RichEdit and SetSel when tabbing

I have a dialog that has a RichEdit (called IDC_MESSAGE) in it. If there is something in the RichEdit and you tab into it, it selects everything. What I want to do is put the cursor at the beginning with nothing selected.

I know I need to use SetSel and I believe I need to set it when the RichEdit gets focus... but, can't figure out how to catch that. Looking in the ClassWizard, the only options I have for the RichEdit is the EN_SETFOCUS and NM_SETFOCUS. I tried setting both of those but neither one seems to fire when tabbing into that field.

Not sure where to go from here.

Any help is greatly appreciated....

Use SetSel(0,0) of CRichEdit Control in OnEnSetFocus function of CRichEdit Control.

Code:

---

void CMyDlg::OnEnSetfocusRicheditMessages()
{
        // TODO: Add your control notification handler code here
        m_RichEditCtrlSetSel(0,0);
}

---

I have this code working in my application. Also please make sure your have TabStop True in RichEdit control properties.

Hmmm, that's what I thought, but it still doesn't work.....

Here's what I got... I used the ClassWizard and this is what was created....

Code:

---


BEGIN_MESSAGE_MAP(CMessageDlg, CDialog)
        //{{AFX_MSG_MAP(CMessageDlg)
        ...
        ON_NOTIFY(EN_SETFOCUS, IDC_MESSAGE, OnEnSetfocusMessage)
        //}}AFX_MSG_MAP
END_MESSAGE_MAP()



void CMessageDlg::OnEnSetfocusMessage(NMHDR* pNMHDR, LRESULT* pResult)
{
        // TODO: Add your control notification handler code here
       
        m_messageCtl.SetSel(0,0);
}

---

When I tab into the IDC_MESSAGE, everything still highlights. If I put a breakpoint on the SetSel line, it never fires.


Any suggestions?

According to MSDN

Quote:

---

The EN_SETFOCUS notification message is sent when an edit control receives the keyboard focus. The parent window of the edit control receives this notification message through a WM_COMMAND message.

---

Although I have no idea why your "ClassWizard" put ON_NOTIFY macro rather then ON_COMMAND one, you could try to change it by hand.

You can try this in your code.

Code:

---

BEGIN_MESSAGE_MAP(CMessageDlg, CDialog)
        //{{AFX_MSG_MAP(CMessageDlg)
        ...
        ON_EN_SETFOCUS(IDC_RICHEDIT_YOURCONTROL,&CMessageDlg::OnEnSetfocusMessage)
        //}}AFX_MSG_MAP
END_MESSAGE_MAP()

void CMessageDlg::OnEnSetfocusMessage()
{
        // TODO: Add your control notification handler code here
       
        m_messageCtl.SetSel(0,0);
}

---

THANKS!!!

That worked!! Got a love it when things don't work as they are SUPPOSE too!!

WHOOPS!!! Thought it was working. Then it compiled it and ran the EXE and it crashes.

First off, I had to modify this line to get it to compile correctly:

Code:

---

ON_EN_SETFOCUS(IDC_RICHEDIT_YOURCONTROL,&CMessageDlg::OnEnSetfocusMessage)

---

to

Code:

---

ON_EN_SETFOCUS(IDC_RICHEDIT_YOURCONTROL,OnEnSetfocusMessage)

---

I got a compile error (actually 6) because of this one line....

Code:

---

C:\myapp\MessageDlg.cpp(71) : error C2059: syntax error : '&&'
C:\myapp\MessageDlg.cpp(71) : error C2143: syntax error : missing ';' before '}'
C:\myapp\MessageDlg.cpp(71) : error C2143: syntax error : missing ';' before '}'
C:\myapp\MessageDlg.cpp(74) : error C2143: syntax error : missing ';' before '{'
C:\myapp\MessageDlg.cpp(74) : error C2447: missing function header (old-style formal list?)
C:\myapp\MessageDlg.cpp(74) : error C2143: syntax error : missing ';' before '}'

---

The modified one worked when stepping and debugging, but when compiled the whole app crashed. If I take this out, it no longer crashes (but of course doesn't work).

Any suggestions?

Indeed, for rich-edit control, VS6 Class Wizard shows both EN_SETFOCUS and NM_SETFOCUS in the list, although Rich-edit 1.0 which can be taken from VS6 toolbox, sends only EN_SETFOCUS (at least according to the documentation).
Moreover, it maps both notifications using ON_NOTIFY macro, which is not correct.
Let's take it as a little bug. If you still are using old VS6.0, then map manually the rich-edit control notifications. That's it.

Beware of the message handlers prototype! VS6 performs C-style cast when uses function pointers involved in message mapping. If you manually provide a wrong prototype, let's say void OnSetfocusSomeCtrl(NMHDR* pNMHDR, LRESULT* pResult) the program compiles but may crash at run-time (it crashes for sure in release build). Newer versions of Visual Studio resolved this issue by making static_cast.

Putting all together, including the advices of my colleagues, the following sample must compile, run and work with no problems:

Code:

---

class CMyDialog : public CDialog
{
  // ...
  CRichEditCtrl m_richeditTest;
  // ...
  // ...
  afx_msg void OnSetfocusRichEditTest();
  DECLARE_MESSAGE_MAP()
};

---

Code:

---

void CMyDialog::DoDataExchange(CDataExchange* pDX)
{
  // ...
  // ...
  DDX_Control(pDX, IDC_RICHEDIT_TEST, m_richeditTest);
  //}}AFX_DATA_MAP
}
  // ...
  // ...
  ON_EN_SETFOCUS(IDC_RICHEDIT_TEST, OnSetfocusRichEditTest)
END_MESSAGE_MAP()

void CMyDialog::OnSetfocusRichEditTest()
{
  m_richeditTest.SetSel(0, 0);
}

---

Of course, must not forget to call AfxInitRichEdit in InitInstance of aplication (derived from CWinApp) class.

Thank you, that fixed the bug.