private GDIFont GetFont(Font font) { GDIFont gf = null; if (!_Fonts.TryGetValue(GetFontKey(font),out gf)) { gf = new GDIFont(font.Name, font.Size, font.Bold, font.Italic, font.Underline, false); _Fonts[GetFontKey(font)] = gf; } return gf; }