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comctl32/imagelist: Clear pixels that fall outside the mask when generating an alpha channel.

This commit is contained in:
Alexandre Julliard 2010-05-19 20:11:48 +02:00
parent 9479fbfd34
commit 8f1853a309
1 changed files with 2 additions and 0 deletions
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2
dlls/comctl32/imagelist.c
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@ -205,6 +205,8 @@ static BOOL add_with_alpha( HIMAGELIST himl, HDC hdc, int pos, int count,
for (j = n * width; j < (n + 1) * width; j++)
if (!mask_bits || !((mask_bits[i * mask_width + j / 8] << (j % 8)) & 0x80))
bits[i * bm.bmWidth + j] |= 0xff000000;
else
bits[i * bm.bmWidth + j] = 0;
if (hdcMask) StretchBlt( himl->hdcMask, pt.x, pt.y, himl->cx, himl->cy,
hdcMask, n * width, 0, width, height, SRCCOPY );
}