AddFontHRESULT AddFont(IDWriteFontFile fontFile, uint fontFaceIndex, DWRITE_FONT_SIMULATIONS fontSimulations, DWRITE_FONT_AXIS_VALUE* fontAxisValues, uint fontAxisValueCount, DWRITE_FONT_AXIS_RANGE* fontAxisRanges, uint fontAxisRangeCount, DWRITE_FONT_PROPERTY* properties, uint propertyCount)