System.Drawing.Font.CreateNativeFont C# (CSharp) Method

        private void CreateNativeFont(FontFamily familyName, float emSize, FontStyle style,
			GraphicsUnit unit, byte gdiCharSet, bool  gdiVerticalFont )
        {
            // convert to 96 Dpi to be consistent with Windows
            var dpiSize = emSize * dpiScale;

            try
            {
                nativeFont = new CTFont(familyName.NativeDescriptor,dpiSize);
            }
            catch
            {
                nativeFont = new CTFont("Helvetica",dpiSize);
            }

            CTFontSymbolicTraits tMask = CTFontSymbolicTraits.None;

            if ((style & FontStyle.Bold) == FontStyle.Bold)
                tMask |= CTFontSymbolicTraits.Bold;
            if ((style & FontStyle.Italic) == FontStyle.Italic)
                tMask |= CTFontSymbolicTraits.Italic;
            strikeThrough = (style & FontStyle.Strikeout) == FontStyle.Strikeout;
            underLine = (style & FontStyle.Underline) == FontStyle.Underline;

            var nativeFont2 = nativeFont.WithSymbolicTraits(dpiSize,tMask,tMask);

            if (nativeFont2 != null)
                nativeFont = nativeFont2;

            bold = (nativeFont.SymbolicTraits & CTFontSymbolicTraits.Bold) == CTFontSymbolicTraits.Bold;
            italic = (nativeFont.SymbolicTraits & CTFontSymbolicTraits.Italic) == CTFontSymbolicTraits.Italic;
            sizeInPoints = emSize;
            this.unit = unit;

            // FIXME
            // I do not like the hard coded 72 but am just trying to boot strap the Font class right now
            size = ConversionHelpers.GraphicsUnitConversion(GraphicsUnit.Point, unit, 72.0f, sizeInPoints);
        }