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  • iphone app with role based login?

    - by chaitanya
    Can iPhone apps have role based login? In my application I have to display the content according to the role of the user (employee, visitor). Till now I havent seen any app with role based login for iphone. Can I develop role based login? is there any restriction from apple side for these kind of logins to approve the app?

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  • Can't get PostgreSQL to run in Debian Lenny

    - by nuqqsa
    I'm trying to install PostgreSQL 8.3 on Debian Lenny (kernel 2.6.26-2-686) using the package manager: sudo apt-get install postgresql-8.3 postgresql-client-8.3 postgresql-contrib-8.3 postgresql-common When deploying the package postgresql-common, the following warning is displayed: supported_versions: WARNING: Unknown Debian release: 5.0.4 I wonder if this is related to the problem I describe below. Next I try to launch the database server but it doesn't have any effect, neither any logs are generated. sudo /etc/init.d/postgresql-8.3 start Does anybody have a clue of what might be going on?

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  • Equivalent of LaTeX "eqnarray" in Microsoft Word 2007 equation editor?

    - by Niten
    In LaTeX one can use the eqnarray environment to display a set of equations aligned horizontally on their equality signs or other element, e.g.: \begin{eqnarray*} x &=& 5! \\ &=& 5 \cdot 4 \cdot 3 \cdot 2 \cdot 1 \end{eqnarray*} This will render as follows (notice the alignment of the equality signs): http://imgur.com/TxH0Y.png (Sorry, I don't have any reputation here yet so I'm not allowed to inline the image.) Is there a good way to achieve the same effect in Microsoft Word 2007's built in equation editor?

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  • How to restore jump list for Windows Explorer pinned taskbar icon?

    - by Dario Solera
    I pinned Windows Explorer's icon to my taskbar months ago, and all worked fine, including jump lists. Note: I changed the default Explorer's folder using the usual trick of changing the GUID in the shortcut. Now, all of a sudden, the jump list is empty, and dropping folders on the pinned icon does not produce any effect, nor recently-opened folders show up in the list (although in the taskbar options I made sure to have it remember recently open items). How can I restore the original functionality, given that all other pinned applications jump lists work correctly? I'm running Windows 7 Ultimate x64, updated with the latest patches. The OS is in US English and my locale is Italian-Italy.

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  • Is it possible to urlencode a url that contains a url encoded url?

    - by Mark
    I have a website that uses the facebook, twitter, delicious share links. They contain a a url encoded url of the website that you wish to share. The problem is I then want to send the facebook/twitter/delicious url through a php redirect page. Will it work to encode a url within an encoded url? Will there be side effects? To simplify my question: www.website.com/redirect.php?url=" URLENCODED (http://www.facbook.com/sharer.php?t='URLENCODED(title)'&u='URLENCODED(http://www.hotel.com)')

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  • How to send sms and receive sms in Iphone sdk?

    - by monish
    Hi Guys, I need a help from ur side.Here I want to implement the sms functionality in my application.Is there anyway to or any documentation to implement this functionality. can anyone having sample code regarding to this? Anyone's help will be much appreciated. Thank you, Monish.

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  • Database-independant SQL String Concatenation in Rails

    - by Craig Walker
    I want to do a database-side string concatenation in a Rails query, and do it in database-independent way. SQL-92 specifies double-bar (||) as the concatenation operator. Unfortunately it looks like MS SQL Server doesn't support it; it uses + instead. I'm guessing that Rails' SQL grammar abstraction has solved the db-specific operator problem already. If it does exist, how do I use it?

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  • Linux Programs for pulling measurements from graphics

    - by Zack
    As a front-end developer, I'm often given graphics of web sites and told pretty much, "Make it work." I've recently started working on Linux 100% of the time and was wondering if there's any programs out there that're good for "digesting" graphics. All I do, pretty much, is draw little selection boxes and takes notes on their dimensions; I also slice out a piece of the graphic (i.e. copy out just the part of the graphic I need for to make the same effect in CSS). Before now I've been very happy with Fireworks, but I need something for Linux, any suggestions? As a note, I mainly deal with pixel based graphics, so the program being vector based isn't a necessity.

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  • How do I enable greedy MigrationHeuristic in Karmic?

    - by Matthew
    My laptop performs very poorly for 2d graphics. For example, Docky's zoom effect and compiz effects are very choppy. In Jaunty, I was able to fix this by adding the following line under the "Device" section in my xorg.conf: Option "MigrationHeuristic" "greedy" In Karmic, there is no xorg.conf by default, so I copied my old one (from Jaunty). However, everything is still slow. Here is my xorg.conf: Section "Device" Identifier "Configured Video Device" Option "MigrationHeuristic" "greedy" EndSection Section "Monitor" Identifier "Configured Monitor" EndSection Section "Screen" Identifier "Default Screen" Monitor "Configured Monitor" Device "Configured Video Device" EndSection From googling about, it sounds like "MigrationHeuristic" is only an option for the "EXA" mode, while Karmic has switched the intel driver to "UXA". So I tried adding this line under the "Device" section: Option "AccelMethod" "exa" But this didn't help.

