[RESOLVED] on regions (HRGN)

[andrey_zh]

Hello!

I'm creating a window of arbitrary shape and have some questions about regions. ( I assume they could be generalized to objects. )

Particularly:

1)

{
            register HRGN hRgn = CreateRectRgn( tail, row, head, row+1 );

            CombineRgn( hRegion,
                        hRegion,
                        hRgn,
                        RGN_OR
                       );

            DeleteObject( hRgn ); // I do not use hRgn any more. Could(or should) I delete it?
}

2) May/Must/Should I delete a region passed to SetWindowRgn(), if I do not need it any more, but window still exists?

3) I have a function HRGN build_region( HBITMAP hBitmap, COLORREF rgbTransparent ). It builds a region on basis of the bitmap, only non-rgbTransparent pixels form a region. I'm not a native English speaker. Are the names of identifiers correct?