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Fixed top-down DIB handling in StretchDIBits32().

This commit is contained in:
Matthew J. Francis 1999-10-24 17:28:23 +00:00 committed by Alexandre Julliard
parent e8ffab62e8
commit ed744e787c
1 changed files with 4 additions and 3 deletions
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7
objects/dib.c
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@ -145,14 +145,15 @@ INT WINAPI StretchDIBits(HDC hdc, INT xDst, INT yDst, INT widthDst,
else { /* use StretchBlt32 */
HBITMAP hBitmap, hOldBitmap;
HDC hdcMem;
hBitmap = CreateDIBitmap( hdc, &info->bmiHeader, CBM_INIT,
bits, info, wUsage );
hdcMem = CreateCompatibleDC( hdc );
hOldBitmap = SelectObject( hdcMem, hBitmap );
/* Origin for DIBitmap is bottom left ! */
/* Origin for DIBitmap may be bottom left (positive biHeight) or top
left (negative biHeight) */
StretchBlt( hdc, xDst, yDst, widthDst, heightDst,
hdcMem, xSrc, info->bmiHeader.biHeight - heightSrc - ySrc,
hdcMem, xSrc, abs(info->bmiHeader.biHeight) - heightSrc - ySrc,
widthSrc, heightSrc, dwRop );
SelectObject( hdcMem, hOldBitmap );
DeleteDC( hdcMem );