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comctl32/imagelist: Initialize the mask bits to zero in case the mask bitmap is smaller than the image bitmap.

This commit is contained in:
Alexandre Julliard 2010-06-01 16:26:15 +02:00
parent d81ddde230
commit 350f0d3982
1 changed files with 2 additions and 1 deletions
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3
dlls/comctl32/imagelist.c
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@ -181,7 +181,8 @@ static BOOL add_with_alpha( HIMAGELIST himl, HDC hdc, int pos, int count,
mask_info->bmiHeader = info->bmiHeader;
mask_info->bmiHeader.biBitCount = 1;
mask_info->bmiHeader.biSizeImage = mask_width * height;
if (!(mask_bits = HeapAlloc( GetProcessHeap(), 0, info->bmiHeader.biSizeImage ))) goto done;
if (!(mask_bits = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, info->bmiHeader.biSizeImage )))
goto done;
if (!GetDIBits( hdc, hbmMask, 0, height, mask_bits, mask_info, DIB_RGB_COLORS )) goto done;
}