OLE Automation with MS Word

Environment: VC++ 6.0, NT 4.0, Win95/98

Here is a code sample of OLE Automation. The project accepts two folders as Source PATH and Destination PATH. It opens each Document file in the Source Path and Checks for bookmarks which start with P, if it finds one, it will create a new file using the bookmarked contents.

Steps:

  • Create a Dialog Project with MFC App Wizard, Tick the Automation support checkbox.
  • Open Class Wizard, Goto Automation tab,
  • Select Add Class
  • Select From a type Library
  • Select the file MSWORD*.OLD, where * can be anything depending on the Office installed on the machine.
  • From the List select the classes _Application, _Document, Documents, Bookmarks, Bookmark, Range and Selection.

  • Add two variables m_SourcePath and m_DestinationPath as CString to the EditBoxes in the Dialog.
  • In the Ellipsis1 add the following Code
    void CWord1Dlg::OnEllipsis1() 
    {
       BROWSEINFO browseInfo;
       browseInfo.hwndOwner = NULL ;
       browseInfo.pidlRoot = NULL; 
       browseInfo.lpszTitle = "Enter The Source Path";   
       browseInfo.ulFlags = 0 ; 
       browseInfo.lpfn = NULL; 
       browseInfo.lParam = 0;  
    
       LPITEMIDLIST lpItemIDList;
       if ((lpItemIDList = ::SHBrowseForFolder(&browseInfo))!= NULL)
       {
          SHGetPathFromIDList(lpItemIDList,m_SourcePath.GetBuffer(256));
          UpdateData(FALSE);
       }   
    }
    

  • In the Ellipsis2 add the following Code
    void CWord1Dlg::OnEllipsis2() 
    {
       BROWSEINFO browseInfo;
       browseInfo.hwndOwner = NULL ;
       browseInfo.pidlRoot = NULL; 
       browseInfo.lpszTitle = "Enter The Destination Path";   
       browseInfo.ulFlags = 0 ; 
       browseInfo.lpfn = NULL; 
       browseInfo.lParam = 0;  
    
       LPITEMIDLIST lpItemIDList;
       if ((lpItemIDList = 
              ::SHBrowseForFolder(&browseInfo))!= NULL)
       {
          SHGetPathFromIDList(lpItemIDList,
                              m_DestinationPath.GetBuffer(256));
          UpdateData(FALSE);
       }      
    }

  • Add the following code to the Spli Button
    void CWord1Dlg::OnSplitbutton() 
    {
       COleVariant m_True( (short)TRUE),
                           m_False((short)FALSE), 
                           m_Long((long)DISP_E_PARAMNOTFOUND, 
                           VT_ERROR);
    
       long startPos,endPos,m_LoopVar;
    
       BOOL m_FoundTheFile;
       
       CString m_FileName;
    
       UpdateData(TRUE);
       if(m_SourcePath=="" || m_DestinationPath =="")
       {
          MessageBox("Either Source Or Destination Path is Invalid",
                     "Easy Split Error",
                     MB_ICONINFORMATION);
          return;
       }
    
       _Application appObj;
    
       if(!appObj.CreateDispatch("Word.Application"))
       {
          AfxMessageBox("Coud Not Create The Application Object");
       }
    
       appObj.SetVisible(FALSE);
       Documents docsObj(appObj.GetDocuments());
       _Document docObj,tempDocObj;
       CFileFind m_FileFind;
       m_FoundTheFile = m_FileFind.FindFile(m_SourcePath+"\\*.doc");
    
       while(m_FoundTheFile)
       {
          m_FoundTheFile=m_FileFind.FindNextFile();
                docObj.AttachDispatch(docsObj.Open(
                    COleVariant(m_FileFind.GetFilePath()),
                    m_False,
                    m_False,
                    m_False,
                    m_Long,
                    m_Long,
                    m_False,
                    m_Long,
                    m_Long,
                    m_Long  ));
    
          Bookmarks m_Books(docObj.GetBookmarks());   
    
          Bookmark m_Book;
    
