Re: [PATCH v3 0/4] MR3657: gdiplus: GdipCreateBitmapFromHICON fixes part 2/2

[Jinoh Kang (＠iamahuman)]

Jinoh Kang (@iamahuman) commented about dlls/gdiplus/image.c:
> - screendc = CreateCompatibleDC(0);
> - GetDIBits(screendc, iinfo.hbmColor, 0, height, lockeddata.Scan0, (BITMAPINFO*)&bih, DIB_RGB_COLORS);
> -
> - if (bm.bmBitsPixel == 32)
> - bits = heap_alloc(height * stride);
> - if (!bits)
> {
> -
>    has_alpha = FALSE;
> -
> -
>    /* If any pixel has a non-zero alpha, ignore hbmMask */
> -
>    src = (DWORD*)lockeddata.Scan0;
> -
>    for (y=0; y<height && !has_alpha; y++)
> -
>        for (x=0; x<width && !has_alpha; x++)
> -
>            if ((*src++ & 0xff000000) != 0)
> -
>                has_alpha = TRUE;

We should have a test covering this so we know we don't have a regression here.