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  • How is the default constructor of System.Drawing.Graphics removed?

    - by Albert Iordache
    When I try to create an object of Graphics, why doesn't the following work? System.Drawing.Graphics graphicsObj = new System.Drawing.Graphics(); (I am aware that I could create a private System.Windows.Forms.Panel Obj; and then do CreateGraphics() if I wanted it to work) I tried to find a custom constructor for Graphics, but I couldn't find one. Where did Microsoft define it, or how did it block it?

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  • Which technology(s) / language(s) to write linux web application/service? [closed]

    - by Lee Tickett
    I am currently playing with some open source home automation software www.domotiga.nl The software is built in Gambas2 (a graphical programming language similar to visual basic). I am considering building something similar or porting domotiga to a server based application/service. The application would need a web front end and i will likely be developing in debian (arm). But i'm not sure if php or python are suitable for server based applications which need to be always running (collecting data etc) rather than just running when accessed. Which technology(s) / language(s) would you suggest i look into? I used to do a lot of Visual Basic, then VB.NET, now C# and have played with php a few years back- but don't really want this to sway the decision too much as i should be able to pickup whatever language if i decide to proceed.

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  • DTPicker: how to open up an control expanded (by default)?

    - by Olli
    Hi all, in my windows form (Visual C++ 6.0) I'm using an Active x control called "CDTPicker" (CDTPicker : public CWnd). My control is opened up by the click event of another button. like this (works fine): void CProducerDlg::OnSelect() { ... m_wndDatePicker.SetValue(varVariant); // hide date combo box if first entry has been chosen m_wndDate.ShowWindow(SW_HIDE); // show date picker if first entry is chosen m_wndDatePicker.ShowWindow(SW_SHOW); // open up calendar view [tbd] ... } What I need is the calendar view to open up expanded (showing the complete month). I don't find any method to do this... Who can help me? Thanks in advance Olli

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  • How can I extract data from a 3rd party application's UI controls?

    - by John MacIntyre
    In 2003 I found a little utility which allowed me to select a control (like a listview) on any application, and it would copy it's contents into the clipboard. For example, you could select the list in Windows Explorer, and all the filenames, sizes, dates, etc. would be copied for you to paste into Notepad. I don't remember the name of it, but I do remember the name was so unrelated that I could never find it when I needed it. So now, years later, I can't find it. Does anybody know of any utilities which might do this? Or possibly even the utility I'm talking about?

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  • Android phone as a dedicated device

    - by user649459
    Hi, We want to use Android mobile for dedicated application. Can somebody suggest how can we make it happen. Here are the requirement: The phone when started, should launch our application., so the user cannot launch any other application. The application will be a 1D barcode reader. The application should be live as long as the phone is up and running, user cannot close the application at all. Thanks for your help. Regards, Manish

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  • How do I use XPath with a default namespace with no prefix?

    - by Scott Stafford
    What is the XPath (in C# API to XDocument.XPathSelectElements(xpath, nsman) if it matters) to query all MyNodes from this document? <?xml version="1.0" encoding="utf-8"?> <configuration> <MyNode xmlns="lcmp" attr="true"> <subnode /> </MyNode> </configuration I tried /configuration/MyNode which is wrong because it ignores the namespace. I tried /configuration/lcmp:MyNode which is wrong because lcmp is the URI, not the prefix. I tried /configuration/{lcmp}MyNode which failed because Additional information: '/configuration/{lcmp}MyNode' has an invalid token. EDIT: I can't use mgr.AddNamespace("df", "lcmp"); as some of the answerers have suggested. That requires that the XML parsing program know all the namespaces I plan to use ahead of time. Since this is meant to be applicable to any source file, I don't know which namespaces to manually add prefixes for. It seems like {my uri} is the XPath syntax, but Microsoft didn't bother implementing that... true?

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  • Which is better Span that runat server or default asp lable ?

