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Fix CreateMappedBitmap for palette-less bitmaps.

This commit is contained in:
Filip Navara 2004-07-21 21:19:08 +00:00 committed by Alexandre Julliard
parent c846f88fa2
commit fb6aa772cd
1 changed files with 7 additions and 2 deletions
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9
dlls/comctl32/commctrl.c
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@ -862,7 +862,12 @@ CreateMappedBitmap (HINSTANCE hInstance, INT idBitmap, UINT wFlags,
if (lpBitmap == NULL)
return 0;
nColorTableSize = (1 << lpBitmap->biBitCount);
if (lpBitmap->biSize >= sizeof(BITMAPINFOHEADER) && lpBitmap->biClrUsed)
nColorTableSize = lpBitmap->biClrUsed;
else if (lpBitmap->biBitCount <= 8)
nColorTableSize = (1 << lpBitmap->biBitCount);
else
nColorTableSize = 0;
nSize = lpBitmap->biSize + nColorTableSize * sizeof(RGBQUAD);
lpBitmapInfo = (LPBITMAPINFOHEADER)GlobalAlloc (GMEM_FIXED, nSize);
if (lpBitmapInfo == NULL)
@ -899,7 +904,7 @@ CreateMappedBitmap (HINSTANCE hInstance, INT idBitmap, UINT wFlags,
HDC hdcDst = CreateCompatibleDC (hdcScreen);
HBITMAP hbmOld = SelectObject (hdcDst, hbm);
LPBYTE lpBits = (LPBYTE)(lpBitmap + 1);
lpBits += (1 << (lpBitmapInfo->biBitCount)) * sizeof(RGBQUAD);
lpBits += nColorTableSize * sizeof(RGBQUAD);
StretchDIBits (hdcDst, 0, 0, nWidth, nHeight, 0, 0, nWidth, nHeight,
lpBits, (LPBITMAPINFO)lpBitmapInfo, DIB_RGB_COLORS,
SRCCOPY);