创建异形窗口

 

HRGN CreateWindowRgnFromImage( DWORD width, DWORD height, void* pData, DWORD TransColor )

{

	HRGN hWndRgn = CreateRectRgn( 0, 0, width, height );

	DWORD* p = (DWORD*)pData;

	HRGN hTempRgn = NULL;



	for( int j = width - 1; j >= 0; --j )

	{

		for( int i = 0; i < height; ++i )

		{

			if( *p++ == TransColor )

			{

				hTempRgn = CreateRectRgn( i, j, i + 1, j + 1 );

				CombineRgn( hWndRgn, hWndRgn, hTempRgn, RGN_XOR );

				DeleteObject( hTempRgn );

			}

		}

	}

	return hWndRgn;

}