[Bug 54906] Menu items with icons are drawn with black squares if Wine is running in Vista+ mode

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=54906

--- Comment #3 from George Hazan  ---
Well, imho I've found the root of problems.

In Miranda's console output there're a lot of lines like
> 011c:fixme:uxtheme:BeginBufferedPaint painting parameters are ignored

And inside Miranda the ICO file is converted into HBITMAP inside the following
code:

HBITMAP ConvertIconToBitmap(HIMAGELIST hIml, int iconId)
{
    if (!beginBufferedPaint) {
        HMODULE hThemeAPI = GetModuleHandleA("uxtheme.dll");
        beginBufferedPaint = (pfnBeginBufferedPaint)GetProcAddress(hThemeAPI,
"BeginBufferedPaint");
        endBufferedPaint = (pfnEndBufferedPaint)GetProcAddress(hThemeAPI,
"EndBufferedPaint");
    }

BITMAPINFO bmi = { 0 };
    bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
    bmi.bmiHeader.biPlanes = 1;
    bmi.bmiHeader.biCompression = BI_RGB;
    bmi.bmiHeader.biBitCount = 32;
    bmi.bmiHeader.biWidth = g_iIconSX;
    bmi.bmiHeader.biHeight = g_iIconSY;

HDC hdc = CreateCompatibleDC(nullptr);
    HBITMAP hbmp = CreateDIBSection(hdc, &bmi, DIB_RGB_COLORS, nullptr,
nullptr, 0);
    HBITMAP hbmpOld = (HBITMAP)SelectObject(hdc, hbmp);

BLENDFUNCTION bfAlpha = { AC_SRC_OVER, 0, 255, AC_SRC_ALPHA };
    BP_PAINTPARAMS paintParams = { 0 };
    paintParams.cbSize = sizeof(paintParams);
    paintParams.dwFlags = BPPF_ERASE;
    paintParams.pBlendFunction = &bfAlpha;

HDC hdcBuffer;
    RECT rcIcon = { 0, 0, g_iIconSX, g_iIconSY };
    HANDLE hPaintBuffer = beginBufferedPaint(hdc, &rcIcon, BPBF_DIB,
&paintParams, &hdcBuffer);
    if (hPaintBuffer) {
        ImageList_Draw(hIml, iconId, hdc, 0, 0, ILD_TRANSPARENT);
        endBufferedPaint(hPaintBuffer, TRUE);
    }

SelectObject(hdc, hbmpOld);
    DeleteDC(hdc);

return hbmp;
}

This function generates a black bitmap under Wine.