PRB: Rich Edit Control Message Handlers Are Not Called

Steps to Reproduce Behavior

1. Use the MFC AppWizard to create a dialog-based application.
2. Drag a RichEdit control from the Controls palette onto the Dialog template using the Dialog Resource Editor.
3. Open ClassWizard, and choose IDC_RICHEDIT1 for the ObjectID. To add message handlers for the EN_SETFOCUS and the EN_KILLFOCUS messages, highlight the message and click Add Function.
4. Click OK, and look at the code. The following entry appears in the message-map if you selected EN_SETFOCUS:
   ON_NOTIFY(EN_SETFOCUS, IDC_RICHEDIT1, OnSetfocusRichedit1)
   However, this message-map entry should be:
   ON_EN_SETFOCUS(IDC_RICHEDIT1, OnSetfocusRichedit1)
   The following entry is also in the message-map if you selected EN_KILLFOCUS:
   ON_NOTIFY(EN_KILLFOCUS, IDC_RICHEDIT1, OnKillfocusRichedit1)
   However, this message-map entry should be:
   ON_EN_KILLFOCUS(IDC_RICHEDIT1, OnKillfocusRichedit1)
5. If you build and run this project to see the problematic behavior, remember to add the line AfxInitRichEdit(); in the InitInstance()

      function of the CWinApp derived class.
   						

6. You can use the default handler created by ClassWizard and add a TRACE statement. Following is an example for the EN_KILLFOCUS message:

         void CMyDialog::OnSetfocusRichedit1(NMHDR* pNMHDR, LRESULT* pResult)
         {
            TRACE("This function will never be called\n");
            *pResult = 0;
         }
   						

7. The TRACE statement does not execute when you run a Debug build.

Back to the top