c#获取播放中PowerPoint的第一个文本框内容

[{"title":"（ 22 个子文件 36KB ） c#获取播放中PowerPoint的第一个文本框内容","children":[{"title":"PPTTest","children":[{"title":"PPTTest","children":[{"title":"Form1.cs <span style='color:#111;'> 8.24KB </span>","children":null,"spread":false},{"title":"bin","children":[{"title":"Debug","children":[{"title":"PPTTest.vshost.exe <span style='color:#111;'> 5.50KB </span>","children":null,"spread":false},{"title":"PPTTest.pdb <span style='color:#111;'> 29.50KB </span>","children":null,"spread":false},{"title":"PPTTest.exe <span style='color:#111;'> 24.00KB </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"obj","children":[{"title":"PPTTest.csproj.FileListAbsolute.txt <span style='color:#111;'> 752B </span>","children":null,"spread":false},{"title":"Debug","children":[{"title":"PPTTest.pdb <span style='color:#111;'> 29.50KB </span>","children":null,"spread":false},{"title":"PPTTest.csproj.ResolveComReference.cache <span style='color:#111;'> 671B </span>","children":null,"spread":false},{"title":"PPTTest.Properties.Resources.resources <span style='color:#111;'> 180B </span>","children":null,"spread":false},{"title":"PPTTest.csproj.GenerateResource.Cache <span style='color:#111;'> 842B </span>","children":null,"spread":false},{"title":"PPTTest.Form1.resources <span style='color:#111;'> 180B </span>","children":null,"spread":false},{"title":"TempPE","children":null,"spread":false},{"title":"PPTTest.exe <span style='color:#111;'> 24.00KB </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"Properties","children":[{"title":"Resources.Designer.cs <span style='color:#111;'> 2.80KB </span>","children":null,"spread":false},{"title":"Settings.settings <span style='color:#111;'> 249B </span>","children":null,"spread":false},{"title":"Resources.resx <span style='color:#111;'> 5.48KB </span>","children":null,"spread":false},{"title":"Settings.Designer.cs <span style='color:#111;'> 1.07KB </span>","children":null,"spread":false},{"title":"AssemblyInfo.cs <span style='color:#111;'> 1.14KB </span>","children":null,"spread":false}],"spread":true},{"title":"Program.cs <span style='color:#111;'> 466B </span>","children":null,"spread":false},{"title":"Form1.Designer.cs <span style='color:#111;'> 2.58KB </span>","children":null,"spread":false},{"title":"Form1.resx <span style='color:#111;'> 5.68KB </span>","children":null,"spread":false},{"title":"PPTTest.csproj <span style='color:#111;'> 4.07KB </span>","children":null,"spread":false}],"spread":true},{"title":"PPTTest.suo <span style='color:#111;'> 13.50KB </span>","children":null,"spread":false},{"title":"PPTTest.sln <span style='color:#111;'> 910B </span>","children":null,"spread":false}],"spread":true}],"spread":true}]