c#如何操做ppt的播放 【轉】

C#控制ppt的代碼

包括打開ppt文件、讀取幻燈頁，插入幻燈片，自動播放等

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文檔操做實現類.

  /// </summary>

  public class OperatePPT

  {

    #region=========基本的參數信息=======

    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===========操做方法==============

    /// <summary>

    /// 打開PPT文檔並播放顯示。

    /// </summary>

    /// <param name="filePath">PPT文件路徑</param>

    public void PPTOpen(string filePath)

    {

      //防止連續打開多個PPT程序.

      if (this.objApp != null) { return; }

      try

      {

        objApp = new POWERPOINT.Application();

        //以非只讀方式打開,方便操做結束後保存.

        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>

    /// 自動播放PPT文檔.

    /// </summary>

    /// <param name="filePath">PPTy文件路徑.</param>

    /// <param name="playTime">翻頁的時間間隔.【以秒爲單位】</param>

    public void PPTAuto(string filePath, int playTime)

    {

      //防止連續打開多個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);

      // 自動播放的代碼（開始）

      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;

      //設置翻頁的時間.

      objSST.AdvanceOnTime = OFFICECORE.MsoTriState.msoCTrue;

      objSST.AdvanceTime = playTime;

      //翻頁時的特效!

      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下一頁。

    /// </summary>

    public void NextSlide()

    {

      if (this.objApp != null)

        this.objPresSet.SlideShowｗｉｎｄｏｗ.View.Next();

    }

    /// <summary>

    /// PPT上一頁。

    /// </summary>

    public void PreviousSlide()

    {

      if (this.objApp != null)

        this.objPresSet.SlideShowｗｉｎｄｏｗ.View.Previous();

    }

    /// <summary>

    /// 對當前的PPT頁面進行圖片插入操做。

    /// </summary>

    /// <param name="alImage">圖片對象信息數組</param>

    /// <param name="offsetx">插入圖片距離左邊長度</param>

    /// <param name="pixperPoint">距離比例值</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,      //圖片路徑

             OFFICECORE.MsoTriState.msoFalse,

             OFFICECORE.MsoTriState.msoTrue,

             (float)((myobj.X - this.offsetx) / this.pixperPoint),    //插入圖片距離左邊長度

             (float)(myobj.Y / this.pixperPoint),    //插入圖片距離頂部高度

             (float)(myobj.Width / this.pixperPoint),  //插入圖片的寬度

             (float)(myobj.Height / this.pixperPoint)  //插入圖片的高度

           );

        }

        InsertSlide = true;

      }

      return InsertSlide;

    }

    /// <summary>

    /// 計算InkCanvas畫板上的偏移參數，與PPT上顯示圖片的參數。

    /// 用於PPT加載圖片時使用

    /// </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>

    /// 關閉PPT文檔。

    /// </summary>

    public void PPTClose()

    {

      //裝備PPT程序。

      if (this.objPresSet != null)

      {

        //判斷是否退出程序,能夠不使用。

        //objSSWs = objApp.SlideShowｗｉｎｄｏｗs;

        //if (objSSWs.Count >= 1)

        //{

          if (MessageBox.Show("是否保存修改的筆跡!", "提示", MessageBoxButton.OKCancel) == MessageBoxResult.OK)

            this.objPresSet.Save();

        //}

        //this.objPresSet.Close();

      }

      if (this.objApp != null)

        this.objApp.Quit();

      GC.Collect();

    }

    #endregion

  }

}

 

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