C#操作PowerPoint的方法

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  }}