On Tue, 08 Mar 2005 09:53:07 +0100, I wrote: > Hmm, this is about pixels that are copied from the outside of the > visible region to the inside (that area will be invalidated and > repainted if called through ScrollWindowEx, but with noticeable > flickering and there might be direct uses of ScrollDC with worse > effects). > Since the visible region did not work, I did not try adding an extra > clip region. Indeed, adding: "SelectClipRgn( hdc, visrgn);" does not > help at all. > Can the real bug perhaps be in BitBlt? >
Don't mind, I see what you mean. I have to subtract the destination region of those pixels and then clip. Rein.