { get { return wideWidth; } set { wideWidth = value; } } private int narrowWidth = 1; public int NarrowWidth { get { return narrowWidth; } set { narrowWidth = value; } } private Font font = new Font(FontFamily.GenericSansSerif, 12); public Font Font { get { return font; } set { font = value; } } private int codeToTextGapHeight = 10; public int BarCodeToTextGapHeight { get { return codeToTextGapHeight; } set { codeToTextGapHeight = value; } } } public class Code39 { #region Static initialization static Dictionary<char, Pattern> codes; static Code39() { object[][] chars = new object[][] { new object[] {'0', "n n n w w n w n n"}, new object[] {'1', "w n n w n n n n w"}, new object[] {'2', "n n w w n n n n w"}, new object[] {'3', "w n w w n n n n n"}, new object[] {'4', "n n n w w n n n w"}, new object[] {'5', "w n n w w n n n n"}, new object[] {'6', "n n w w w n n n n"}, new object[] {'7', "n n n w n n w n w"}, new object[] {'8', "w n n w n n w n n"}, new object[] {'9', "n n w w n n w n n"}, new object[] {'A', "w n n n n w n n w"}, new object[] {'B', "n n w n n w n n w"}, new object[] {'C', "w n w n n w n n n"}, new object[] {'D', "n n n n w w n n w"}, new object[] {'E', "w n n n w w n n n"}, new object[] {'F', "n n w n w w n n n"}, new object[] {'G', "n n n n n w w n w"}, new object[] {'H', "w n n n n w w n n"}, new object[] {'I', "n n w n n w w n n"}, new object[] {'J', "n n n n w w w n n"}, new object[] {'K', "w n n n n n n w w"}, new object[] {'L', "n n w n n n n w w"}, new object[] {'M', "w n w n n n n w n"}, new object[] {'N', "n n n n w n n w w"}, new object[] {'O', "w n n n w n n w n"}, new object[] {'P', "n n w n w n n w n"}, new object[] {'Q', "n n n n n n w w w"}, new object[] {'R', "w n n n n n w w n"}, new object[] {'S', "n n w n n n w w n"}, new object[] {'T', "n n n n w n w w n"}, new object[] {'U', "w w n n n n n n w"}, new object[] {'V', "n w w n n n n n w"}, new object[] {'W', "w w w n n n n n n"}, new object[] {'X', "n w n n w n n n w"}, new object[] {'Y', "w w n n w n n n n"}, new object[] {'Z', "n w w n w n n n n"}, new object[] {'-', "n w n n n n w n w"}, new object[] {'.', "w w n n n n w n n"}, new object[] {' ', "n w w n n n w n n"}, new object[] {'*', "n w n n w n w n n"}, new object[] {'$', "n w n w n w n n n"}, new object[] {'/', "n w n w n n n w n"}, new object[] {'+', "n w n n n w n w n"}, new object[] {'%', "n n n w n w n w n"} }; codes = new Dictionary<char, Pattern>(); foreach (object[] c in chars) codes.Add((char)c[0], Pattern.Parse((string)c[1])); } #endregion private static Pen pen = new Pen(Color.Black); private static Brush brush = Brushes.Black; private string code; private Code39Settings settings; public Code39(string code) : this(code, new Code39Settings()) { } public Code39(string code, Code39Settings settings) { foreach (char c in code) if (!codes.ContainsKey(c)) throw new ArgumentException("Invalid character encountered in specified code."); if (!code.StartsWith("*")) code = "*" + code; if (!code.EndsWith("*")) code = code + "*"; this.code = code; this.settings = settings; } public Bitmap Paint() { string code = this.code.Trim('*'); SizeF sizeCodeText = Graphics.FromImage(new Bitmap(1, 1)).MeasureString(code, settings.Font); int w = settings.LeftMargin + settings.RightMargin; foreach (char c in this.code) w += codes[c].GetWidth(settings) + settings.InterCharacterGap; w -= settings.InterCharacterGap; int h = settings.TopMargin + settings.BottomMargin + settings.BarCodeHeight; if (settings.DrawText) h += settings.BarCodeToTextGapHeight + (int)sizeCodeText.Height; Bitmap bmp = new Bitmap(w, h, PixelFormat.Format32bppArgb); Graphics g = Graphics.FromImage(bmp); int left = settings.LeftMargin; foreach (char c in this.code) left += codes[c].Paint(settings, g, left) + settings.InterCharacterGap; if (settings.DrawText) { int tX = settings.LeftMargin + (w - settings.LeftMargin - settings.RightMargin - (int)sizeCodeText.Width) / 2; if (tX < 0) tX = 0; int tY = settings.TopMargin + settings.BarCodeHeight + settings.BarCodeToTextGapHeight; g.DrawString(code, settings.Font, brush, tX, tY); } return bmp; } private class Pattern { private bool[] nw = new bool[9]; public static Pattern Parse(string s) { Debug.Assert(s != null); s = s.Replace(" ", "").ToLower(); Debug.Assert(s.Length == 9); Debug.Assert(s.Replace("n", "").Replace("w", "").Length == 0); Pattern p = new Pattern(); int i = 0; foreach (char c in s) p.nw[i++] = c == 'w'; return p; } public int GetWidth(Code39Settings settings) { int width = 0; for (int i = 0; i < 9; i++) width += (nw[i] ? settings.WideWidth : settings.NarrowWidth); return width; } public int Paint(Code39Settings settings, Graphics g, int left) { #if DEBUG Rectangle gray = new Rectangle(left, 0, GetWidth(settings), settings.BarCodeHeight + settings.TopMargin + settings.BottomMargin); g.FillRectangle(Brushes.Gray, gray); #endif int x = left; int w = 0; for (int i = 0; i < 9; i++) { int width = (nw[i] ? settings.WideWidth : settings.NarrowWidth); if (i % 2 == 0) { Rectangle r = new Rectangle(x, settings.TopMargin, width, settings.BarCodeHeight); g.FillRectangle(brush, r); } x += width; w += width; } return w; } } } }

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• java.lang.ArrayIndexOutOfBoundsException

