KB117500 - INFO: Using Accelerators with an MFC Modeless Dialog Box

Article ID: 117500

Article Last Modified on 11/21/2006

Microsoft Foundation Class Library 4.2, when used with:
- Microsoft Visual C++ 1.0 Professional Edition
- Microsoft Visual C++ 1.5 Professional Edition
- Microsoft Visual C++ 1.51
- Microsoft Visual C++ 1.52 Professional Edition
- Microsoft Visual C++ 1.0 Professional Edition
- Microsoft Visual C++ 2.0 Professional Edition
- Microsoft Visual C++ 2.1
- Microsoft Visual C++ 4.0 Standard Edition

This article was previously published under Q117500

SUMMARY

To use accelerators with a modeless dialog box, override the PreTranslateMessage()function in your derived CDialog class.

MORE INFORMATION

To use accelerators with your modeless dialog box, perform the following steps:

Create a modeless dialog box. For additional information, please see the following article in the Microsoft Knowledge Base:
103788 Creating a Modeless Dialog Box with MFC Libraries

Insert this sample code into the files listed above the code:

   // .h file with your derived CDialog class.
   class CModeless : public CDialog
   {
      .
    public:
      virtual BOOL PreTranslateMessage(MSG*);
      .
   };

   //.cpp file.
   BOOL CModeless::PreTranslateMessage(MSG* pMsg)
   {
      HACCEL hAccel =
      ((CMainFrame*)AfxGetApp()->m_pMainWnd)->GetAccelTable();
      if(!(hAccel &&
           ::TranslateAccelerator(AfxGetApp()->m_pMainWnd->m_hWnd, hAccel,
                                  pMsg)))
           return CDialog::PreTranslateMessage(pMsg);
      else
         return TRUE;
   }

   // Mainfrm.h file, where CMainFrame is the main window class.
   HACCEL CMainFrame::GetAccelTable() { return m_hAccelTable; }

Create the accelerators with App Studio, or with Resource View from the Project Workspace in Visual C++ 32-bit Edition, version 4.0. The accelerators should be in the IDR_MAINFRAME accelerator table. They should also have the same ID as the controls or menu items with which they are associated.

Additional query words: kbinf 1.00 1.50 1.51 1.52 2.00 2.10 2.50 2.51 2.52 3.00 3.10 4.00

Keywords: kbinfo kbuidesign kbarchitecture kbkeyaccel kbdlg kbacceleratorkey KB117500