'Get font in use when multiple font families specified in WPF

In WPF I set a style for my control so it has multiple font families specified:

<Style TargetType="{x:Type MyControl}">
    <Setter Property="FontFamily"
            Value="Helvetica, Arial, Segoe UI" />
</Style>

How can I determine which font is actually got selected and is in use for the control?

c++sharpwpfxamlfonts


Solution 1:[1]

I ended up just having to parse the FontFamily's Source property:

public static FontFamily GetFirstValid(this FontFamily fontFamily)
{
    return fontFamily?.Source.Split(',')
                     .Select(p => new FontFamily(p))
                     .FirstOrDefault(f => f.GetTypefaces()
                                           .Any(t => t.TryGetGlyphTypeface(out GlyphTypeface glyph)
                                                     && glyph?.CharacterToGlyphMap.Count > 0));
}

Sources

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Source: Stack Overflow

Solution Source
Solution 1 g t

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