  - by thefonso

  Here is the code. import java.applet.Applet; import java.awt.Button; import java.awt.Color; import java.awt.Graphics; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; public class GuessingGame extends Applet{ /** * */ private static final long serialVersionUID = 1L; private final int START_X = 20; private final int START_Y = 40; private final int ROWS = 4; private final int COLS = 4; private final int BOX_WIDTH = 20; private final int BOX_HEIGHT = 20; //this is used to keep track of boxes that have been matched. private boolean matchedBoxes[][]; //this is used to keep track of two boxes that have been clicked. private MaskableBox chosenBoxes[]; private MaskableBox boxes[][]; private Color boxColors[][]; private Button resetButton; public void init() { boxes = new MaskableBox[ROWS][COLS]; boxColors = new Color[ROWS][COLS]; resetButton = new Button("Reset Colors"); resetButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { randomizeColors(); buildBoxes(); repaint(); } }); add(resetButton); //separate building colors so we can add a button later //to re-randomize them. randomizeColors(); buildBoxes(); } public void paint(Graphics g) { for (int row =0; row < boxes.length; row ++) { for (int col = 0; col < boxes[row].length; col++) { if(boxes[row][col].isClicked()) { //boxes[row][col].setMaskColor(Color.black); //boxes[row][col].setMask(!boxes[row][col].isMask()); //boxes[row][col].setClicked(false); //} if (!matchedBoxes[row][col]) { gameLogic(boxes[row][col]); //boxes[row][col].draw(g); } } } } //loop through the boxes and draw them. for (int row = 0; row < boxes.length; row++) { for (int col = 0; col < boxes[row].length; col++) { boxes[row][col].draw(g); } } } public void gameLogic(MaskableBox box) { if ((chosenBoxes[0] != null)&&(chosenBoxes[1] != null)) { if(chosenBoxes[0].getBackColor() == chosenBoxes[1].getBackColor()) { for (int i=0; 0 <= chosenBoxes.length; ++i ) { for(int row = 0; row < boxes.length; row++) { for(int col = 0; col < boxes[row].length; col++) { if( boxes[row][col] == chosenBoxes[i] ) { System.out.println("boxes [row][col] == chosenBoxes[] at index: " + i ); matchedBoxes[row][col] = true; break; } } } } }else { chosenBoxes[0].setMask(true); chosenBoxes[1].setMask(true); } chosenBoxes = new MaskableBox[2]; }else { if (chosenBoxes[0] == null) { chosenBoxes[0] = box; chosenBoxes[0].setMask(false); return; }else{ if (chosenBoxes[1] == null) { chosenBoxes[1] = box; chosenBoxes[1].setMask(false); } } } } private void removeMouseListeners() { for(int row = 0; row < boxes.length; row ++) { for(int col = 0; col < boxes[row].length; col++) { removeMouseListener(boxes[row][col]); } } } private void buildBoxes() { // need to clear any chosen boxes when building new array. chosenBoxes = new MaskableBox[2]; // create a new matchedBoxes array matchedBoxes = new boolean [ROWS][COLS]; removeMouseListeners(); for(int row = 0; row < boxes.length; row++) { for(int col = 0; col < boxes[row].length; col++) { boxes[row][col] = new MaskableBox(START_X + col * BOX_WIDTH, START_Y + row * BOX_HEIGHT, BOX_WIDTH, BOX_HEIGHT, Color.gray, boxColors[row][col], true, true, this); addMouseListener(boxes[row][col]); } } } private void randomizeColors() { int[] chosenColors = {0,0,0,0,0,0,0,0}; Color[] availableColors = {Color.red, Color.blue, Color.green, Color.yellow, Color.cyan, Color.magenta, Color.pink, Color.orange }; for(int row = 0; row < boxes.length; row++) { for (int col = 0; col < boxes[row].length; col++) { for (;;) { int rnd = (int) (Math.random() * 8); if (chosenColors[rnd]< 2) { chosenColors[rnd]++; boxColors[row][col] = availableColors[rnd]; break; } } } } } } here is the second batch of code containing maskablebox import java.awt.Color; import java.awt.Container; import java.awt.Graphics; public class MaskableBox extends ClickableBox { private boolean mask; private Color maskColor; Container parent; public MaskableBox(int x, int y, int width, int height, Color borderColor, Color backColor, boolean drawBorder, boolean mask, Container parent ) { super(x, y, width, height, borderColor, backColor, drawBorder, parent); this.parent = parent; this.mask = mask; } public void draw(Graphics g) { if(mask=false) { super.draw(g); // setOldColor(g.getColor()); // g.setColor(maskColor); // g.fillRect(getX(),getY(),getWidth(), getHeight()); // if(isDrawBorder()) { // g.setColor(getBorderColor()); // g.drawRect(getX(),getY(),getWidth(),getHeight()); // } // g.setColor(getOldColor()); }else { if(mask=true) { //super.draw(g); setOldColor(g.getColor()); g.setColor(maskColor); g.fillRect(getX(),getY(),getWidth(), getHeight()); if(isDrawBorder()) { g.setColor(getBorderColor()); g.drawRect(getX(),getY(),getWidth(),getHeight()); } g.setColor(getOldColor()); } } } public boolean isMask() { return mask; } public void setMask(boolean mask) { this.mask = mask; } public Color getMaskColor() { return maskColor; } public void setMaskColor(Color maskColor) { this.maskColor = maskColor; } } I keep getting these error messages. I'm going nuts trying to figure this out. can anyone tell me what I'm doing wrong? boxes [row][col] == chosenBoxes[] at index: 0 boxes [row][col] == chosenBoxes[] at index: 1 Exception in thread "AWT-EventQueue-1" java.lang.ArrayIndexOutOfBoundsException: 2 at GuessingGame.gameLogic(GuessingGame.java:77) at GuessingGame.paint(GuessingGame.java:55) at java.awt.Container.update(Container.java:1801) at sun.awt.RepaintArea.updateComponent(RepaintArea.java:239) at sun.awt.RepaintArea.paint(RepaintArea.java:216) at sun.awt.windows.WComponentPeer.handleEvent(WComponentPeer.java:306) at java.awt.Component.dispatchEventImpl(Component.java:4706) at java.awt.Container.dispatchEventImpl(Container.java:2099) at java.awt.Component.dispatchEvent(Component.java:4460) at java.awt.EventQueue.dispatchEvent(EventQueue.java:599) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

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• Font serialization in vb.net

  - by jovany

  Hello all, as the title says , I need to serialize my font. I have tried the following approach unfortunately to no avail. This is what I have and what happens; I have a drawing application and certain variables and properties need to be serialized. (So , Xml.Serialization has been used.) Now this has already been done in a huge portion and I've created some other attributes which needed to be serialized and it works. There is one base class and classes such as drawablestar, drawableeclipse ,etc. all inherit from this class. As does my drawabletextboxclass. The base class is Serializable as can be seen in the sample below. It looks like this... Imports System.Xml.Serialization <Serializable()> _ Public MustInherit Class Drawable ' Drawing characteristics. 'Font characteristics <XmlIgnore()> Public FontFamily As String <XmlIgnore()> Public FontSize As Integer <XmlIgnore()> Public FontType As Integer <XmlIgnore()> Public ForeColor As Color <XmlIgnore()> Public FillColor As Color <XmlAttributeAttribute()> Public LineWidth As Integer = 0 <XmlAttributeAttribute()> Public X1 As Integer <XmlAttributeAttribute()> Public Y1 As Integer <XmlAttributeAttribute()> Public X2 As Integer <XmlAttributeAttribute()> Public Y2 As Integer ' attributes for size textbox <XmlAttributeAttribute()> Public widthLabel As Integer <XmlAttributeAttribute()> Public heightLabel As Integer '<XmlTextAttribute()> Public FontFamily As String '<XmlAttributeAttribute()> Public FontSize As Integer 'this should actually not be here.. <XmlAttributeAttribute()> Public s_InsertLabel As String ' Indicates whether we should draw as selected. <XmlIgnore()> Public IsSelected As Boolean = False ' Constructors. Public Sub New() ForeColor = Color.Black FillColor = Color.White 'FontFamily = "Impact" 'FontSize = 12 End Sub Friend WriteOnly Property _Label() As String Set(ByVal Value As String) s_InsertLabel = Value End Set End Property Public Sub New(ByVal fore_color As Color, ByVal fill_color As Color, Optional ByVal line_width As Integer = 0) LineWidth = line_width ForeColor = fore_color FillColor = fill_color ' FontFamily = Font_Family ' FontSize = Font_Size End Sub ' Property procedures to serialize and ' deserialize ForeColor and FillColor. <XmlAttributeAttribute("ForeColor")> _ Public Property ForeColorArgb() As Integer Get Return ForeColor.ToArgb() End Get Set(ByVal Value As Integer) ForeColor = Color.FromArgb(Value) End Set End Property <XmlAttributeAttribute("BackColor")> _ Public Property FillColorArgb() As Integer Get Return FillColor.ToArgb() End Get Set(ByVal Value As Integer) FillColor = Color.FromArgb(Value) End Set End Property 'Property procedures to serialize and 'deserialize Font <XmlAttributeAttribute("InsertLabel")> _ Public Property InsertLabel_() As String Get Return s_InsertLabel End Get Set(ByVal value As String) s_InsertLabel = value End Set End Property <XmlAttributeAttribute("FontSize")> _ Public Property FontSizeGet() As Integer Get Return FontSize End Get Set(ByVal value As Integer) FontSize = value End Set End Property <XmlAttributeAttribute("FontFamily")> _ Public Property FontFamilyGet() As String Get Return FontFamily End Get Set(ByVal value As String) FontFamily = value End Set End Property <XmlAttributeAttribute("FontType")> _ Public Property FontType_() As Integer Get Return FontType End Get Set(ByVal value As Integer) FontType = value End Set End Property #Region "Methods to override" Public MustOverride Sub Draw(ByVal gr As Graphics) ' Return the object's bounding rectangle. Public MustOverride Function GetBounds() As Rectangle ...... ........ ..... End Class [/code] My textbox class which looks like this , is the one that needs to save it's font. Imports System.Math Imports System.Xml.Serialization Imports System.Windows.Forms <Serializable()> _ Public Class DrawableTextBox Inherits Drawable Private i_StringLength As Integer Private i_StringWidth As Integer Private drawFont As Font = New Font(FontFamily, 12, FontStyle.Regular) Private brsTextColor As Brush = Brushes.Black Private s_insertLabelTextbox As String = "label" ' Constructors. Public Sub New() End Sub Public Sub New(ByVal objCanvas As PictureBox, ByVal fore_color As Color, ByVal fill_color As Color, Optional ByVal line_width As Integer = 0, Optional ByVal new_x1 As Integer = 0, Optional ByVal new_y1 As Integer = 0, Optional ByVal new_x2 As Integer = 1, Optional ByVal new_y2 As Integer = 1) MyBase.New(fore_color, fill_color, line_width) Dim objGraphics As Graphics = objCanvas.CreateGraphics() X1 = new_x1 Y1 = new_y1 'Only rectangles ,circles and stars can resize for now b_Movement b_Movement = True Dim frm As New frmTextbox frm.MyFont = drawFont frm.ShowDialog() If frm.DialogResult = DialogResult.OK Then FontFamily = frm.MyFont.FontFamily.Name FontSize = frm.MyFont.Size FontType = frm.MyFont.Style 'drawFont = frm.MyFont drawFont = New Font(FontFamily, FontSize) drawFont = FontAttributes() brsTextColor = New SolidBrush(frm.txtLabel.ForeColor) s_InsertLabel = frm.txtLabel.Text i_StringLength = s_InsertLabel.Length 'gefixtf Dim objSizeF As SizeF = objGraphics.MeasureString(s_InsertLabel, drawFont, New PointF(X2 - X1, Y2 - Y1), New StringFormat(StringFormatFlags.NoClip)) Dim objPoint As Point = objCanvas.PointToClient(New Point(X1 + objSizeF.Width, Y1 + objSizeF.Height)) widthLabel = objSizeF.Width heightLabel = objSizeF.Height X2 = X1 + widthLabel Y2 = Y1 + heightLabel Else Throw New ApplicationException() End If End Sub ' Draw the object on this Graphics surface. Public Overrides Sub Draw(ByVal gr As System.Drawing.Graphics) ' Make a Rectangle representing this rectangle. Dim rectString As Rectangle rectString = New Rectangle(X1, Y1, widthLabel, heightLabel) rectString = GetBounds() ' See if we're selected. If IsSelected Then gr.DrawString(s_InsertLabel, drawFont, brsTextColor, X1, Y1) 'gr.DrawRectangle(Pens.Black, rect) ' Pens.Transparent gr.DrawRectangle(Pens.Black, rectString) ' Draw grab handles. DrawGrabHandle(gr, X1, Y1) DrawGrabHandle(gr, X1, Y2) DrawGrabHandle(gr, X2, Y2) DrawGrabHandle(gr, X2, Y1) Else gr.DrawString(s_InsertLabel, drawFont, brsTextColor, X1, Y1) 'gr.DrawRectangle(Pens.Black, rect) ' Pens.Transparent gr.DrawRectangle(Pens.Black, rectString) End If End Sub 'get fontattributes Public Function FontAttributes() As Font Return New Font(FontFamily, 12, FontStyle.Regular) End Function ' Return the object's bounding rectangle. Public Overrides Function GetBounds() As System.Drawing.Rectangle Return New Rectangle( _ Min(X1, X1), _ Min(Y1, Y1), _ Abs(widthLabel), _ Abs(heightLabel)) End Function ' Return True if this point is on the object. Public Overrides Function IsAt(ByVal x As Integer, ByVal y As Integer) As Boolean Return (x >= Min(X1, X2)) AndAlso _ (x <= Max(X1, X2)) AndAlso _ (y >= Min(Y1, Y2)) AndAlso _ (y <= Max(Y1, Y2)) End Function ' Move the second point. Public Overrides Sub NewPoint(ByVal x As Integer, ByVal y As Integer) X2 = x Y2 = y End Sub ' Return True if the object is empty (e.g. a zero-length line). Public Overrides Function IsEmpty() As Boolean Return (X1 = X2) AndAlso (Y1 = Y2) End Function End Class The coordinates ( X1 ,X2,Y1, Y2 ) are needed to draw a circle , rectangle etc. ( in the other classes ).This all works. If I load my saved file it shows me the correct location and correct size of drawn objects. If I open my xml file I can see all values are correctly saved ( including my FontFamily ). Also the color which can be adjusted is saved and then properly displayed when I load a previously saved drawing. Of course because the coordinates work, if I insert a textField ,the location where it is being displayed is correct. However here comes the problem , my fontSize and fontfamily don't work. As you can see I created them in the base class, However this does not work. Is my approach completely off? What can I do ? Before saving img14.imageshack.us/i/beforeos.jpg/ After loading the Font jumps back to Sans serif and size 12. I could really use some help here.. Edit: I've been using the sample from this website http://www.vb-helper.com/howto_net_drawing_framework.html

