EndPaint function Null safety
The EndPaint function marks the end of painting in the specified window. This function is required for each call to the BeginPaint function, but only after painting is complete.
BOOL EndPaint( HWND hWnd, const PAINTSTRUCT *lpPaint );
int EndPaint(int hWnd, Pointer<PAINTSTRUCT> lpPaint) => _EndPaint(hWnd, lpPaint);