Windows: Getting glyph outlines for substitution characters from other fonts

I need to render fonts into a 3d game world, so I use the GetGlyphOutline outline function to get the glyph shapes to render into a texture. However, I want to be able to handle the case where characters are not present in the given font (as is often the case for asian other other international text). Windows text rendering will automatically sub开发者_如何学运维stitute fonts which have the needed characters. But GetGlyphOutline will not. How can I detect this case, and get the outlines for the substituted glyphs? Mac OS X Core Text has a function to get a matching substitution font for a given font and a string - is there anything similar on windows?

Found out what I needed to know myself: The IMLangFontLink interface, especially the MapFont method contain the needed functionality to find out which substitution fonts should be used on windows.

I too have puzzled with GetGlyphOutline. I'm not sure if you were able to do the same, but I was able to get mixed-script text outlines by using TextOut() in combination with BeginPath(), EndPath() and GetPath().

For example, even with the Arial font, I am able to get the path of the Japanese text 「テスト」 (using C++, but can easily be done in C as well):

SelectObject(hdc, hArialFont);
BeginPath(hdc);
TextOut(hdc, 100, 100, L"\u30c6\u30b9\u30c8"); // auto font subbing
EndPath(hdc);

// get number of points in path
int pc = GetPath(hdc, NULL, NULL, 0);

if (pc > 0)
{
    std::vector<POINT> points(pc);
    std::vector<BYTE> types(pc); // PT_MOVETO, PT_LINETO, PT_BEZIERTO

    GetPath(hdc, &points[0], &types[0], pc);

    // it seems the first four points are the bounding rect
    // subsequent points match up to their types

    for (int i = 4; i < pc; i++)
    {
        if (types[i] == PT_LINETO)
            LineTo(hdc, points[i].x, points[i].y); // etc
    }
}