Class Libraries & REST APIs for the developers to manipulate & process Files from Word, Excel, PowerPoint, Visio, PDF, CAD & several other categories in Web, Desktop or Mobile apps. Develop & deploy on Windows, Linux, MacOS & Android platforms.... // 实例化一个表示演示文稿文件的 Presentation 对象 auto pres = System ::...:: MakeObject < Presentation > ( u "demo.pptx" ); pres -> get_ViewProperties...