    - by Space Cracker
    I have a simple asp.net web page that contain a table with about 5 TR and each row have 2 TD .. in the page load I get user data ( 5 property ) and view them in this page the following are first 2 rows : <table> <tr> <td> FullName </td> <td> <span id="fullNameSpan" runat="server"></span> </td> </tr> <tr> <td> Username </td> <td> <span id="userNameSpan" runat="server"></span> </td> </tr> </table> I always used <asp:Label to set value by code but i always notice that label converted in runtime to span so i decided to user span by making him runat=server to be accessed by code, so Which is better to use asp:label or span with runat=server ??

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  • How failover should work in IIS cluster with Application Request Routing?

    - by username
    I have set up several servers with IIS and connected them to the load balancer - server with installed IIS Application Request Routing. I have created a server farm and added two servers. Then I stopped IIS on the first server and tried to open my web site. It returned me an error: 502 - Web server received an invalid response while acting as a gateway or proxy server. But if instead of stopping IIS I shut down the first server, I'm getting a response from the next server which is online. The question is, what the expected behaviour should be for failover with ARR, should it switch me to the next server if IIS is stopped and server is online?

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  • How to stop an activity with GL view. Application not responding

    - by David
    I have an activity that I want to programmatically stop after some elapsed time. I have a GL view running. My understanding is that the GLSurfaceView.renderer is running in its own thread, so I created a handler instantiated from the activity. In the GLSurfaceView I post a message. The handler then attempts to stop the activity with the following: onStop(); finish(); The activity seems to close. However, if I try to restart the application, I get a blank screen, the phone is practically locked up and eventually I get a message that the activity in the application is not responding. I'm also getting geting a wake lock, ie PowerManager.newWakeLock(...). When I try to release it, I get an exception. Not sure if its the GL view of the wake lock which is causing me troubles. Any ideas appreciated.

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  • How to add ONLY system tray icon to application?

    - by badpanda
    I am developing an application that will be running behind the scenes in Windows and would like to put an icon in the system tray for troubleshooting purposes (simple way for users to tell if the app is running). There is no other UI for the application, and the icon does not need to have any functionality as of right now. All of the solutions I have found as of yet involve creating a form. I am wondering if there is a way to simply add a class to my current C# code that allows me to control the icon, rather than doing the whole 'make a form, set it to be invisible....' nonsense that seems to be the popular suggestion on the forums. Something along the lines of the way that UI control is done in say, Swing for Java. I would really appreciate any ideas! (Sorry if this is a n00b question...I haven't used C# before...) Thanks! badPanda

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  • Save application preferences... registry/file?

    - by spender
    Where is the best place to store application preferences? In particular, I'd like to save preferences for a media player such as volume levels and the like. Two candidates spring to mind... file and registry. Which would be more appropriate? As a follow up to this, I'm also wondering if there are any APIs that aid in creating application specific settings. Unless someone advises me that this is wrong, I'd like to save stuff either in HKCU... or HKLM/Software/MyCompanyName/MyAppName/Key for the registry, or in %APPDATA\MyCompanyName\MyAppName\someTypeOfSettingsFile. As these seem to be commonly used for such settings, I'd assume that .Net makes it easy to store settings in these locations. Is there a simple high level API that can .Net offer me to read and write settings to these common locations?

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  • How can Perl's print add a newline by default?

    - by Mike
    In Perl most of my print statements take the form print "hello." . "\n"; Is there a nice way to avoid keeping all the pesky "\n"s lying around? I know I could make a new function such as myprint that automatically appends \n, but it would be nice if I could override the existing print.

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  • How can I notify an application of a programmatically set scrollbar value?

    - by Frerich Raabe
    My code involves standard Scroll Bar control and it happens that I need to change its value programmatically in some cases. I do this using SetScrollInfo function, as in this example: void setScrollBarValue( HWND scrollBar, int value ) { SCROLLINFO si = { sizeof( SCROLLINFO ); } si.fMask = SIF_POS; si.nPos = value; ::SetScrollInfo( scrollBar, SB_CTL, &si, true /* redraw */ ); } This appears to work fine (the thumb of the scrollbar moves around) but it fails to notify the rest of the application of the new scrollbar value. For instance, an edit control which uses the scroll bar (much like in the Windows notepad application) fails to scroll around because it doesn't get notified about the new scrollbar value. In case it matters: the scrollbar I'm modifying is not in the same process as the above setScrollBarValue function. Does anybody know how to achieve this?

