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.Forms;using System.IO;using System.ComponentModel;using System.Data;using System.Drawing;namespace pptWrite{    /// <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;        #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();                objApp.Visible = OFFICECORE.MsoTriState.msoTrue;                //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);            }            catch (Exception ex)            {                MessageBox.Show("错误:" + ex.Message.ToString());                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)                try                {                    this.objPresSet.SlideShowWindow.View.Next();                }                catch                { }        }        /// <summary>        /// PPT上一页。        /// </summary>        public void PreviousSlide()        {            if (this.objApp != null)                this.objPresSet.SlideShowWindow.View.Previous();        }        private int PageNum()        {            return objPresSet.Slides.Count;         }        public void SetLine()        {            int num = PageNum();            for (int i = 0; i < num; i++)            {                if (i > 2)                {                    objSldRng= objPresSet.Slides.Range(i);                    objSldRng.Select();                    try                    {                        objSldRng.Application.ActiveWindow.Selection.SlideRange.Shapes.SelectAll();                        objSldRng.Application.ActiveWindow.Selection.ShapeRange.Line.Visible = OFFICECORE.MsoTriState.msoFalse;                    }                    catch                    { }                    //MessageBox.Show("" + i.ToString());                    //NextSlide();                }            }        }        /// <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", MessageBoxButtons.OKCancel) == DialogResult.OK)                this.objPresSet.Save();                //}                //this.objPresSet.Close();            }            if (this.objApp != null)                this.objApp.Quit();            GC.Collect();        }        #endregion    }}

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;namespace pptWrite{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        private void button1_Click(object sender, EventArgs e)        {            ylbasicpub.YLCover.selectfilename(this.textBox1, "*.ppt|*.ppt");        }        private void Form1_Load(object sender, EventArgs e)        {            ylbasicpub.YLCover.loadXml(this);        }        private void Form1_FormClosed(object sender, FormClosedEventArgs e)        {            ylbasicpub.YLCover.SaveXml(this);        }        private void button2_Click(object sender, EventArgs e)        {            OperatePPT pOperatePPT = new OperatePPT();            pOperatePPT.PPTOpen(this.textBox1.Text);            pOperatePPT.SetLine();            //pOperatePPT.PPTClose();                    }    }}