I have a user that keeps getting this error. Is there a tool that does window handle counting that i can use to figure out why he keeps getting this error.
System.ComponentModel.Win32Exception: Error creating window handle. at System.Windows.Forms.NativeWindow.CreateHandle(CreateParams cp) at System.Windows.Forms.Control.CreateHandle() at System.Windows.Forms.Form.CreateHandle() at System.Windows.Forms.Control.get_Handle() at System.Windows.Forms.Form.ShowDialog(IWin32Window owner)
Maybe this could help:
Unhandled exception Win32Exception,Error creating window handle
on mine machine debugger is located at:
"c:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\GuiDebug\DbgCLR.exe"
The best counter I know is Taskmgr.exe. View + Select Columns and check "User objects", "Handle count" and "GDI Objects".
The generic diagnostic is that you're leaking handles and consumed 10,000 of them. Beware of a handle leak bug in .NET 2.0 SP1 and .NET 3.5's Graphics.CopyFromScreen(), fixed in 3.5 SP1.
If the Form you are creating overrides WndProc(), be careful to ensure that it always calls base.WndProc() during the window creation process.
I inadvertently omitted a call to base.WndProc() in my override, and got your stack trace.