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  • Is it possible to change the default InputView in MonoTouch?

    - by Pwninstein
    I would like to display a different view than the standard keyboard (a picker control, or a date picker, for example) when a text field becomes first responder (i.e. gets focus). This would be really nice, because currently I'm pushing a custom view which contains my picker control onto the navigation stack where the user chooses an option, and then hits an OK or Cancel button. According to the documentation for UITextField.InputView: Assigning a custom view to this property causes that view to be presented instead. But, It's read only!!! Is there a workaround for this? Do I need to implement a custom UITextField control and somehow override the InputView property? Do I need to call some kind of native function? I'd really love not to have to do either of those things... but if I have to, so be it. Thanks in advance!

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  • Connection between Windows Web Server in DMZ and Windows Application Server and MS SQL Database Server within LAN [closed]

    - by user1345260
    Excuse me for being naive. But I'm a newbie. We have a Windows Web Server within DMZ and a Windows Application Server and MS SQL Database Server. What ports do we open for connection between them? For example: Someone opens the Data Driven Website on the Web Server and they should be able see the data that the website is trying to access from the Database. Currently, I'm planning to open the following ports on the Web Server to establish the access, 80 HTTP 443 HTTPS 21 FTP 3389 RDP 53 DNS 1433 MS SQL Server Please validate my assumption. I would highly appreciate your help. Also, please provide me any articles on this topic so that I can read.

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  • What is the easiest way to deploy a MVC2 application from Visual Studio 2010 to IIS 7.5?

    - by Richard
    I´ve tried a couple of different ways to deploy a application to a IIS 7.5 running on my machine for testing purposes and i´ve sort of hit a wall. Nothing works out of the box. Everything assumes I have knowledge I don't have and would prefer not to have to aqquire. Google isn't really helping either with answers ranging from "copy files by hand" to "install teamcity and set it up for CI". I have set up TeamCity for java projects before and it's really over kill for my needs at the moment. So anyone know of a fast, simple and easy way to deploy a application during testing/building?

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  • Windows fonts not immediately useable in application after installing?

    - by Jappie
    Whenever I install a new font on a Windows 2003 server, I can't use it immediately in my asp.net web application. The application gets the font through the CreateFontIndirect gdi32.dll win api. It seems like fonts get cached somewhere, because I will just get the default font returned. The font cache gets updated after a reboot, and then I get the correct font, but obviously I wouldn't like to do a reboot on a production server just for getting a new font to work. Is there a way to flush the font cache?

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  • When should one let an application crash because of an exception in Java (design issue)?

    - by JVerstry
    In most cases, it is possible to catch exceptions in Java, even unchecked ones. But, it is not necessarily possible to do something about it (for example out of memory). For other cases, the issue I am trying to solve is a design principle one. I am trying to set-up a design principle or a set of rules indicating when one should give up on an exceptional situation, even if it is detected in time. The objective is trying to not crash the application as much as possible. Has someone already brainstormed and communicated about this? I am looking for specific generic cases and possible solutions, or thumb-rules. UPDATE Suggestions so far: Stop running if data coherency can be compromised Stop running if data can be deleted Stop running if you can't do anything about it (Out of memory...) Stop running if key service is not available or becomes unavailable and cannot be restarted If application must be stopped, degrade as gracefully as possible Use rollbacks in db transactions Log as much relevant information as you can Notify the developers

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  • In django, how can I include some default records in my models.py?

    - by kdt
    If I have a models.py like class WidgetType(models.Model): name = models.CharField(max_length=200) class Widget(models.Model): typeid = models.ForeignKey(WidgetType) data = models.CharField(max_length=200) How can I build in a set of built in constant values for WidgetType when I know I'm only going to have a certain few types of widget? Clearly I could fire up my admin interface and add them by hand, but I'd like to simplify configuration by having it built into the python.

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