public static void Run()
{
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_Rendering();
// Instantiate a Presentation object that represents a presentation file
using (Presentation presentation = new Presentation(dataDir + "HelloWorld.pptx"))
{
// Get the slide number
int firstSlideNumber = presentation.FirstSlideNumber;
// Set the slide number
presentation.FirstSlideNumber=10;
presentation.Save(dataDir + "Set_Slide_Number_out.pptx", SaveFormat.Pptx);
}
}
}