public abstract CachedGlyphInfo this[Glyph glyph] { get; }
public abstract void Add(Glyph glyph, IGlyphRasterizer rasterizer, TextQuality quality);
public abstract bool Contains(Glyph glyph);
public Bitmap Rasterize(Glyph glyph) { return(Rasterize(glyph, TextQuality.Default)); }