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  • How to maximize http.sys file upload performance

    - by anelson
    I'm building a tool that transfers very large streaming data sets (possibly on the order of terabytes in a single stream; routinely in the tens of gigabytes) from one server to another. The client portion of the tool will read blocks from the source disk, and send them over the network. The server side will read these blocks off the network and write them to a file on the server disk. Right now I'm trying to decide which transport to use. Options are raw TCP, and HTTP. I really, REALLY want to be able to use HTTP. The HttpListener (or WCF if I want to go that route) make it easy to plug in to the HTTP Server API (http.sys), and I can get things like authentication and SSL for free. The problem right now is performance. I wrote a simple test harness that sends 128K blocks of NULL bytes using the BeginWrite/EndWrite async I/O idiom, with async BeginRead/EndRead on the server side. I've modified this test harness so I can do this with either HTTP PUT operations via HttpWebRequest/HttpListener, or plain old socket writes using TcpClient/TcpListener. To rule out issues with network cards or network pathways, both the client and server are on one machine and communicate over localhost. On my 12-core Windows 2008 R2 test server, the TCP version of this test harness can push bytes at 450MB/s, with minimal CPU usage. On the same box, the HTTP version of the test harness runs between 130MB/s and 200MB/s depending upon how I tweak it. In both cases CPU usage is low, and the vast majority of what CPU usage there is is kernel time, so I'm pretty sure my usage of C# and the .NET runtime is not the bottleneck. The box has two 6-core Xeon X5650 processors, 24GB of single-ranked DDR3 RAM, and is used exclusively by me for my own performance testing. I already know about HTTP client tweaks like ServicePointManager.MaxServicePointIdleTime, ServicePointManager.DefaultConnectionLimit, ServicePointManager.Expect100Continue, and HttpWebRequest.AllowWriteStreamBuffering. Does anyone have any ideas for how I can get HTTP.sys performance beyond 200MB/s? Has anyone seen it perform this well on any environment?

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  • serving static assets via http is really slow compared to sshfs (apache2/nginx)

    - by s1lv3r
    After migrating to a new VPS I had some users complaining about slow loading images on their sites. After creating some test files with dd I realized that I can download all files via sshfs with full speed while downloads via web are painfully slow. The larger the file is and the longer the transfer takes, the slower the transfer speed gets. I thought I had some problems with Apache and just spend the whole evening with replacing Apache2 against nginx for static file serving - with no effect at all. No I/O wait states in top. Tons of RAM free, no high CPU utilization and hdparm shows a decent I/O performance at all times. I just have no idea anymore, what's happening on this server. This is a link to a demo file: http://master.dealux.de/file.tgz Anybody an idea what I can check out?

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  • What are guard methods/classes?

    - by Paul Sasik
    i just noticed the guard method/class mentioned in this question and i don't really get the concept from the answers. And alas, Jon Skeet's link to an MS site never loaded. A few quick Google searches seemed to yield only products, not software engineering concepts. Any explanation and/or samples would be appreciated. (Especially from the .Net side of things.)

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  • Windows 7 USB power lose after a few seconds / minutes

    - by Stefan Dunn
    My friend's computer has a problem where the USB ports causes problems with the power of some devices connected to the computer. The USB mouse has no problems, however the Wireless Adapter looses power after around 20 seconds of use and USB Flash Drives cause the computer to either freeze, lose power (and become unresponsive) or become disconnected (still shown in Device Manager, but not in My Computer) when trying to transfer any type of file to / from the computer. I have a suspicion it's the Motherboard but could it also be a Software problem? Tried a new case, RAM, CPU and GFX Card which had no effect. The problem occurs on both the Front USB and Back (Motherboard) USB Ports. UPDATE: Tried the USB devices with an Ubuntu Live CD and they work fine, could this mean it's a problem with Windows (x64)?

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  • How to clip the contents of a custom NSView?

    - by Paperflyer
    I have a custom NSView that displays a nice scale/ruler. I am drawing text labels that are partly outside the actual drawing area so they get clipped by the view (looks nice). Now, I want to introduce empty side margins into the view and need to clip its content manually. How can I set up a custom clipping rectangle?

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  • ASP.NET/MVC: Inline code

    - by JamesBrownIsDead
    What am I doing wrong? How come <%: this %> isn't being interpreted as C#? Here's the code (ignore the left side): And here is what it renders (notice the Firebug display): What do you think is going on? MVC newb here. :(

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  • Changing a formwindows backcolor from a panel

    - by JPJedi
    I have a panel that is docked to the right side of a windows form. I set a color with a setting on the panel but I want to then update the main form (not the panel) backcolor to the new setting. But when I use me.backcolor = setting it changes the panels backcolor. This is also with VB.net windows forms with Visual Studios 2008 Thanks

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  • Will disk cloning resolve bad stripes on RAID?

