@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$ @pinvoke=http://pinvoke.net/$$$.htm Summary: The GetUpdateRgn API This function retrieves the update region of a window by copying it into the specified region. The coordinates of the update region are relative to the upper left corner of the window; that is, they are client coordinates. !!!!C# Signature: [DllImport("user32.dll")] static extern int GetUpdateRgn(IntPtr hWnd, IntPtr hRgn, bool bErase); !!!!User-Defined Types: None. !!!!Notes: None. !!!!Tips & Tricks: Please add some! !!!!Sample Code: Please add some! !!!!Alternative Managed API: Do you know one? Please contribute it! Documentation: GetUpdateRgn@msdn on MSDN
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