Mathew Joy
November 29th, 2003, 05:08 AM
Hi all,
I was wondering if there is any differece between these two usage of bitblt, both for which the output is the same. The destination DC is the client screen while the source DC has the bitmap. The source DC is much bigger than the screen. Is there any performance difference between BitBlt(hdcClient,-10,-10,wRect.right, wRect.bottom,hdcMem,0,0,SRCCOPY);andBitBlt(hdcClient,0,0,wRect.right, wRect.bottom,hdcMem,10,10,SRCCOPY);
Thanx
I was wondering if there is any differece between these two usage of bitblt, both for which the output is the same. The destination DC is the client screen while the source DC has the bitmap. The source DC is much bigger than the screen. Is there any performance difference between BitBlt(hdcClient,-10,-10,wRect.right, wRect.bottom,hdcMem,0,0,SRCCOPY);andBitBlt(hdcClient,0,0,wRect.right, wRect.bottom,hdcMem,10,10,SRCCOPY);
Thanx