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• Problem rendering VBO

  - by Onno

  I'm developing a game engine using OpenTK. I'm trying to get to grips with the use of VBO's. I've run into some trouble because somehow it doesn't render correctly. Thus far I've used immediate mode to render a test object, a test cube with a texture. namespace SharpEngine.Utility.Mesh { using System; using System.Collections.Generic; using OpenTK; using OpenTK.Graphics; using OpenTK.Graphics.OpenGL; using SharpEngine.Utility; using System.Drawing; public class ImmediateFaceBasedCube : IMesh { private IList<Face> faces = new List<Face>(); public ImmediateFaceBasedCube() { IList<Vector3> allVertices = new List<Vector3>(); //rechtsbovenvoor allVertices.Add(new Vector3(1.0f, 1.0f, 1.0f)); //0 //rechtsbovenachter allVertices.Add(new Vector3(1.0f, 1.0f, -1.0f)); //1 //linksbovenachter allVertices.Add(new Vector3(-1.0f, 1.0f, -1.0f)); //2 //linksbovenvoor allVertices.Add(new Vector3(-1.0f, 1.0f, 1.0f)); //3 //rechtsondervoor allVertices.Add(new Vector3(1.0f, -1.0f, 1.0f)); //4 //rechtsonderachter allVertices.Add(new Vector3(1.0f, -1.0f, -1.0f)); //5 //linksonderachter allVertices.Add(new Vector3(-1.0f, -1.0f, -1.0f)); //6 //linksondervoor allVertices.Add(new Vector3(-1.0f, -1.0f, 1.0f)); //7 IList<Vector2> textureCoordinates = new List<Vector2>(); textureCoordinates.Add(new Vector2(0, 0)); //AA - 0 textureCoordinates.Add(new Vector2(0, 0.3333333f)); //AB - 1 textureCoordinates.Add(new Vector2(0, 0.6666666f)); //AC - 2 textureCoordinates.Add(new Vector2(0, 1)); //AD - 3 textureCoordinates.Add(new Vector2(0.3333333f, 0)); //BA - 4 textureCoordinates.Add(new Vector2(0.3333333f, 0.3333333f)); //BB - 5 textureCoordinates.Add(new Vector2(0.3333333f, 0.6666666f)); //BC - 6 textureCoordinates.Add(new Vector2(0.3333333f, 1)); //BD - 7 textureCoordinates.Add(new Vector2(0.6666666f, 0)); //CA - 8 textureCoordinates.Add(new Vector2(0.6666666f, 0.3333333f)); //CB - 9 textureCoordinates.Add(new Vector2(0.6666666f, 0.6666666f)); //CC -10 textureCoordinates.Add(new Vector2(0.6666666f, 1)); //CD -11 textureCoordinates.Add(new Vector2(1, 0)); //DA -12 textureCoordinates.Add(new Vector2(1, 0.3333333f)); //DB -13 textureCoordinates.Add(new Vector2(1, 0.6666666f)); //DC -14 textureCoordinates.Add(new Vector2(1, 1)); //DD -15 Vector3 copy1 = new Vector3(-2.0f, -2.5f, -3.5f); IList<Vector3> normals = new List<Vector3>(); normals.Add(new Vector3(0, 1.0f, 0)); //0 normals.Add(new Vector3(0, 0, 1.0f)); //1 normals.Add(new Vector3(1.0f, 0, 0)); //2 normals.Add(new Vector3(0, 0, -1.0f)); //3 normals.Add(new Vector3(-1.0f, 0, 0)); //4 normals.Add(new Vector3(0, -1.0f, 0)); //5 //todo: move vertex normal and texture data to datastructure //todo: VBO based rendering //top face //1 IList<VertexData> verticesT1 = new List<VertexData>(); VertexData T1a = new VertexData(); T1a.Normal = normals[0]; T1a.TexCoord = textureCoordinates[5]; T1a.Position = allVertices[3]; verticesT1.Add(T1a); VertexData T1b = new VertexData(); T1b.Normal = normals[0]; T1b.TexCoord = textureCoordinates[9]; T1b.Position = allVertices[0]; verticesT1.Add(T1b); VertexData T1c = new VertexData(); T1c.Normal = normals[0]; T1c.TexCoord = textureCoordinates[10]; T1c.Position = allVertices[1]; verticesT1.Add(T1c); Face F1 = new Face(verticesT1); faces.Add(F1); //2 IList<VertexData> verticesT2 = new List<VertexData>(); VertexData T2a = new VertexData(); T2a.Normal = normals[0]; T2a.TexCoord = textureCoordinates[10]; T2a.Position = allVertices[1]; verticesT2.Add(T2a); VertexData T2b = new VertexData(); T2b.Normal = normals[0]; T2b.TexCoord = textureCoordinates[6]; T2b.Position = allVertices[2]; verticesT2.Add(T2b); VertexData T2c = new VertexData(); T2c.Normal = normals[0]; T2c.TexCoord = textureCoordinates[5]; T2c.Position = allVertices[3]; verticesT2.Add(T2c); Face F2 = new Face(verticesT2); faces.Add(F2); //front face //3 IList<VertexData> verticesT3 = new List<VertexData>(); VertexData T3a = new VertexData(); T3a.Normal = normals[1]; T3a.TexCoord = textureCoordinates[1]; T3a.Position = allVertices[3]; verticesT3.Add(T3a); VertexData T3b = new VertexData(); T3b.Normal = normals[1]; T3b.TexCoord = textureCoordinates[0]; T3b.Position = allVertices[7]; verticesT3.Add(T3b); VertexData T3c = new VertexData(); T3c.Normal = normals[1]; T3c.TexCoord = textureCoordinates[5]; T3c.Position = allVertices[0]; verticesT3.Add(T3c); Face F3 = new Face(verticesT3); faces.Add(F3); //4 IList<VertexData> verticesT4 = new List<VertexData>(); VertexData T4a = new VertexData(); T4a.Normal = normals[1]; T4a.TexCoord = textureCoordinates[5]; T4a.Position = allVertices[0]; verticesT4.Add(T4a); VertexData T4b = new VertexData(); T4b.Normal = normals[1]; T4b.TexCoord = textureCoordinates[0]; T4b.Position = allVertices[7]; verticesT4.Add(T4b); VertexData T4c = new VertexData(); T4c.Normal = normals[1]; T4c.TexCoord = textureCoordinates[4]; T4c.Position = allVertices[4]; verticesT4.Add(T4c); Face F4 = new Face(verticesT4); faces.Add(F4); //right face //5 IList<VertexData> verticesT5 = new List<VertexData>(); VertexData T5a = new VertexData(); T5a.Normal = normals[2]; T5a.TexCoord = textureCoordinates[2]; T5a.Position = allVertices[0]; verticesT5.Add(T5a); VertexData T5b = new VertexData(); T5b.Normal = normals[2]; T5b.TexCoord = textureCoordinates[1]; T5b.Position = allVertices[4]; verticesT5.Add(T5b); VertexData T5c = new VertexData(); T5c.Normal = normals[2]; T5c.TexCoord = textureCoordinates[6]; T5c.Position = allVertices[1]; verticesT5.Add(T5c); Face F5 = new Face(verticesT5); faces.Add(F5); //6 IList<VertexData> verticesT6 = new List<VertexData>(); VertexData T6a = new VertexData(); T6a.Normal = normals[2]; T6a.TexCoord = textureCoordinates[1]; T6a.Position = allVertices[4]; verticesT6.Add(T6a); VertexData T6b = new VertexData(); T6b.Normal = normals[2]; T6b.TexCoord = textureCoordinates[5]; T6b.Position = allVertices[5]; verticesT6.Add(T6b); VertexData T6c = new VertexData(); T6c.Normal = normals[2]; T6c.TexCoord = textureCoordinates[6]; T6c.Position = allVertices[1]; verticesT6.Add(T6c); Face F6 = new Face(verticesT6); faces.Add(F6); //back face //7 IList<VertexData> verticesT7 = new List<VertexData>(); VertexData T7a = new VertexData(); T7a.Normal = normals[3]; T7a.TexCoord = textureCoordinates[4]; T7a.Position = allVertices[5]; verticesT7.Add(T7a); VertexData T7b = new VertexData(); T7b.Normal = normals[3]; T7b.TexCoord = textureCoordinates[9]; T7b.Position = allVertices[2]; verticesT7.Add(T7b); VertexData T7c = new VertexData(); T7c.Normal = normals[3]; T7c.TexCoord = textureCoordinates[5]; T7c.Position = allVertices[1]; verticesT7.Add(T7c); Face F7 = new Face(verticesT7); faces.Add(F7); //8 IList<VertexData> verticesT8 = new List<VertexData>(); VertexData T8a = new VertexData(); T8a.Normal = normals[3]; T8a.TexCoord = textureCoordinates[9]; T8a.Position = allVertices[2]; verticesT8.Add(T8a); VertexData T8b = new VertexData(); T8b.Normal = normals[3]; T8b.TexCoord = textureCoordinates[4]; T8b.Position = allVertices[5]; verticesT8.Add(T8b); VertexData T8c = new VertexData(); T8c.Normal = normals[3]; T8c.TexCoord = textureCoordinates[8]; T8c.Position = allVertices[6]; verticesT8.Add(T8c); Face F8 = new Face(verticesT8); faces.Add(F8); //left face //9 IList<VertexData> verticesT9 = new List<VertexData>(); VertexData T9a = new VertexData(); T9a.Normal = normals[4]; T9a.TexCoord = textureCoordinates[8]; T9a.Position = allVertices[6]; verticesT9.Add(T9a); VertexData T9b = new VertexData(); T9b.Normal = normals[4]; T9b.TexCoord = textureCoordinates[13]; T9b.Position = allVertices[3]; verticesT9.Add(T9b); VertexData T9c = new VertexData(); T9c.Normal = normals[4]; T9c.TexCoord = textureCoordinates[9]; T9c.Position = allVertices[2]; verticesT9.Add(T9c); Face F9 = new Face(verticesT9); faces.Add(F9); //10 IList<VertexData> verticesT10 = new List<VertexData>(); VertexData T10a = new VertexData(); T10a.Normal = normals[4]; T10a.TexCoord = textureCoordinates[8]; T10a.Position = allVertices[6]; verticesT10.Add(T10a); VertexData T10b = new VertexData(); T10b.Normal = normals[4]; T10b.TexCoord = textureCoordinates[12]; T10b.Position = allVertices[7]; verticesT10.Add(T10b); VertexData T10c = new VertexData(); T10c.Normal = normals[4]; T10c.TexCoord = textureCoordinates[13]; T10c.Position = allVertices[3]; verticesT10.Add(T10c); Face F10 = new Face(verticesT10); faces.Add(F10); //bottom face //11 IList<VertexData> verticesT11 = new List<VertexData>(); VertexData T11a = new VertexData(); T11a.Normal = normals[5]; T11a.TexCoord = textureCoordinates[10]; T11a.Position = allVertices[7]; verticesT11.Add(T11a); VertexData T11b = new VertexData(); T11b.Normal = normals[5]; T11b.TexCoord = textureCoordinates[9]; T11b.Position = allVertices[6]; verticesT11.Add(T11b); VertexData T11c = new VertexData(); T11c.Normal = normals[5]; T11c.TexCoord = textureCoordinates[14]; T11c.Position = allVertices[4]; verticesT11.Add(T11c); Face F11 = new Face(verticesT11); faces.Add(F11); //12 IList<VertexData> verticesT12 = new List<VertexData>(); VertexData T12a = new VertexData(); T12a.Normal = normals[5]; T12a.TexCoord = textureCoordinates[13]; T12a.Position = allVertices[5]; verticesT12.Add(T12a); VertexData T12b = new VertexData(); T12b.Normal = normals[5]; T12b.TexCoord = textureCoordinates[14]; T12b.Position = allVertices[4]; verticesT12.Add(T12b); VertexData T12c = new VertexData(); T12c.Normal = normals[5]; T12c.TexCoord = textureCoordinates[9]; T12c.Position = allVertices[6]; verticesT12.Add(T12c); Face F12 = new Face(verticesT12); faces.Add(F12); } public void draw() { GL.Begin(BeginMode.Triangles); foreach (Face face in faces) { foreach (VertexData datapoint in face.verticesWithTexCoords) { GL.Normal3(datapoint.Normal); GL.TexCoord2(datapoint.TexCoord); GL.Vertex3(datapoint.Position); } } GL.End(); } } } Gets me this very nice picture: The immediate mode cube renders nicely and taught me a bit on how to use OpenGL, but VBO's are the way to go. Since I read on the OpenTK forums that OpenTK has problems doing VA's or DL's, I decided to skip using those. Now, I've tried to change this cube to a VBO by using the same vertex, normal and tc collections, and making float arrays from them by using the coordinates in combination with uint arrays which contain the index numbers from the immediate cube. (see the private functions at end of the code sample) Somehow this only renders two triangles namespace SharpEngine.Utility.Mesh { using System; using System.Collections.Generic; using OpenTK; using OpenTK.Graphics; using OpenTK.Graphics.OpenGL; using SharpEngine.Utility; using System.Drawing; public class VBOFaceBasedCube : IMesh { private int VerticesVBOID; private int VerticesVBOStride; private int VertexCount; private int ELementBufferObjectID; private int textureCoordinateVBOID; private int textureCoordinateVBOStride; //private int textureCoordinateArraySize; private int normalVBOID; private int normalVBOStride; public VBOFaceBasedCube() { IList<Vector3> allVertices = new List<Vector3>(); //rechtsbovenvoor allVertices.Add(new Vector3(1.0f, 1.0f, 1.0f)); //0 //rechtsbovenachter allVertices.Add(new Vector3(1.0f, 1.0f, -1.0f)); //1 //linksbovenachter allVertices.Add(new Vector3(-1.0f, 1.0f, -1.0f)); //2 //linksbovenvoor allVertices.Add(new Vector3(-1.0f, 1.0f, 1.0f)); //3 //rechtsondervoor allVertices.Add(new Vector3(1.0f, -1.0f, 1.0f)); //4 //rechtsonderachter allVertices.Add(new Vector3(1.0f, -1.0f, -1.0f)); //5 //linksonderachter allVertices.Add(new Vector3(-1.0f, -1.0f, -1.0f)); //6 //linksondervoor allVertices.Add(new Vector3(-1.0f, -1.0f, 1.0f)); //7 IList<Vector2> textureCoordinates = new List<Vector2>(); textureCoordinates.Add(new Vector2(0, 0)); //AA - 0 textureCoordinates.Add(new Vector2(0, 0.3333333f)); //AB - 1 textureCoordinates.Add(new Vector2(0, 0.6666666f)); //AC - 2 textureCoordinates.Add(new Vector2(0, 1)); //AD - 3 textureCoordinates.Add(new Vector2(0.3333333f, 0)); //BA - 4 textureCoordinates.Add(new Vector2(0.3333333f, 0.3333333f)); //BB - 5 textureCoordinates.Add(new Vector2(0.3333333f, 0.6666666f)); //BC - 6 textureCoordinates.Add(new Vector2(0.3333333f, 1)); //BD - 7 textureCoordinates.Add(new Vector2(0.6666666f, 0)); //CA - 8 textureCoordinates.Add(new Vector2(0.6666666f, 0.3333333f)); //CB - 9 textureCoordinates.Add(new Vector2(0.6666666f, 0.6666666f)); //CC -10 textureCoordinates.Add(new Vector2(0.6666666f, 1)); //CD -11 textureCoordinates.Add(new Vector2(1, 0)); //DA -12 textureCoordinates.Add(new Vector2(1, 0.3333333f)); //DB -13 textureCoordinates.Add(new Vector2(1, 0.6666666f)); //DC -14 textureCoordinates.Add(new Vector2(1, 1)); //DD -15 Vector3 copy1 = new Vector3(-2.0f, -2.5f, -3.5f); IList<Vector3> normals = new List<Vector3>(); normals.Add(new Vector3(0, 1.0f, 0)); //0 normals.Add(new Vector3(0, 0, 1.0f)); //1 normals.Add(new Vector3(1.0f, 0, 0)); //2 normals.Add(new Vector3(0, 0, -1.0f)); //3 normals.Add(new Vector3(-1.0f, 0, 0)); //4 normals.Add(new Vector3(0, -1.0f, 0)); //5 //todo: VBO based rendering uint[] vertexElements = { 3,0,1, //01 1,2,3, //02 3,7,0, //03 0,7,4, //04 0,4,1, //05 4,5,1, //06 5,2,1, //07 2,5,6, //08 6,3,2, //09 6,7,5, //10 7,6,4, //11 5,4,6 //12 }; VertexCount = vertexElements.Length; IList<uint> vertexElementList = new List<uint>(vertexElements); uint[] normalElements = { 0,0,0, 0,0,0, 1,1,1, 1,1,1, 2,2,2, 2,2,2, 3,3,3, 3,3,3, 4,4,4, 4,4,4, 5,5,5, 5,5,5 }; IList<uint> normalElementList = new