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public void PPTAuto(string filePath, int playTime) //输入要播放的ppt文件和播放间隔时间
{
//防止连续打开多个PPT程序.
if (this.objApp != null)
{ return; }
objApp = new POWERPOINT.Application();
objPresSet = objApp.Presentations.Open(filePath, OFFICECORE.MsoTriState.msoCTrue, OFFICECORE.MsoTriState.msoFalse, OFFICECORE.MsoTriState.msoFalse);
// 自动播放的代码(开始)
int Slides = objPresSet.Slides.Count;
int[] SlideIdx = new int[Slides];
for (int i = 0; i < Slides; i++)
{ SlideIdx[i] = i + 1; };
objSldRng = objPresSet.Slides.Range(SlideIdx);
objSST = objSldRng.SlideShowTransition;
//设置翻页的时间.
objSST.AdvanceOnTime = OFFICECORE.MsoTriState.msoCTrue;
objSST.AdvanceTime = playTime;
//翻页时的特效!
objSST.EntryEffect = POWERPOINT.PpEntryEffect.ppEffectCircleOut;
//Prevent Office Assistant from displaying alert messages:
bAssistantOn = objApp.Assistant.On;
objApp.Assistant.On = false;
//Run the Slide show from slides 1 thru 3.
objSSS = objPresSet.SlideShowSettings;
objSSS.StartingSlide = 1;
objSSS.EndingSlide = Slides;
objSSS.Run();
//Wait for the slide show to end.
objSSWs = objApp.SlideShowWindows;
while (objSSWs.Count >= 1) System.Threading.Thread.Sleep(playTime * 100);
this.objPresSet.Close();
this.objApp.Quit();
}