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Automating MS-Office applications

, 29 Jun 2002
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This tutorial helps you to automate PowerPoint, with hints to automate other MS-Office applications

Introduction

This tutorial helps you to learn the basics of automation. With this code, you can control PowerPoint from your application. You can open PowerPoint programmatically, open any presentation, go to any slide that you want to, run the slideshow etc.

Steps to follow

By following the same steps given below, you can automate , word, excel or any Microsoft office application.

  1. Create a dialog based application and in the App-wizard's step 3 of 6, select the automation checkbox.
  2. Create buttons for Start , Run, Close, First Slide, Last Slide, Previous Slide and Next Slide functions and use the following functions accordingly.
  3. In your application's InitInstance function , add the following lines.
  4. // Initialize OLE libraries
    if (!AfxOleInit())
    {
        AfxMessageBox("Failed to initialize OLE");
        return FALSE;
    }
  5. In your dialog's class , open class-wizard , select the automation tab, select "Add Class" ... "From a type library" and select msppt8.olb from "C:\Program Files\Microsoft Office\Office\"
  6. In your header file of your dialog, include the following line.
  7. #include "msppt8.h"
  8. Add the following variables in your dialog's header file.
  9. _Application app; // app is the PowerPoint _Application object
    
    Presentations Presentations;
    _Presentation Presentation;
    
    SlideShowView View;
    
    SlideShowWindow SlideShowWindow;
    SlideShowSettings slideshow;
    Slides slides; 
    _Slide slide;
  10. To start PowerPoint, you have to write this code in the Start button's function.
  11. void CPowerPntDlg::OnBtnStart()
    {
        // Start PowerPoint and get Application object...
        if(!app.CreateDispatch("Powerpoint.Application"))
        {
            AfxMessageBox("Couldn't start PowerPoint.");
        }
        else // Make PowerPoint visible and display a message
        {
            app.SetVisible(TRUE);
            TRACE("PowerPoint is Running!");
        }
    }
  12. To open a presentation from the hard disk, add this code in the Open button's function call.
  13. void CPowerPntDlg::OnBtnOpen()
    {
        static char BASED_CODE szFilter[] = "PowerPoint Files (*.ppt)|*.ppt||";
        CFileDialog FileDlg(TRUE,"PPT",NULL,OFN_FILEMUSTEXIST|OFN_NONETWORKBUTTON
                    |OFN_PATHMUSTEXIST,szFilter);
        FileDlg.DoModal();
    
        // To get the selected file's path and name
        CString strFileName;
        strFileName = FileDlg.GetPathName();
    
        if(!strFileName.IsEmpty())
        {
            Presentations = app.GetPresentations();
            Presentation = Presentations.Open(strFileName,0,0,1);
        }
    }
  14. To close PowerPoint add this code in the Close button's function call.
  15. void CPowerPntDlg::OnBtnClose() 
    {
        if (CanExit())
            app.Quit();
    }
  16. To run the slideshow use this code in the Run button's function call
  17. void CPowerPntDlg::OnBtnRun() 
    {
        Presentations = app.GetActivePresentation();
        slides = Presentation.GetSlides(); 
        // Show the first slide of the presentation 
        slide = slides.Item(COleVariant((long)1)); 
    
        //Run the show 
        slideshow = Presentation.GetSlideShowSettings(); 
        slideshow.Run();
    }
  18. Sometimes, you might want to start all over from the first slide. To go to the first slide you can use this code.
  19. void CPowerPntDlg::OnBtnFirst() 
    {
        Presentation = app.GetActivePresentation();
        SlideShowWindow = Presentation.GetSlideShowWindow();
        View = SlideShowWindow.GetView();
        View.First();
    }
  20. And similarly, to go to the last slide
  21. void CPowerPntDlg::OnBtnLast() 
    {
        Presentation = app.GetActivePresentation();
        SlideShowWindow = Presentation.GetSlideShowWindow();
        View = SlideShowWindow.GetView();
        View.Last();
    }
  22. Now that you have the slideshow running, you would obviously want to go to the previous slide at some point of time. To do just that, you can use this code.
  23. void CPowerPntDlg::OnBtnPrevious() 
    {
        Presentation = app.GetActivePresentation();
        SlideShowWindow = Presentation.GetSlideShowWindow();
        View = SlideShowWindow.GetView();
        View.Previous();
    }
  24. Interested to go to the next slide now ? In that case, this function will help you.
    void CPowerPntDlg::OnBtnNext() 
    {
        Presentation = app.GetActivePresentation();
        SlideShowWindow = Presentation.GetSlideShowWindow();
        View = SlideShowWindow.GetView();
        View.Next();
    }

Conclusion

That's it folks . Check out the other functions available for transitions, animations etc. and you can go ahead on your own. This is the basic framework and you can see how easy it is to handle PowerPoint.  Its the same case with excel, word or any other Microsoft office application. All luck and have a great time. You can also check out http://support.microsoft.com/default.aspx?scid=kb;en-us;Q178749 for more information. I used this code to do remote PowerPoint presentations.