List<uint>(normalElements); uint[] textureIndexArray = { 5,9,10, 10,6,5, 1,0,5, 5,0,4, 2,1,6, 1,5,6, 4,9,5, 9,4,8, 8,13,9, 8,12,13, 10,9,14, 13,14,9 }; //textureCoordinateArraySize = textureIndexArray.Length; IList<uint> textureIndexList = new List<uint>(textureIndexArray); LoadVBO(allVertices, normals, textureCoordinates, vertexElements, normalElementList, textureIndexList); } public void draw() { //bind vertices //bind elements //bind normals //bind texture coordinates GL.EnableClientState(ArrayCap.VertexArray); GL.EnableClientState(ArrayCap.NormalArray); GL.EnableClientState(ArrayCap.TextureCoordArray); GL.BindBuffer(BufferTarget.ArrayBuffer, VerticesVBOID); GL.VertexPointer(3, VertexPointerType.Float, VerticesVBOStride, 0); GL.BindBuffer(BufferTarget.ArrayBuffer, normalVBOID); GL.NormalPointer(NormalPointerType.Float, normalVBOStride, 0); GL.BindBuffer(BufferTarget.ArrayBuffer, textureCoordinateVBOID); GL.TexCoordPointer(2, TexCoordPointerType.Float, textureCoordinateVBOStride, 0); GL.BindBuffer(BufferTarget.ElementArrayBuffer, ELementBufferObjectID); GL.DrawElements(BeginMode.Polygon, VertexCount, DrawElementsType.UnsignedShort, 0); } //loads a static VBO void LoadVBO(IList<Vector3> vertices, IList<Vector3> normals, IList<Vector2> texcoords, uint[] elements, IList<uint> normalIndices, IList<uint> texCoordIndices) { int size; //todo // To create a VBO: // 1) Generate the buffer handles for the vertex and element buffers. // 2) Bind the vertex buffer handle and upload your vertex data. Check that the buffer was uploaded correctly. // 3) Bind the element buffer handle and upload your element data. Check that the buffer was uploaded correctly. float[] verticesArray = convertVector3fListToFloatArray(vertices); float[] normalsArray = createFloatArrayFromListOfVector3ElementsAndIndices(normals, normalIndices); float[] textureCoordinateArray = createFloatArrayFromListOfVector2ElementsAndIndices(texcoords, texCoordIndices); GL.GenBuffers(1, out VerticesVBOID); GL.BindBuffer(BufferTarget.ArrayBuffer, VerticesVBOID); Console.WriteLine("load 1 - vertices"); VerticesVBOStride = BlittableValueType.StrideOf(verticesArray); GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)(verticesArray.Length * sizeof(float)), verticesArray, BufferUsageHint.StaticDraw); GL.GetBufferParameter(BufferTarget.ArrayBuffer, BufferParameterName.BufferSize, out size); if (verticesArray.Length * BlittableValueType.StrideOf(verticesArray) != size) { throw new ApplicationException("Vertex data not uploaded correctly"); } else { Console.WriteLine("load 1 finished ok"); size = 0; } Console.WriteLine("load 2 - elements"); GL.GenBuffers(1, out ELementBufferObjectID); GL.BindBuffer(BufferTarget.ElementArrayBuffer, ELementBufferObjectID); GL.BufferData(BufferTarget.ElementArrayBuffer, (IntPtr)(elements.Length * sizeof(uint)), elements, BufferUsageHint.StaticDraw); GL.GetBufferParameter(BufferTarget.ElementArrayBuffer, BufferParameterName.BufferSize, out size); if (elements.Length * sizeof(uint) != size) { throw new ApplicationException("Element data not uploaded correctly"); } else { size = 0; Console.WriteLine("load 2 finished ok"); } GL.GenBuffers(1, out normalVBOID); GL.BindBuffer(BufferTarget.ArrayBuffer, normalVBOID); Console.WriteLine("load 3 - normals"); normalVBOStride = BlittableValueType.StrideOf(normalsArray); GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)(normalsArray.Length * sizeof(float)), normalsArray, BufferUsageHint.StaticDraw); GL.GetBufferParameter(BufferTarget.ArrayBuffer, BufferParameterName.BufferSize, out size); Console.WriteLine("load 3 - pre check"); if (normalsArray.Length * BlittableValueType.StrideOf(normalsArray) != size) { throw new ApplicationException("Normal data not uploaded correctly"); } else { Console.WriteLine("load 3 finished ok"); size = 0; } GL.GenBuffers(1, out textureCoordinateVBOID); GL.BindBuffer(BufferTarget.ArrayBuffer, textureCoordinateVBOID); Console.WriteLine("load 4- texture coordinates"); textureCoordinateVBOStride = BlittableValueType.StrideOf(textureCoordinateArray); GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)(textureCoordinateArray.Length * textureCoordinateVBOStride), textureCoordinateArray, BufferUsageHint.StaticDraw); GL.GetBufferParameter(BufferTarget.ArrayBuffer, BufferParameterName.BufferSize, out size); if (textureCoordinateArray.Length * BlittableValueType.StrideOf(textureCoordinateArray) != size) { throw new ApplicationException("texture coordinate data not uploaded correctly"); } else { Console.WriteLine("load 3 finished ok"); size = 0; } } //used to convert vertex arrayss for use with VBO's private float[] convertVector3fListToFloatArray(IList<Vector3> input) { int arrayElementCount = input.Count * 3; float[] output = new float[arrayElementCount]; int fillCount = 0; foreach (Vector3 v in input) { output[fillCount] = v.X; output[fillCount + 1] = v.Y; output[fillCount + 2] = v.Z; fillCount += 3; } return output; } //used for converting texture coordinate arrays for use with VBO's private float[] convertVector2List_to_floatArray(IList<Vector2> input) { int arrayElementCount = input.Count * 2; float[] output = new float[arrayElementCount]; int fillCount = 0; foreach (Vector2 v in input) { output[fillCount] = v.X; output[fillCount + 1] = v.Y; fillCount += 2; } return output; } //used to create an array of floats from private float[] createFloatArrayFromListOfVector3ElementsAndIndices(IList<Vector3> inputVectors, IList<uint> indices) { int arrayElementCount = inputVectors.Count * indices.Count * 3; float[] output = new float[arrayElementCount]; int fillCount = 0; foreach (int i in indices) { output[fillCount] = inputVectors[i].X; output[fillCount + 1] = inputVectors[i].Y; output[fillCount + 2] = inputVectors[i].Z; fillCount += 3; } return output; } private float[] createFloatArrayFromListOfVector2ElementsAndIndices(IList<Vector2> inputVectors, IList<uint> indices) { int arrayElementCount = inputVectors.Count * indices.Count * 2; float[] output = new float[arrayElementCount]; int fillCount = 0; foreach (int i in indices) { output[fillCount] = inputVectors[i].X; output[fillCount + 1] = inputVectors[i].Y; fillCount += 2; } return output; } } } This code will only render two triangles and they're nothing like I had in mind: I've done some searching. In some other questions I read that, if I did something wrong, I'd get no rendering at all. Clearly, something gets sent to the GFX card, but it might be that I'm not sending the right data. I've tried altering the sequence in which the triangles are rendered by swapping some of the index numbers in the vert, tc and normal index arrays, but this doesn't seem to be of any effect. I'm slightly lost here. What am I doing wrong here?

