DirectX Fullscreen Application: Problem with Application.DoEvents()

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Hello

I am trying to make a fullscreen DirectX application with C#. In my mainloop I call Application.DoEvents() that Windows can process the KeyEvents... If I do so, I get a "InvalidCallException". I don't have the problem when I run the application in non-fullscreen-mode.

Could anyone please help me? Many thanks in advance.

Posted 8-Jun-10 5:33am

salocinx

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Andrew Rissing · Answer 1 · 2010-06-08T06:31:00

Solution 1

Can you take out the Application.DoEvents() call and have it work in full screen?

It you can't, then you need to change your present parameters.

Ex.

C#

presentParams.Windowed = false;

See the following link[^].

It might help if you provide more information on the exception as well.

Posted 8-Jun-10 6:31am

Andrew Rissing

salocinx · Answer 2 · 2010-06-08T07:07:00

If I ommit the Application.DoEvents() call, the app is working in fullscreen mode, but the OnKeyPress(KeyPressEventArgs e) is not working anymore since windows seems not to have any resources left vor event-handling.

If I turn on the Application.DoEvents() call, I get this error-message:

Error in the application.
-2005530516 (D3DERR_INVALIDCALL)
   at Microsoft.DirectX.Direct3D.Device.Reset(PresentParameters[] presentationParameters)
   at Microsoft.DirectX.Direct3D.Device.OnParentResized(Object sender, EventArgs e)
   at System.Windows.Forms.Control.OnResize(EventArgs e)
   at System.Windows.Forms.Form.OnResize(EventArgs e)
   at System.Windows.Forms.Control.OnSizeChanged(EventArgs e)
   at System.Windows.Forms.Control.UpdateBounds(Int32 x, Int32 y, Int32 width, Int32 height, Int32 clientWidth, Int32 clientHeight)
   at System.Windows.Forms.Control.UpdateBounds()
   at System.Windows.Forms.Control.WmWindowPosChanged(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at System.Windows.Forms.ContainerControl.WndProc(Message& m)
   at System.Windows.Forms.Form.WmWindowPosChanged(Message& m)
   at System.Windows.Forms.Form.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)