Can someone please show a basic template for dealing with switching between fullscreen and windowed mode in MDX1/C#/DirectX 9. Also I'm using Tom Miller's famous render loop (http://blogs.msdn.com/tmiller/archive/2005/05/05/415008.aspx) but when I move the window around it leaves behind what has been drawn. I can also seem to access windows "through" it; the graphics of the windows behind it flicker through and I can even click on buttons from applications behind my DX application. Any ideas what might be causing this?

Thanks guys, I have the windowed/fullscreen switching working now.

I'm still having problems when in windowed mode that the rendered graphics are left when the window is moved. And that anything underneath the window can be accessed with the mouse like the window is not even there.

I'm not quite sure what you mean by "you should be able to call your Draw call from the Moving event on the forum" sirob. I have tried the following but no change:

private void MainForm_Move(object sender, EventArgs e){   this.Invalidate();   this.Refresh();}