Error Creating Window Handle Win32 Exception
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Error Creating Window Handle C#
ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack error creating window handle c# solution Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How to find source for win32 exception “error creating window handle” error creating window handle sql up vote 0 down vote favorite I'm looking for a little help regarding the win32 exception "error creating window handle". From time to time our program (WinForms - C#) throws this exception and sometimes the windows even freeze, so that the users have to kick the process to be able to work again. From the many other threads regarding this problem, I know what I should be looking for,
An Error Occurred While Executing Batch Error Message Is Error Creating Window Handle
but not extactly where as our program is quite big. So I was hoping that there might be a way to restrict the codelines I have to check... Are the any tools, which can help with this exception? c# winforms winapi window-handles share|improve this question asked Oct 17 '13 at 11:22 Sue 115 add a comment| 2 Answers 2 active oldest votes up vote 0 down vote If this issue happens inside the debugger, you can set the debugger (I will assume Visual Studio as you're using C#?) to break on throwing an exception. In your case you would want to set an exception breakpoint on (I think) System.ComponentModel.Win32Exception. Again assuming Visual Studio as your IDE, on the "Debug" menu is an "Exceptions..." item. This allows you to tell the debugger to break when specific exceptions are a) thrown, or b) unhandled. Under Common Language Runtime Exceptions, expand System.ComponentModel, and enable the checkbox in the Thrown column for System.ComponentModel.Win32Exception. Then just carry on as normal. If during debugging the exception occurs, it should break into your program and allow you to see where it's happening. Edit: If you can't reproduce the problem on your development machines, see if you're able to set up the targe
handle Posted by idibiasi in Debugging, Featured on 10 31st, 2006 | no responses ------------------------ Unhandled exception Win32Exception,Error creating error creating window handle sql server management studio window handle.,System.Windows.Forms, at System.Windows.Forms.NativeWindow.CreateHandle(CreateParams cp) at System.Windows.Forms.Control.CreateHandle() at System.Windows.Forms.Control.get_Handle() vb.net error creating window handle at System.Windows.Forms.Control.CreateGraphicsInternal() at System.Windows.Forms.ThreadExceptionDialog..ctor(Exception t) at System.Windows.Forms.ThreadExceptionDialog..ctor(Exception t) at System.Windows.Forms.ThreadContext.OnThreadException(Exception t) at System.Windows.Forms.Control.WndProcException(Exception e) at
Winforms Error Creating Window Handle
System.Windows.Forms.ControlNativeWindow.OnThreadException(Exception e) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg) at System.Windows.Forms.ComponentManager. System.Windows.Forms.UnsafeNativeMethods+IMsoComponentManager. FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData) at http://stackoverflow.com/questions/19425351/how-to-find-source-for-win32-exception-error-creating-window-handle System.Windows.Forms.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context) at System.Windows.Forms.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.Run(Form mainForm) -------------------------------- This is a very boring error, it means that all the available windows handlers are finished so your application can't create new windows. The limit seems to be 1000 windows but as you can imagine http://www.aboutmydot.net/desktop-applications/debugging/unhandled-exception-win32exceptionerror-creating-window-handle.html it's really hard to think that someone could write a program that uses 1000 opened windows. The problem is that somewhere in your code you think you have closed forms and released controls but they're just hidden and continue to occupy memory and handlers. I had this problem with a software developed by my company, RYHAB Solutions, and we lost a lot of time to figure out where the problem was. At the end we understood what was going on. We had in our code something like this: public sub CloseWindow() if typeof(me) is mybaseclass then me.visible=false else me.close() end if end sub We used this sub in a base class so all the classes that hinerited by this returned "mybaseclass" when calling typeof(me). This caused all the windows to be hidden instead of closed so they occupied all the available handler
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Monday, August 27, 2007 4:17 PM Reply | Quote Answers 1 Sign in to vote 10,000. Be sure you call Dispose() on controls you remove from a form or container. Tuesday, August 28, 2007 4:43 PM Reply | Quote Moderator All replies 0 Sign in to vote It is an uncommon problem, there has never been a good diagnosis. Workarounds that have been successful in the past are changing or disabling Visual Styles and disabling the Visual Studio hosting process. Monday, August 27, 2007 8:27 PM Reply | Quote Moderator 0 Sign in to vote Unfortuneatly,