MFC控制：实现打开PPT详细步骤

港控/mmm° 2022-06-13 08:48 211阅读 0赞

![20170703142934553][]![20170703142939253][]

其余选择默认，一直“下一步”即可。

为了使用PPT功能，添加类

![20170703142944053][]![20170703142948372][]

不知道生成哪些类，可全部生成。之后将主要用到以下几类

![20170703142952713][]

把以上需要用到的头文件添加到工程的头文件中，并且要把以上添加的每个头文件的import注释掉，如CApplication.h

// Machine generated IDispatch wrapper class(es) created with Add Class from Typelib Wizard
    // #import "D:\\Program Files\\Microsoft Office\\OFFICE11\\MSPPT.OLB" no_namespace
    // CApplication wrapper class

在应用程序DetectDlg.cpp的InitInstance()中初始化OLE和创建PowerPoint接口对象，代码如下：

// Initialize OLE libraries
    if (!AfxOleInit())
    {
    AfxMessageBox("Failed to initialize OLE");
    return FALSE;
    }
    //Start PowerPoint and get Application object...
    if (!app.CreateDispatch("Powerpoint.Application"))
    {
    AfxMessageBox("Couldn't start PowerPoint.");
    return FALSE;
    }

在对话框应用程序的头文件中添加如下头文件和变量

#include "CApplication.h"
    #include "CPresentation.h"
    #include "CPresentations.h"
    #include "CSlideShowView.h"
    #include "CSlideShowWindow.h"
    #include "CSlideShowSettings.h"
    #include "CSlides.h"
    #include "CSlide.h"
     
    public:
    CApplication app;
    CPresentation presentation;
    CPresentations presentations;
    CSlideShowView slideShowView;
    CSlideShowWindow slideShowWindow;
    CSlideShowSettings slideShowSettings;
    CSlides slides;
    CSlide slide;

添加一个按钮，在其click函数中添加代码

// Make PowerPoint visible and display a message
    app.put_Visible(TRUE);
     
    // 有时候为了ppt不影响程序,会设置启动大小
    // app.put_Width(100);
    // app.put_Height(100);
     
    两种打开文件方法
    //实现1.生成选择ppt文件对话框
    /*CString strFilter = "PowerPoint Files (*.ppt;*.pptx)|*.ppt;*.pptx|All Files(*.*)|*.*||";
    CFileDialog FileDlg(TRUE, "PPT", NULL, OFN_FILEMUSTEXIST | OFN_NONETWORKBUTTON
    | OFN_PATHMUSTEXIST, strFilter);
    FileDlg.DoModal();
    // To get the selected file's path and name
    CString strFileName;
    strFileName = FileDlg.GetPathName();*/
    //实现2.直接选择需要打开的ppt文件
    CString strFileName("H:\\SpotDetect\\Detect\\Test.ppt");
    //
    if (!strFileName.IsEmpty())
    {
    presentations = app.get_Presentations();
    presentation = presentations.Open(strFileName, 0, 0, 1);//打开相应ppt文件
    }
     
    presentations = app.get_ActivePresentation();
    slides = presentation.get_Slides();
    // Show the first slide of the presentation
    slide = slides.Item(COleVariant((long)1));
    //运行这个演示
    Sleep(2000);
    slideShowSettings = presentation.get_SlideShowSettings();
    slideShowSettings.Run();
    //这里可以改变ppt大小
    /*slideShowWindow = presentation.GetSlideShowWindow();
    slideShowWindow.SetWidth(100);
    slideShowWindow.SetHeight(100);*/
     
    //关闭PPT
    //presentation = app.get_ActivePresentation();
    //presentation.Close();

这样就可以成功打开一个ppt文件了。

之后将更新对PPT文件的操作和项目中的交互操作。

[20170703142934553]: https://img-blog.csdn.net/20170703142934553
[20170703142939253]: /images/20220613/acec80c24f224351a6e7c6f182062bde.png
[20170703142944053]: https://img-blog.csdn.net/20170703142944053
[20170703142948372]: /images/20220613/25e2bfaa789e416aaac95e5a1a7065ae.png
[20170703142952713]: /images/20220613/6ef4a6c4ad7d41cf80a0cc754f87365e.png