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MFC - OnKeyDown event.

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Join Date: Dec 2005

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Nedals

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MFC - OnKeyDown event.

Mar 4th, 2006

In CApplView I create a Login Form.

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 C++ Syntax (Toggle Plain Text) 
void CApplView::Login_Entry(CDC *pDC) {
  ..
  if (pUserid == NULL) {
    pUserid = new CEdit;
    pUserid->Create(WS_CHILD|WS_VISIBLE|WS_BORDER, CRect(x,y1,w,h), this, IDC_USER);
    pPasswd = new CEdit;
    pPasswd->Create(WS_CHILD|WS_VISIBLE|WS_BORDER, CRect(x,y2,w,h), this, IDC_PASS);
    pbLogin = new CButton(); pbLogin->Create("Login",WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON, CRect(x,y3,w,h), this, IDB_LOGIN);
  }
}
void CApplView::Login_Entry(CDC *pDC) {
  ..
  if (pUserid == NULL) {
    pUserid = new CEdit;
    pUserid->Create(WS_CHILD|WS_VISIBLE|WS_BORDER, CRect(x,y1,w,h), this, IDC_USER);
    pPasswd = new CEdit;
    pPasswd->Create(WS_CHILD|WS_VISIBLE|WS_BORDER, CRect(x,y2,w,h), this, IDC_PASS);
    pbLogin = new CButton(); pbLogin->Create("Login",WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON, CRect(x,y3,w,h), this, IDB_LOGIN);
  }
}

How do I add code to set the focus on pPasswd when TAB or RETN is entered in pUserid?
Something like...

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OnKeyDown (in pUserid)
  if ((char == VK_RETURN) || (char == VK_TAB)) {
    pPasswd->SetFocus();
  }
OnKeyDown (in pUserid)
  if ((char == VK_RETURN) || (char == VK_TAB)) {
    pPasswd->SetFocus();
  }

I cannot figure out how to incorporate the event in the MESSAGE MAP.

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Join Date: Jun 2005

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WolfPack

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Re: MFC - OnKeyDown event.

Mar 5th, 2006

You want to add a "Event Handler" for the event of pressing a Tab key or Return key?
What Compiler of VC are you using?

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Join Date: Dec 2005

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Nedals

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Re: MFC - OnKeyDown event.

Mar 5th, 2006

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Originally Posted by WolfPack

You want to add a "Event Handler" for the event of pressing a Tab key or Return key?

Not exactly. The event handler would be similar to that second bit of code I include above.

I can include, in my MESSAGE MAP,
ON_WM_KEYDOWN()

and write a handler function..
void CApplView::OnKeyDown (UINT nChar, UINT nRepCnt, UINT nFlags) {...}

That will work to capture a key stroke when the main window has focus. I want it to capture the key stroke when pUserid has the focus. I know I can do this by creating a new class derived from CEdit, but I thought there must be a simpler way.

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Originally Posted by WolfPack