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;
}