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• Jframe using multiple classes?

  - by user2945880

  and im trying to make it so it can show multiple classes at once Jframe: import javax.swing.JFrame; import java.awt.BorderLayout; public class Concert { public static void main(String[] args) { JFrame frame = new JFrame(); frame.setSize(1000, 800); frame.setTitle("Concert!"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Concertbackground component = new Concertbackground(); BandComponent component1 = new BandComponent(); frame.add(component, BorderLayout.NORTH); frame.add(component1, BorderLayout.CENTER); frame.setVisible(true); } } These are the two classes mentioned in the Jframe: import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Rectangle; import java.awt.geom.Ellipse2D; import java.awt.geom.Line2D; import javax.swing.JComponent; import java.awt.Polygon; /* BandComponent.java Justin Walker 10/27/13 */ public class BandComponent extends JComponent { public void paintComponent(Graphics g) { // Recover Graphics2D Graphics2D g2 = (Graphics2D) g; int xScale = 250; int yScale = 100; int x = 343; int y = 343; //singer Polygon sing = new Polygon(); sing.addPoint(667 ,208 + xScale); sing.addPoint(676,213 + xScale); sing.addPoint(678,217 + xScale); sing.addPoint(682,221 + xScale); sing.addPoint(681,224 + xScale); sing.addPoint(680,231 + xScale); sing.addPoint(676,242 + xScale); sing.addPoint(672,244 + xScale); sing.addPoint(672,250 + xScale); sing.addPoint(682,248 + xScale); sing.addPoint(713,244 + xScale); sing.addPoint(734,247 + xScale); sing.addPoint(750,247 + xScale); sing.addPoint(794,232 + xScale); sing.addPoint(800,231 + xScale); sing.addPoint(801,223 + xScale); sing.addPoint(807,219 + xScale); sing.addPoint(806,221 + xScale); sing.addPoint(806,229 + xScale); sing.addPoint(818,222 + xScale); sing.addPoint(820,223 + xScale); sing.addPoint(825,227 + xScale); sing.addPoint(825,240 + xScale); sing.addPoint(817,243 + xScale); sing.addPoint(807,245 + xScale); sing.addPoint(803,247 + xScale); sing.addPoint(801,252 + xScale); sing.addPoint(781,257 + xScale); sing.addPoint(762,264 + xScale); sing.addPoint(734,271 + xScale); sing.addPoint(701,286 + xScale); sing.addPoint(691,296 + xScale); sing.addPoint(693,311 + xScale); sing.addPoint(690,317 + xScale); sing.addPoint(690,335 + xScale); sing.addPoint(691,339 + xScale); sing.addPoint(689,343 + xScale); sing.addPoint(712,382 + xScale); sing.addPoint(725,400 + xScale); sing.addPoint(731,418 + xScale); sing.addPoint(731,428 + xScale); sing.addPoint(738,454 + xScale); sing.addPoint(741,460 + xScale); sing.addPoint(746,468 + xScale); sing.addPoint(766,468 + xScale); sing.addPoint(771,481 + xScale);// sing.addPoint(723,482 + xScale); sing.addPoint(720,462 + xScale); sing.addPoint(718,454 + xScale); sing.addPoint(709,436 + xScale); sing.addPoint(703,436 + xScale); sing.addPoint(699,417 + xScale); sing.addPoint(686,396 + xScale); sing.addPoint(678,395 + xScale); sing.addPoint(676,437 + xScale); sing.addPoint(673,439 + xScale); sing.addPoint(638,435 + xScale); sing.addPoint(640,398 + xScale); sing.addPoint(634,410 + xScale); sing.addPoint(625,416 + xScale); sing.addPoint(622,436 + xScale); sing.addPoint(622,443 + xScale); sing.addPoint(615,447 + xScale); sing.addPoint(609,456 + xScale); sing.addPoint(606,481 + xScale);// sing.addPoint(557,481 + xScale); sing.addPoint(560,467 + xScale); sing.addPoint(579,467 + xScale); sing.addPoint(587,464 + xScale); sing.addPoint(593,452 + xScale); sing.addPoint(594,441 + xScale); sing.addPoint(592,434 + xScale); sing.addPoint(600,416 + xScale); sing.addPoint(608,405 + xScale); sing.addPoint(609,394 + xScale); sing.addPoint(617,376 + xScale); sing.addPoint(619,363 + xScale); sing.addPoint(632,334 + xScale); sing.addPoint(637,324 + xScale); sing.addPoint(635,314 + xScale); sing.addPoint(639,296 + xScale); sing.addPoint(627,285 + xScale); sing.addPoint(600,279 + xScale); sing.addPoint(582,278 + xScale); sing.addPoint(575,275 + xScale); sing.addPoint(546,256 + xScale); sing.addPoint(536,252 + xScale); sing.addPoint(533,350 + xScale); sing.addPoint(534,361 + xScale); sing.addPoint(532,367 + xScale); sing.addPoint(529,369 + xScale); sing.addPoint(524,363 + xScale); sing.addPoint(525,355 + xScale); sing.addPoint(531,254 + xScale); sing.addPoint(527,249 + xScale); sing.addPoint(527,242 + xScale); sing.addPoint(529,237 + xScale); sing.addPoint(532,237 + xScale); sing.addPoint(536,178 + xScale); sing.addPoint(534,129 + xScale); sing.addPoint(535,123 + xScale); sing.addPoint(541,120 + xScale); sing.addPoint(545,123 + xScale); sing.addPoint(547,131 + xScale); sing.addPoint(545,173 + xScale); sing.addPoint(538,233 + xScale); sing.addPoint(549,239 + xScale); sing.addPoint(558,241 + xScale); sing.addPoint(585,257 + xScale); sing.addPoint(599,257 + xScale); sing.addPoint(627,254 + xScale); sing.addPoint(647,251 + xScale); sing.addPoint(653,248 + xScale); sing.addPoint(652,235 + xScale); sing.addPoint(648,226 + xScale); sing.addPoint(652,218 + xScale); sing.addPoint(661,212 + xScale); g2.setColor(Color.black); g2.fill(sing); g2.draw(sing); //guitar Polygon guitar = new Polygon(); guitar.addPoint(148,28); guitar.addPoint(158,32); guitar.addPoint(164,38); guitar.addPoint(168,46); guitar.addPoint(169,52); guitar.addPoint(167,60); guitar.addPoint(164,65); guitar.addPoint(165,70); guitar.addPoint(161,76); guitar.addPoint(158,92); guitar.addPoint(162,97); guitar.addPoint(161,102); guitar.addPoint(158,106); guitar.addPoint(155,108); guitar.addPoint(151,127); guitar.addPoint(152,133); guitar.addPoint(155,137); guitar.addPoint(151,146); guitar.addPoint(153,147); guitar.addPoint(160,142); guitar.addPoint(162,133); guitar.addPoint(162,123); guitar.addPoint(161,113); guitar.addPoint(162,110); guitar.addPoint(164,117); guitar.addPoint(169,131); guitar.addPoint(171,144); guitar.addPoint(170,159); guitar.addPoint(166,167); guitar.addPoint(166,171); guitar.addPoint(174,174); guitar.addPoint(183,184); guitar.addPoint(191,195); guitar.addPoint(196,198); guitar.addPoint(198,200); guitar.addPoint(199,210); guitar.addPoint(211,225); guitar.addPoint(212,233); guitar.addPoint(220,248); guitar.addPoint(233,260); guitar.addPoint(245,266); guitar.addPoint(248,268); guitar.addPoint(249,277); guitar.addPoint(205,275); guitar.addPoint(204,262); guitar.addPoint(187,238); guitar.addPoint(178,224); guitar.addPoint(177,216); guitar.addPoint(156,201); guitar.addPoint(146,197); guitar.addPoint(134,211); guitar.addPoint(128,229); guitar.addPoint(125,244);// guitar.addPoint(121,246); guitar.addPoint(107,248); guitar.addPoint(100,252); guitar.addPoint(97,258); guitar.addPoint(96,253); guitar.addPoint(89,258); guitar.addPoint(65,267); guitar.addPoint(63,274); guitar.addPoint(64,283); guitar.addPoint(41,282); guitar.addPoint(44,270); guitar.addPoint(47,264); guitar.addPoint(51,255); guitar.addPoint(73,238); guitar.addPoint(79,228); guitar.addPoint(97,222); guitar.addPoint(101,204); guitar.addPoint(102,181); guitar.addPoint(100,170); guitar.addPoint(95,161); guitar.addPoint(97,154); guitar.addPoint(91,152); guitar.addPoint(77,131); guitar.addPoint(65,123); guitar.addPoint(61,105); guitar.addPoint(64,94); guitar.addPoint(72,91); guitar.addPoint(78,82); guitar.addPoint(78,76); guitar.addPoint(70,73); guitar.addPoint(70,67); guitar.addPoint(93,51); guitar.addPoint(101,48); guitar.addPoint(111,52); guitar.addPoint(118,59); guitar.addPoint(119,70); guitar.addPoint(117,78); guitar.addPoint(113,79); guitar.addPoint(112,86); guitar.addPoint(111,88); guitar.addPoint(109,89); guitar.addPoint(109,92); guitar.addPoint(122,99);// guitar.addPoint(124,99); guitar.addPoint(133,96); guitar.addPoint(145,93); //guitar.addPoint(138,124); guitar.addPoint(150,69); guitar.addPoint(150,62); guitar.addPoint(155,58); guitar.addPoint(154,53); guitar.addPoint(149,50); guitar.addPoint(154,46); guitar.addPoint(153,38); guitar.addPoint(147,28); g2.setColor(Color.black); g2.fill(guitar); g2.draw(guitar); Polygon