ExcludeUpdateRgn function user32
The ExcludeUpdateRgn function prevents drawing within invalid areas of a window by excluding an updated region in the window from a clipping region.
int ExcludeUpdateRgn(
HDC hDC,
HWND hWnd
);
Implementation
int ExcludeUpdateRgn(int hDC, int hWnd) => _ExcludeUpdateRgn(hDC, hWnd);