    - by user13323
    Hi. We have a logical RAID1 drive in bad stripes state, which kept that status even after replacement and rebuilding of both drives, and gives errors in Windows logs about failure of writing to disk. IBM support suggests erasing and re-creating the RAID, then re-installing the Windows. The resulting down-time unacceptible for us, so we want to clone the RAID (via Acronis True Image), erase and re-create the RAID, then dump the cloned data back. Following IBM logic where RAID erasing and re-creation resets the whole RAID meta-data, this should clear the bad-stripes status, and start from a blank page. Question is if such strategy is possible, and will produce the desired effect? Any idea is appreciated - thanks in advance!

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  • How to backup database to disk using JPA?

    - by Nitesh Panchal
    Hello, Which query to write in JPQL for backing up database on disk? If in JPQL it's not available even native sql query will do. Also, i would like to bring one issue in front of stackoverflow developers :- This site doesn't properly work in Opera (Opera 9.63). Whenever i write question and click "Post Your question" The button click event doesn't fire at all, may be, the server side event doesn't fire or something. However, no such problem comes in IE and firefox.

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  • How to restore a previous firefox session?

    - by jae
    FF 3.5.4 on Ubuntu 9.10. I have (of course) session saving (the built-in one) enabled. I closed the main FF window, but the "Downloads" window was still open. And on reopen, it had forgotten about the previous tabs. This is annoying is hell, and yes, I should report (or check for) a bug. If I could stomach bugzilla, that is. :P I have the sessionstore.js file with this older session (scanning it with less showed many of the sites I know had been open). How do I get FF to use this session file? I did try to remove sessionstore.* and copy the sessionstore.js (or .bak) to the profile folder. But that doesn't have any effect. EDIT: rewritten, to make it as obvious as it can be. I wasn't expecting people to jump to the "this guy's a stupid git" quite so easily.

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  • Network communication for a turn based board game

    - by randooom
    Hi all, my first question here, so please don't be to harsh if something went wrong :) I'm currently a CS student (from Germany, if this info is of any use ;) ) and we got a, free selectable, programming assignment, which we have to write in a C++/CLI Windows Forms Application. My team, two others and me, decided to go for a network-compatible port of the board game Risk. We divided the work in 3 Parts, namely UI, game logic and network. Now we're on the part where we have to get everything working together and the big question mark is, how to get the clients synchronized with each other? Our approach so far is, that each client has all information necessary to calculate and/or execute all possible actions. Actually the clients have all information available at all, aside from the game-initializing phase (add players, select map, etc.), which needs one "super-client" with some extra stuff to control things. This is the standard scenario of our approach: player performs action, the action is valid and got executed on the players client action is sent over the network action is executed on the other clients The design (i.e. no or code so far) we came up with so far, is something like the following pseudo sequence diagram. Gui, Controller and Network implement all possible actions (i.e. all actions which change data) as methods from an interface. So each part can implement the method in a way to get their job done. Example with Action(): On the player side's Client: Player-->Gui.Action() Gui-->Controller.Action() Controller-->Logic.Action (Logic.Action() == NoError)? Controller-->Network.Action() Network-->Parser.ParseAction() Network.Send(msg) On all other clients: Network.Recv(msg) Network-->Parser.Deparse(msg) Parser-->Logic.Action() Logic-->Gui.Action() The questions: Is this a viable approach to our task? Any better/easier way to this? Recommendations, critique? Our knowledge (so you can better target your answer): We are on the beginner side, in regards to programming on a somewhat larger projects with a small team. All of us have some general programming experience and basic understanding of the .Net Libraries and Windows Forms. If you need any further information, please feel free to ask.

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  • VPN Server Problem

    - by vikas-2007bajaj
    Hi, I have Configure VPN Server for Online share Trading. I have so many VPN Clients in my VPN Server. Sometimes my VPN Clients disconnected from Systems but it shows in system tray i.e. connected but we are not able to access my application on the server.Then I disabled my Local area connection on client machine but it doesn't effect until I restart my System again.Firstly I want to know Task Manager Service for my VPN Client & how this problem can be remove.Waiting for reply. Thanks, Vikas Bajaj

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  • How would I modify this ffmpeg command to include 4 videos?

    - by Michael Shnitzer
    Say I had 4 videos with the following names: Main Video.mov Top Left.mov Top Right.mov Top Mid.mov and I wanted to have "Main Video" play with a picture in picture effect with boxes of videos playing in the top left, top right and top mid. Each box would have the video that is similarly named. This command will do picture in picture for 2 videos, with one video in the lower right. ffmpeg -i 2013-07-31\ 231548.MOV -vf "movie=2013-07-31\ 231722.MOV, scale=iw/5:ih/5 [small]; [in][small] overlay=main_w*0.77:main_h*0.77 [out]" -strict -2 output.mov Can someone help me update this command to work with the 4 files I mentioned above? Thanks

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