guitar2 = new Polygon (); guitar2.addPoint(141,108); guitar2.addPoint(139,126); guitar2.addPoint(135,122); guitar2.addPoint(128,122); guitar2.addPoint(129,116); guitar2.addPoint(143,108); g2.setColor(Color.white); g2.fill(guitar2); g2.draw(guitar2); //bass guitar Polygon bassgt = new Polygon (); bassgt.addPoint(871,21); bassgt.addPoint(879,24); bassgt.addPoint(885,32); bassgt.addPoint(886,42); bassgt.addPoint(895,47); bassgt.addPoint(904,56); bassgt.addPoint(907,69); bassgt.addPoint(909,83); bassgt.addPoint(910,91); bassgt.addPoint(941,81); bassgt.addPoint(946,75); bassgt.addPoint(945,67); bassgt.addPoint(950,67); bassgt.addPoint(955,75); bassgt.addPoint(960,68); bassgt.addPoint(963,74); bassgt.addPoint(967,72); bassgt.addPoint(971,66); bassgt.addPoint(973,70); bassgt.addPoint(981,67); bassgt.addPoint(984,71); bassgt.addPoint(982,76); bassgt.addPoint(987,80); bassgt.addPoint(986,82); bassgt.addPoint(980,83); bassgt.addPoint(979,90); bassgt.addPoint(974,85); bassgt.addPoint(970,86); bassgt.addPoint(973,91); bassgt.addPoint(965,86); bassgt.addPoint(960,90); bassgt.addPoint(961,100); bassgt.addPoint(955,92); bassgt.addPoint(944,91); bassgt.addPoint(907,103); bassgt.addPoint(906,109); bassgt.addPoint(893,114); bassgt.addPoint(895,123); bassgt.addPoint(900,131); bassgt.addPoint(904,134); bassgt.addPoint(908,145); bassgt.addPoint(911,159); bassgt.addPoint(918,171); bassgt.addPoint(919,190); bassgt.addPoint(923,198); bassgt.addPoint(919,201); bassgt.addPoint(919,210); bassgt.addPoint(927,220); bassgt.addPoint(942,226); bassgt.addPoint(944,234); bassgt.addPoint(909,230); bassgt.addPoint(905,214); bassgt.addPoint(899,204); bassgt.addPoint(893,203); bassgt.addPoint(889,171); bassgt.addPoint(877,151); bassgt.addPoint(861,152); bassgt.addPoint(852,169); bassgt.addPoint(849,203); bassgt.addPoint(841,210); bassgt.addPoint(840,228); bassgt.addPoint(828,233); bassgt.addPoint(806,235); bassgt.addPoint(805,228); bassgt.addPoint(822,219); bassgt.addPoint(824,204); bassgt.addPoint(817,201); bassgt.addPoint(822,196); bassgt.addPoint(822,184); bassgt.addPoint(828,162); bassgt.addPoint(829,152); bassgt.addPoint(820,149); bassgt.addPoint(811,144); bassgt.addPoint(806,134); bassgt.addPoint(805,117); bassgt.addPoint(820,107); bassgt.addPoint(819,89); bassgt.addPoint(811,83); bassgt.addPoint(811,77); bassgt.addPoint(824,66); bassgt.addPoint(825,61); bassgt.addPoint(842,53); bassgt.addPoint(852,43); bassgt.addPoint(853,29); bassgt.addPoint(870,20); g2.setColor(Color.black); g2.fill(bassgt); g2.draw(bassgt); Polygon bassgt2 = new Polygon(); bassgt2.addPoint(845,78); bassgt2.addPoint(845,98); bassgt2.addPoint(843,98); bassgt2.addPoint(842,105); bassgt2.addPoint(839,109); bassgt2.addPoint(834,103); bassgt2.addPoint(832,85); bassgt2.addPoint(845,78); g2.setColor(Color.white); g2.fill(bassgt2); g2.draw(bassgt2); Polygon drums = new Polygon (); drums.addPoint(713,104); drums.addPoint(706,121); drums.addPoint(721,377); drums.addPoint(248,380); drums.addPoint(253,228); drums.addPoint(250,206); drums.addPoint(237,178); drums.addPoint(206,166); drums.addPoint(201,154); drums.addPoint(198,152); drums.addPoint(208,148); drums.addPoint(236,150); drums.addPoint(247,130); drums.addPoint(227,119); drums.addPoint(219,105); drums.addPoint(222,96); drums.addPoint(233,88); drums.addPoint(251,84); drums.addPoint(272,83); drums.addPoint(300,91); drums.addPoint(285,72); drums.addPoint(294,57); drums.addPoint(319,46); drums.addPoint(372,45); drums.addPoint(406,50); drums.addPoint(428,65); drums.addPoint(433,74); drums.addPoint(450,58); drums.addPoint(478,48); drums.addPoint(514,48); drums.addPoint(544,51); drums.addPoint(566,52); drums.addPoint(577,67); drums.addPoint(575,79); drums.addPoint(561,95); drums.addPoint(545,98); drums.addPoint(525,105); drums.addPoint(524,147); drums.addPoint(524,183); drums.addPoint(645,175); drums.addPoint(662,143); drums.addPoint(617,152); drums.addPoint(608,148); drums.addPoint(614,139); drums.addPoint(633,128); drums.addPoint(661,116); drums.addPoint(659,107); drums.addPoint(625,114); drums.addPoint(592,113); drums.addPoint(571,111); drums.addPoint(565,102); drums.addPoint(576,86); drums.addPoint(616,70); drums.addPoint(647,66); drums.addPoint(679,67); drums.addPoint(695,72); drums.addPoint(699,90); drums.addPoint(678,100); drums.addPoint(667,103); drums.addPoint(672,113); drums.addPoint(689,105); drums.addPoint(709,106); g2.setColor(Color.black); g2.fill(drums); g2.draw(drums); } } The second class: import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Rectangle; import java.awt.geom.Ellipse2D; import java.awt.geom.Line2D; import javax.swing.JComponent; import java.awt.GradientPaint; /* component that draws the concert background */ public class Concertbackground extends JComponent { public void paintComponent(Graphics g) { super.paintComponent(g); // Recover Graphics2D Graphics2D g2 = (Graphics2D) g; //Background Top g2.setColor(Color.BLUE); Rectangle backgroundTop = new Rectangle (0, 0, getWidth(), getHeight() / 4); g2.fill(backgroundTop); // Background bottom g2.setColor(Color.GREEN); Rectangle backgroundBottom = new Rectangle (0, getHeight() / 2, getWidth(), getHeight() / 2); g2.fill(backgroundBottom); // Speaker base g2.setColor(Color.BLACK); Rectangle base = new Rectangle (0, 0, 50, 100); g2.fill(base); // Speakers circles gray top g2.setColor(Color.DARK_GRAY); Ellipse2D.Double speakerTop = new Ellipse2D.Double(10, 10, 30, 30); g2.fill(speakerTop); //speakers circles black top g2.setColor(Color.BLACK); Ellipse2D.Double speakerTop1 = new Ellipse2D.Double(15, 15, 20, 20); g2.fill(speakerTop1); // Speakers circles gray bottom g2.setColor(Color.DARK_GRAY); Ellipse2D.Double speakerBottom = new Ellipse2D.Double(10, 50, 30, 30); g2.fill(speakerBottom); //speakers circles black bottom g2.setColor(Color.BLACK); Ellipse2D.Double speakerBottom1 = new Ellipse2D.Double(15, 55, 20, 20); g2.fill(speakerBottom1); } } My main question is how do I change my Jframe so it can use as many classes as I want, It cant be the size of my classes because they were used with the same 1000, 800 Jframe to make the classes. I also need to be able to add more than just these two classes to my Jframe.

