Re: Tooltips don't work for CEdit controls

From:
"Drew" <dam@dam.dam>
Newsgroups:
microsoft.public.vc.mfc
Date:
Wed, 13 Jun 2007 15:21:45 -0500
Message-ID:
<eUyt2hfrHHA.532@TK2MSFTNGP06.phx.gbl>
In header:

 afx_msg BOOL GetToolTip(UINT id, NMHDR *pTTTStruct, LRESULT *pResult);
 DECLARE_MESSAGE_MAP()

You need this in your message map:

BEGIN_MESSAGE_MAP(CGeometryPage, CPropertyPage)
ON_NOTIFY_EX(TTN_NEEDTEXT, 0, GetToolTip)
END_MESSAGE_MAP()

Function implementation:

BOOL CMyDialog::GetToolTip(UINT id, NMHDR *pNMHDR, LRESULT *pResult)
{
 TOOLTIPTEXT *pTTT = (TOOLTIPTEXT *)pNMHDR;
 UINT nID = pNMHDR->idFrom;
 if (pTTT->uFlags & TTF_IDISHWND)
 {
  // idFrom is actually the HWND of the tool
  nID = ::GetDlgCtrlID((HWND)nID);
  switch(nID){
   case IDC_MY_EDIT:
    // Use whatever method you wish to get the string into pTTT->szText
    strcpy(pTTT->szText, "My tooltip");
    pTTT->hinst = NULL;
    return(TRUE);
   break;
  }
 }

 return(FALSE);
}

Drew

"maple02" <maple02@discussions.microsoft.com> wrote in message
news:D5D5D78F-68A5-4EFE-A277-4DB0404E44EF@microsoft.com...

Hi, I'm using VC++ in VStudio 2005. Inside my dialog of CDialog base
type,
I'm dynamically (programmatically) creating several child edit controls of
my
own type (CSendchk) based on CEdit. These edit controls look and function
perfectly within the parent dialog.

I would like to display a tooltip when mouse hovers over any of those edit
controls. So, as the help reference guide suggests, I added a call to
EnableToolTips(TRUE) inside my InitDialog() method and hook the
notification
with my override CSendchk:OnToolTipNotify().

As expected, I do receive the notification for my OK and Cancel buttons,
so
the tooltip notification system apparently works. However, I receive none
for any of my edit controls.

Anyone know why?

My edit control creation code is:

for ( int iCnt=0; i<10; iCnt++ )
{
  (control positioning code here)

  m_pedtCells[iCnt] = new CEditchk();

  m_pedtCells[iCnt]->Create(WS_CHILD|WS_TABSTOP|WS_VISIBLE,
  r, this, iCnt+1 );
}

Thanks for any help

maple

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