using?System;
using?System.Diagnostics;
using?System.Drawing;
using?System.Drawing.Imaging;
using?System.IO;
using?System.Linq;
using?System.Windows.Forms;
using?Microsoft.Office.Core;
using?PowerPoint?=?Microsoft.Office.Interop.PowerPoint;


namespace?WindowsFormsApplication1
{
????public?partial?class?Form1?:?Form
????{
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}

????????PowerPoint.PpSaveAsFileType?ppType?=?Microsoft.Office.Interop.PowerPoint.PpSaveAsFileType.ppSaveAsPNG;

????????private?void?button1_Click（object?sender?EventArgs?e）
????????{
????????????DirectoryInfo?dir?=?new?DirectoryInfo（this.textBox2.Text.Trim（））;
????????????FileSystemInfo[]?fileinfo?=?dir.GetFileSystemInfos（）;??//返回目錄中所有文件和子目錄
????????????foreach?（FileSystemInfo?i?in?fileinfo）
????????????{
????????????????if?（i?is?DirectoryInfo）????????????//判斷是否文件夾
????????????????{
????????????????????DirectoryInfo?subdir?=?new?DirectoryInfo（i.FullName）;
????????????????????subdir.Delete（true）;??????????//刪除子目錄和文件
????????????????}
????????????????else
????????????????{
????????????????????File.Delete（i.FullName）;??????//刪除指定文件
????????????????}
????????????}

????????????Convert（this.textBox1.Text.Trim（）?this.textBox2.Text.Trim（）?ppType）;
????????????string?folderPath?=?this.textBox2.Text.Trim（）;
????????????var?images?=?new?DirectoryInfo（folderPath）.GetFiles（“*.Png“?SearchOption.TopDirectoryOnly）;
????????????CombineImages（images?this.textBox2.Text.Trim（）?+?“\\FinalImage_H.png“）;
????????????GC.Collect（）;
????????????GC.WaitForPendingFinalizers（）;
????????}

????????///?

????????///?ppt轉換圖片
????????///?

????????///?
????????///?
????????///?可以切換不同類型
????????///?
????????private?bool?Convert（string?sourcePath?string?targetPath?Microsoft.Office.Interop.PowerPoint.PpSaveAsFileType?targetFileType）
????????{
????????????bool?result;
????????????object?missing?=?Type.Missing;
????????????PowerPoint.ApplicationClass?application?=?null;
????????????Microsoft.Office.Interop.PowerPoint.Presentation?persentation?=?null;
????????????try
????????????{
????????????????application?=?new?PowerPoint.ApplicationClass（）;
????????????????persentation?=?application.Presentations.Open（sourcePath?MsoTriState.msoFalse?MsoTriState.msoFalse?MsoTriState.msoTrue）;
????????????????persentation.SaveAs（targetPath?targetFileType?Microsoft.Office.Core.MsoTriState.msoFalse）;
????????????????result?=?true;
????????????}
????????????catch
????????????{
????????????????result?=?false;
????????????}
????????????finally
????????????{
????????????????if?（persentation?!=?null）
????????????????{
????????????????????persentation.Close（）;
????????????????????persentation?=?null;
????????????????}
????????????????if?（application?!=?null）
????????????????{
???????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-06-29?15:44??WindowsFormsApplication2\
?????文件?????4500480??2018-06-29?09:44??WindowsFormsApplication2\1.ppt
?????文件????????3308??2018-06-29?15:09??WindowsFormsApplication2\Form1.Designer.cs
?????文件????????5888??2018-06-29?15:40??WindowsFormsApplication2\Form1.cs
?????文件????????5817??2018-06-29?15:09??WindowsFormsApplication2\Form1.resx
?????文件?????????505??2018-06-29?09:36??WindowsFormsApplication2\Program.cs
?????目錄???????????0??2018-06-29?15:44??WindowsFormsApplication2\Properties\
?????文件????????1398??2018-06-29?09:36??WindowsFormsApplication2\Properties\AssemblyInfo.cs
?????文件????????2876??2018-06-29?10:59??WindowsFormsApplication2\Properties\Resources.Designer.cs
?????文件????????5612??2018-06-29?09:36??WindowsFormsApplication2\Properties\Resources.resx
?????文件????????1107??2018-06-29?10:59??WindowsFormsApplication2\Properties\Settings.Designer.cs
?????文件?????????249??2018-06-29?09:36??WindowsFormsApplication2\Properties\Settings.settings
?????文件????????4253??2018-06-29?15:40??WindowsFormsApplication2\WindowsFormsApplication2.csproj
?????文件?????????143??2018-06-29?09:37??WindowsFormsApplication2\WindowsFormsApplication2.csproj.user
?????文件?????????889??2018-06-29?09:37??WindowsFormsApplication2\WindowsFormsApplication2.sln
?????文件???????36352??2018-06-29?15:43??WindowsFormsApplication2\WindowsFormsApplication2.suo
?????文件?????????144??2018-06-29?10:59??WindowsFormsApplication2\app.config
?????目錄???????????0??2018-06-29?15:44??WindowsFormsApplication2\bin\
?????目錄???????????0??2018-06-29?15:44??WindowsFormsApplication2\bin\Debug\
?????文件?????4500480??2018-06-29?09:44??WindowsFormsApplication2\bin\Debug\1.ppt
?????目錄???????????0??2018-06-29?15:44??WindowsFormsApplication2\bin\Debug\2\
?????文件????14162965??2018-06-29?15:43??WindowsFormsApplication2\bin\Debug\2\FinalImage_H.png
?????文件??????150488??2018-06-29?15:42??WindowsFormsApplication2\bin\Debug\2\幻燈片1.PNG
?????文件?????1042602??2018-06-29?15:43??WindowsFormsApplication2\bin\Debug\2\幻燈片10.PNG
?????文件?????1482878??2018-06-29?15:43??WindowsFormsApplication2\bin\Debug\2\幻燈片11.PNG
?????文件??????105160??2018-06-29?15:43??WindowsFormsApplication2\bin\Debug\2\幻燈片12.PNG
?????文件??????366798??2018-06-29?15:43??WindowsFormsApplication2\bin\Debug\2\幻燈片13.PNG
?????文件???????43379??2018-06-29?15:43??WindowsFormsApplication2\bin\Debug\2\幻燈片14.PNG
?????文件???????79268??2018-06-29?15:43??WindowsFormsApplication2\bin\Debug\2\幻燈片15.PNG
?????文件???????92624??2018-06-29?15:43??WindowsFormsApplication2\bin\Debug\2\幻燈片16.PNG
?????文件??????697969??2018-06-29?15:43??WindowsFormsApplication2\bin\Debug\2\幻燈片17.PNG
............此處省略61個文件信息