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• error CS0177: The out parameter 'Wx' must be assigned to before control leaves the current method

  - by sonny5

  using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; public class Form1 : System.Windows.Forms.Form { public static float WXmin; public static float WYmin; public static float WXmax; public static float WYmax; public static int VXmin; public static int VYmin; public static int VXmax; public static int VYmax; public static float Vx; public static float Vy; public Form1() { InitializeComponent(); } private void InitializeComponent() { //this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); this.ClientSize = new System.Drawing.Size(400, 300); this.Text="Pass Args"; this.Paint += new System.Windows.Forms.PaintEventHandler(this.doLine); } static void Main() { Application.Run(new Form1()); } private void doLine(object sender, System.Windows.Forms.PaintEventArgs e) { Graphics g = e.Graphics; g.FillRectangle(Brushes.White, this.ClientRectangle); Pen p = new Pen(Color.Black); g.DrawLine(p, 0, 0, 100, 100); p.Dispose(); } private void eachCornerPix (object sender, PaintEventArgs e, out float Wx, out float Wy, out float Vx, out float Vy) { Graphics g = this.CreateGraphics(); Pen penBlu = new Pen(Color.Blue, 2); SolidBrush redBrush = new SolidBrush(Color.Red); int width = 2; // 1 pixel wide in x int height = 2; float [] Wxc = {0.100f, 5.900f, 5.900f, 0.100f}; float [] Wyc = {0.100f, 0.100f, 3.900f, 3.900f}; for (int i = 0; i<3; i++) { Wx = Wxc[i]; Wy = Wyc[i]; Vx = ((Wx - WXmin)*((VXmax-VXmin)+VXmin)/(WXmax-WXmin)); Vy = ((Wy - WYmin)*(VYmax-VYmin)/(WYmax-WYmin)+VYmin); Console.WriteLine("eachCornerPix Vx= {0}", Vx); Console.WriteLine("eachCornerPix Vy= {0}", Vy); g.FillRectangle(redBrush, Vx, Vy, width, height); g.Dispose(); } // Desired effect: Use the array values (Wxc, Wyc) and re-assign them to Wx and Wy. Then use // Wx and Wy as components to calculate Vx and Vy. // My end goal...once compile issues are resolved, is to pass each array value listed // using this method. This should allow 4 xy point pairs to be plotted. // Errors: // pass1.cs(51,18): error CS0177: The out parameter 'Wx' must be assigned to before // control leaves the current method // pass1.cs(51,18): error CS0177: The out parameter 'Wy' must be assigned to before // control leaves the current method // pass1.cs(51,18): error CS0177: The out parameter 'Vx' must be assigned to before // control leaves the current method // pass1.cs(51,18): error CS0177: The out parameter 'Vy' must be assigned to before // control leaves the current method } }

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• Edit and render RichText

  - by OregonGhost

  We have an application (a custom network management tool for building automation) that supports printing labels that you can cut out and insert into the devices' front displays. In earlier versions of the tool (not developed in my company), the application just pushed the strings into an Excel file that the field technician could then manipulate (like formatting text). We didn't do this in the new version because it was hard (impossible) to keep the Excel file in sync, and to avoid a binding to an external application (let alone different versions of Excel). We're using PDFSharp for rendering the labels. It has a System.Drawing-like interface, but can output to a System.Drawing.Graphics (screen / printer) as well as to a PDF file, which is a requirement. Later, basic formatting was introduced like Font Family, Style, Size, Color which would apply to one label (i.e. to exactly one string). Now the customer wants to be able to apply these formats to single characters in a string. I think the easiest way would be to support a subset of RichText. It's not as easy as I thought though. Currently the editor just displays a TextBox for the label you want to edit, with the font set to the label's font. I thought I'd just replace it with RichTextBox, and update the formatting buttons to use the RichTextBox formatting properties. Fairly easy. However, I need to draw the text. I know you can get the RichTextBox to draw to a HDC or System.Drawing.Graphics - but as already said, I need it to use PDFSharp. Rendering to bitmaps is not an option, since the PDF must not be huge, and it's a lot of labels. Unfortunately I couldn't get the RichTextBox to tell me the layout of the text - I'm fine with doing the actual rendering by hand, as long as I know where to draw what. This is the first question: How can I get the properly layouted metrics of the rich text out of a RichTextBox? Or is there any way to convert the rich text to a vector graphics format that can be easily drawn manually? I know about NRTFTree which can be used to parse and manipulate RichText. The documentation is bad (actually I don't know, it's Spanish), but I think I can get it to work. As far as I understood, it won't provide layouting as well. Because of this, I think I'll have to write a custom edit control (remember, it's basically just one or two line labels with basic RTF formatting, not a full-fledged edit control - more like editing a textbox in PowerPoint) and write custom text layout logic that used PDFSharp rather than System.Drawing for drawing. Is there any existing, even if partial, solution available, either for the editing or for doing the layout manually (or both)? Or is there an entirely different approach I'm just not seeing? Bonus points if exporting the label texts as RTF into a CSV file, and then importing in Excel retains the formatting. For the editing part, I need it to work in Windows Forms. Other than that it's not Windows-Forms-related, I think.

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• How to take the snapshot of a IE webpage through a BHO (C#)

  - by Kapil

  Hi, I am trying to build an IE BHO in C# for taking the snapshot of a webpage loaded in the IE browser. Here is what I'm trying to do: public class ShowToolbarBHO : BandObjectLib.IObjectWithSite { IWebBrowser2 webBrowser = null; public void SetSite (Object site) { ....... if (site != null) { ...... webBrowser = (IWebBrowser2)site; ...... } } } Also, I p/invoke the following COM methods: [Guid("0000010D-0000-0000-C000-000000000046")] [InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)] [ComImportAttribute()] public interface IViewObject { void Draw([MarshalAs(UnmanagedType.U4)] int dwDrawAspect, int lindex, IntPtr pvAspect, [In] IntPtr ptd, IntPtr hdcTargetDev, IntPtr hdcDraw, [MarshalAs(UnmanagedType.LPStruct)] ref COMRECT lprcBounds, [In] IntPtr lprcWBounds, IntPtr pfnContinue, int dwContinue); int GetColorSet([MarshalAs(UnmanagedType.U4)] int dwDrawAspect, int lindex, IntPtr pvAspect, [In] IntPtr ptd, IntPtr hicTargetDev, [Out] IntPtr ppColorSet); int Freeze([MarshalAs(UnmanagedType.U4)] int dwDrawAspect, int lindex, IntPtr pvAspect, out IntPtr pdwFreeze); int Unfreeze([MarshalAs(UnmanagedType.U4)] int dwFreeze); int SetAdvise([MarshalAs(UnmanagedType.U4)] int aspects, [MarshalAs(UnmanagedType.U4)] int advf, [MarshalAs(UnmanagedType.Interface)] IAdviseSink pAdvSink); void GetAdvise([MarshalAs(UnmanagedType.LPArray)] out int[] paspects, [MarshalAs(UnmanagedType.LPArray)] out int[] advf, [MarshalAs(UnmanagedType.LPArray)] out IAdviseSink[] pAdvSink); } [StructLayoutAttribute(LayoutKind.Sequential)] public class COMRECT { public int left; public int top; public int right; public int bottom; public COMRECT() { } public COMRECT(int left, int top, int right, int bottom) { this.left = left; this.top = top; this.right = right; this.bottom = bottom; } } [InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)] [ComVisibleAttribute(true)] [GuidAttribute("0000010F-0000-0000-C000-000000000046")] [ComImportAttribute()] public interface IAdviseSink { void OnDataChange([In]IntPtr pFormatetc, [In]IntPtr pStgmed); void OnViewChange([MarshalAs(UnmanagedType.U4)] int dwAspect, [MarshalAs(UnmanagedType.I4)] int lindex); void OnRename([MarshalAs(UnmanagedType.Interface)] object pmk); void OnSave(); void OnClose(); } Now When I take the snapshot: I make a call CaptureWebScreenImage((IHTMLDocument2) webBrowser.document); public static Image CaptureWebScreenImage(IHTMLDocument2 myDoc) { int heightsize = (int)getDocumentAttribute(myDoc, "scrollHeight"); int widthsize = (int)getDocumentAttribute(myDoc, "scrollWidth"); Bitmap finalImage = new Bitmap(widthsize, heightsize); Graphics gFinal = Graphics.FromImage(finalImage); COMRECT rect = new COMRECT(); rect.left = 0; rect.top = 0; rect.right = widthsize; rect.bottom = heightsize; IntPtr hDC = gFinal.GetHdc(); IViewObject vO = myDoc as IViewObject; vO.Draw(1, -1, (IntPtr)0, (IntPtr)0, (IntPtr)0, (IntPtr)hDC, ref rect, (IntPtr)0, (IntPtr)0, 0); gFinal.ReleaseHdc(); gFinal.Dispose(); return finalImage; } I am not getting the image of the webpage. Rather I am getting an image with black background. I am not sure if this is the right way of doing it, but I found over the web that IViewObject::Draw method is used for taking the image of a webpage in IE. I was earlier doing the image capture using the Native PrintWindow() method as mentioned in the following codeproject's page - http://www.codeproject.com/KB/graphics/IECapture.aspx But the image size is humongous! I was trying to see if I can reduce the size by using other techniques. It would be great if someone can point out the mistakes (I am sure there would be many) in my code above. Thanks, Kapil

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