          Selection selObj(appObj.GetSelection());
    
          startPos=0;
          endPos=0;
    
          for(m_LoopVar=1;m_LoopVar<= m_Books.GetCount();m_LoopVar++)
          {
             startPos=endPos ;
             docObj.Activate();
             m_Book.AttachDispatch(m_Books.Item(COleVariant(m_LoopVar)));
    
             if(m_Book.GetName().GetAt(0)!='P')
                continue;
    
             endPos= m_Book.GetEnd();
             selObj.AttachDispatch(appObj.GetSelection());
             selObj.SetRange(startPos,endPos);
             selObj.Copy();
             docsObj.Add(m_Long , m_Long );
             selObj.AttachDispatch(appObj.GetSelection());
             selObj.Paste();
             tempDocObj.AttachDispatch(appObj.GetActiveDocument());
             m_FileName.Format("%s%d.doc", 
                     m_DestinationPath+"\\"+m_FileFind.GetFileTitle(),
                               m_LoopVar);
    
             tempDocObj.SaveAs( COleVariant(m_FileName), 
                                m_Long,
                                m_False,
                                COleVariant(""),
                                m_True,
                                COleVariant(""),
                                m_False,
                                m_False, 
                                m_False,
                                m_False,
                                m_False);
             selObj.Shrink();
             m_Book.DetachDispatch();
          }
       }
    
       tempDocObj.Close(m_Long,m_Long,m_Long);
       docObj.Close(m_Long,m_Long,m_Long);
       docsObj.Close(m_Long,m_Long,m_Long);
       appObj.Quit(m_Long,m_Long,m_Long);
       m_FileFind.Close();
       MessageBox( "Completed Successfully",
                   "Easy Split",
                   MB_ICONINFORMATION);
    }
    
  • Downloads

    Download demo project - 7 Kb
    Download source - 87 Kb


Comments

  • Problem running the project

    Posted by MKrizenecky on 04/20/2004 04:59am

    I get the following error message running the program, just after browsing the Source Path: The instruction at "0x631905ae" referenced memory at "0xcccccccc". The memory could not be "written". Do you know why I get this Memory Access violation message?

    • Problem running the project

      Posted by Mike Pliam on 09/29/2007 11:54pm

      Try this - it works for me in vc7.0:
      	
              char buffer[MAX_PATH];
      	BROWSEINFO browseInfo;
      	browseInfo.hwndOwner = GetParent()->GetSafeHwnd() ;
      	browseInfo.pidlRoot = NULL; 
      	browseInfo.lpszTitle = "Enter The Destination Path";   
      	browseInfo.ulFlags = 0 ; 
      	browseInfo.lpfn = NULL; 
      	browseInfo.lParam = 0;  
      	browseInfo.pszDisplayName = buffer;
      
      	LPITEMIDLIST lpItemIDList = NULL;
      	if ((lpItemIDList = SHBrowseForFolder(&browseInfo))!= NULL)
      	{
      		//SHGetPathFromIDList(lpItemIDList,m_SourcePath.GetBuffer(256));
      		SHGetPathFromIDList(lpItemIDList,m_DestinationPath.GetBuffer(256));
      		UpdateData(FALSE);
      	}

      Reply
    Reply
  • memory leak

    Posted by Legacy on 02/16/2002 12:00am

    Originally posted by: Todd Jeffreys

    void CWord1Dlg::OnEllipsis1() 
    
    {
    BROWSEINFO browseInfo;
    browseInfo.hwndOwner = NULL ;
    browseInfo.pidlRoot = NULL;
    browseInfo.lpszTitle = "Enter The Source Path";
    browseInfo.ulFlags = 0 ;
    browseInfo.lpfn = NULL;
    browseInfo.lParam = 0;

    LPITEMIDLIST lpItemIDList;
    if ((lpItemIDList = ::SHBrowseForFolder(&browseInfo))!= NULL)
    {
    SHGetPathFromIDList(lpItemIDList,m_SourcePath.GetBuffer(256));
    UpdateData(FALSE);
    }
    }

    You aren't freeing the LPITEMIDLIST returned from SHBrowseForFolder when you are done with it. Just add code like this

    LPMALLOC pMalloc;
    if (SUCCEEDED(SHGetMalloc(&pMalloc)) && pMalloc)
    {
    pMalloc->Free(lpItemIDList);
    pMalloc->Release();
    }

    Reply
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