## StreamFontSource class Base class for user-defined stream font Source. To learn more, visit the [Working with Fonts](https://docs.aspose.com/words/cpp/working-with-fonts/) documentation article.......for user-defined stream font source. To learn more, visit the [Working.../get_cachekey/)() const | The key of this source in the cache. | | [get_IsEmbedded](...