License

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VGirish
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Comments and Discussions

 
GeneralCCmdTarget::FromIDispatch Pinmembercotton541525-Sep-10 1:28 
QuestionCan you provide source code,thanks PinmemberJoshuaTsai7-Dec-09 0:15 
Generalwhere is ppt8.h Pinmemberfatterbetter6-Oct-08 22:58 
GeneralDynamic XML template-based PowerPointCreator in C# PinmemberElmue29-Aug-08 14:04 
Questionhow to play .ppt file in our own view? Pinmemberwlhuang15-Jun-08 18:41 
GeneralReset auto timing Pinmemberniloy12-Jun-08 3:23 
Questionhow set active printer using power point Automation Pinmembernabeel812-Sep-07 0:21 
QuestionHi All, I have to write a code in VC++ , to convert *.ppt file to *.jpg file,can you tell me how can i do it????? PinmemberSKhokalay2-Nov-06 3:06 
Generalturning on multiple monitors support in powerpoint PinmemberManoj Singh K25-Oct-06 0:22 
Questionhow to convert powerpoint office 97 to images slide show PinmemberDinh Long8-Jun-06 23:55 
Questionquestion? Pinmembershoulderlll27-Jan-05 21:41 
QuestionWhere is msppt8.h, and are there any general docs? PinmemberNightfox12-Dec-04 21:40 
AnswerRe: Where is msppt8.h, and are there any general docs? Pinmemberhawkshim14-Jun-07 16:44 
QuestionHow do I get PowerPoint to call my app? Pinmembersprezzatura30-Nov-04 11:53 
QuestionHelp me !!! How to get data from MS office documents? Pinmemberhoan_vacnew13-Jul-04 16:37 
AnswerRe: Help me !!! How to get data from MS office documents? Pinmembervishalmore19-Nov-04 23:30 
GeneralPerfect!! But, Outlook example Pinmemberd00_ape1-Jul-04 23:24 
GeneralHelp Pinmembermaxmach14-May-04 3:57 
Generallong delay in createdispatch Pinmemberrajas20-Mar-04 12:15 
Questioncannot find msppt8.h?? Pinsussxxhimanshu24-Feb-04 1:26 
GeneralHi, PinmemberNeha19-Dec-03 22:43 
GeneralUsing Word as E-mail Editor for letters PinsussDanis Soloviev24-Nov-03 0:45 
Questionhow to get the notes content of a presentation Pinmemberbernadin26-Sep-03 20:25 
GeneralRedirect the SlideShow output in PowerPoint PinmemberShane.B20-Aug-03 1:25 
Generalread and write MS Office file with out open it PinmemberRomanticHero31-Jul-03 6:09 
GeneralRe: read and write MS Office file with out open it PinmemberJisys DevTeam12-Aug-03 13:40 
GeneralRe: read and write MS Office file with out open it PinsussAnonymous27-Aug-03 3:30 
GeneralPb "Flash App Power" with my Api Pinmemberhermine45-May-03 5:43 
Question"Automation tab" in .NET? PinmemberJockeP3-Apr-03 14:10 
AnswerRe: "Automation tab" in .NET? PinmemberDaveyWavey8-Apr-03 9:11 
GeneralRe: "Automation tab" in .NET? PinmemberKevin Gutteridge16-Dec-04 22:43 
GeneralVersion??? PowerPoint 97,2000,XP .... PinsussDavid Hezky30-Sep-02 6:15 
GeneralRe: Version??? PowerPoint 97,2000,XP .... PinmemberDinh Long9-Jun-06 0:13 
QuestionHow to play ppt into a MFC view PinmemberWu Gang13-Aug-02 6:24 
AnswerRe: How to play ppt into a MFC view Pinmemberbernadin26-Sep-03 20:22 
GeneralRe: How to play ppt into a MFC view Pinmemberdexy-17-Nov-05 3:21 
GeneralRe: How to play ppt into a MFC view Pinmemberasanka_itfac16-Mar-10 23:26 
GeneralQuestion PinmemberMichael Kuelshammer29-Jun-02 7:14 
GeneralRe: Question PinmemberTony Fontenot29-Jun-02 7:59 
GeneralRe: Question PinmemberMagnus3-Dec-03 13:33 
GeneralRe: Question Pinmembervishalmore4-Aug-04 22:41 

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