本文实例讲述了C#操作PowerPoint的方法。分享给大家供大家参考。具体如下：

这里C#操作PowerPoint的基本代码，包括打开ppt文件、读取幻灯页，插入幻灯片，自动播放等

using System; using System.Collections.Generic; using System.Linq; using System.Text; using OFFICECORE = Microsoft.Office.Core; using POWERPOINT = Microsoft.Office.Interop.PowerPoint; using System.Windows; using System.Collections; using System.Windows.Controls; namespace PPTDraw.PPTOperate { /// <summary> /// PPT文档操作实现类. /// </summary> public class OperatePPT { #region=========基本的参数信息======= POWERPOINT.Application objApp = null; POWERPOINT.Presentation objPresSet = null; POWERPOINT.SlideShowWindows objSSWs; POWERPOINT.SlideShowTransition objSST; POWERPOINT.SlideShowSettings objSSS; POWERPOINT.SlideRange objSldRng; bool bAssistantOn; double pixperPoint = 0; double offsetx = 0; double offsety = 0; #endregion #region===========操作方法============== /// <summary> /// 打开PPT文档并播放显示。 /// </summary> /// <param name="filePath">PPT文件路径</param> public void PPTOpen(string filePath) { //防止连续打开多个PPT程序. if (this.objApp != null) { return; } try { objApp = new POWERPOINT.Application(); //以非只读方式打开,方便操作结束后保存. objPresSet = objApp.Presentations.Open(filePath, OFFICECORE.MsoTriState.msoFalse, OFFICECORE.MsoTriState.msoFalse, OFFICECORE.MsoTriState.msoFalse); //Prevent Office Assistant from displaying alert messages: bAssistantOn = objApp.Assistant.On; objApp.Assistant.On = false; objSSS = this.objPresSet.SlideShowSettings; objSSS.Run(); } catch (Exception ex) { this.objApp.Quit(); } } /// <summary> /// 自动播放PPT文档. /// </summary> /// <param name="filePath">PPTy文件路径.</param> /// <param name="playTime">翻页的时间间隔.【以秒为单位】</param> public void PPTAuto(string filePath, int playTime) { //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(); } /// <summary> /// PPT下一页。 /// </summary> public void NextSlide() { if (this.objApp != null) this.objPresSet.SlideShowWindow.View.Next(); } /// <summary> /// PPT上一页。 /// </summary> public void PreviousSlide() { if (this.objApp != null) this.objPresSet.SlideShowWindow.View.Previous(); } /// <summary> /// 对当前的PPT页面进行图片插入操作。 /// </summary> /// <param name="alImage">图片对象信息数组</param> /// <param name="offsetx">插入图片距离左边长度</param> /// <param name="pixperPoint">距离比例值</param> /// <returns>是否添加成功！</returns> public bool InsertToSlide(List<PPTOBJ> listObj) { bool InsertSlide = false; if (this.objPresSet != null) { this.SlideParams(); int slipeint = objPresSet.SlideShowWindow.View.CurrentShowPosition; foreach (PPTOBJ myobj in listObj) { objPresSet.Slides[slipeint].Shapes.AddPicture( myobj.Path, //图片路径 OFFICECORE.MsoTriState.msoFalse, OFFICECORE.MsoTriState.msoTrue, (float)((myobj.X - this.offsetx) / this.pixperPoint), //插入图片距离左边长度 (float)(myobj.Y / this.pixperPoint), //插入图片距离顶部高度 (float)(myobj.Width / this.pixperPoint), //插入图片的宽度 (float)(myobj.Height / this.pixperPoint) //插入图片的高度 ); } InsertSlide = true; } return InsertSlide; } /// <summary> /// 计算InkCanvas画板上的偏移参数，与PPT上显示图片的参数。 /// 用于PPT加载图片时使用 /// </summary> private void SlideParams() { double slideWidth = this.objPresSet.PageSetup.SlideWidth; double slideHeight = this.objPresSet.PageSetup.SlideHeight; double inkCanWidth = SystemParameters.PrimaryScreenWidth;//inkCan.ActualWidth; double inkCanHeight = SystemParameters.PrimaryScreenHeight;//inkCan.ActualHeight ; if ((slideWidth / slideHeight) > (inkCanWidth / inkCanHeight)) { this.pixperPoint = inkCanHeight / slideHeight; this.offsetx = 0; this.offsety = (inkCanHeight - slideHeight * this.pixperPoint) / 2; } else { this.pixperPoint = inkCanHeight / slideHeight; this.offsety = 0; this.offsetx = (inkCanWidth - slideWidth * this.pixperPoint) / 2; } } /// <summary> /// 关闭PPT文档。 /// </summary> public void PPTClose() { //装备PPT程序。 if (this.objPresSet != null) { //判断是否退出程序,可以不使用。 //objSSWs = objApp.SlideShowWindows; //if (objSSWs.Count >= 1) //{ if (MessageBox.Show("是否保存修改的笔迹!", "提示", MessageBoxButton.OKCancel) == MessageBoxResult.OK) this.objPresSet.Save(); //} //this.objPresSet.Close(); } if (this.objApp != null) this.objApp.Quit(); GC.Collect(); } #endregion } }

希望本文所述对大家的C#程序设计有所帮助。