You need to introduce COM components:
Project--Add Reference->com->microsoft Office object Libraty
Item--Add Reference->com->microsoft PowerPoint object Libraty
Function: Open a page of PPT
Parameters: Filepath:ppt path; PageIndex: Specifies the page number to open
<span style= "FONT-SIZE:12PX;" > private void GotoSlide (string filePath, int pageIndex) { Microsoft.Office.Interop.PowerPoint.Application pptapplication = new Microsoft.Office.Interop.PowerPoint.Application (); Open in a non-read-only manner to save after the end of the operation. Presentation pptpresentation = PPTApplication.Presentations.Open (FilePath, Msotristate.msotrue, Msotristate.msofalse, msotristate.msofalse); SlideShowSettings slideshow = pptpresentation.slideshowsettings; Slideshow.run (); PPTPresentation.SlideShowWindow.View.GotoSlide (PageIndex); } </span>
http://blog.sina.com.cn/s/blog_6b2e32770100xrlf.html
Http://outofmemory.cn/code-snippet/33373/C-operation-PowerPoint-basic-code
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C # Open PowerPoint