TTN_NEEDTEXT: Is it possible to create multiline tooltip?

Comments

• FDrache

  April 2004

  [blue]Try
  . Hope this helps.
  You are more advanced than me. I would be happy to get a tooltip in MFC at all.[/blue]
  : Hi,
  : i've got a CDialog derived class and i want to show a multiline tooltip for a button.
  : There is a OnToolTipNeedText function OnToolTipNeedText( UINT id, NMHDR * pNMHDR, LRESULT * pResult ) to catch the TTN_NEEDTEXT message, where i feed
  : TOOLTIPTEXT *pTTT = (TOOLTIPTEXT *)pNMHDR;
  : pTTT->lpszText = MAKEINTRESOURCE(nID);
  : just like a sample in msdn help.
  : It seems that it's impossible to show a multiline tooltip this way . I use
  in the resource string to create line breaks.
  : Thanks, Petra
  :
  
  
  
  
• stober

  April 2004

  : [blue]Try
  . Hope this helps.
  : You are more advanced than me. I would be happy to get a tooltip in MFC at all.[/blue]
  : : Hi,
  
  look around on www.codeproject.com because they have several MFC classes that do tooltips, multiline tootips, and round tooltips.
  
• pfluegge

  April 2004

  Thank you.
  
  : : [blue]Try
  . Hope this helps.
  : : You are more advanced than me. I would be happy to get a tooltip in MFC at all.[/blue]
  : : : Hi,
  :
  : look around on www.codeproject.com because they have several MFC classes that do tooltips, multiline tootips, and round tooltips.
  :
  
  
• pfluegge

  April 2004

  Hi,
  (my answer is late, somehow the notification didn't work.)
  no, that doesn't work, the
  and
  appears as little rectangles
  in the tooltip.
  : [blue]Try
  . Hope this helps.
  : You are more advanced than me. I would be happy to get a tooltip in MFC at all.[/blue]
  Just look in the msdn documentation of CWnd EnableTooltips and the sample there.
  Thank you for your answer,
  Petra
  
  : : Hi,
  : : i've got a CDialog derived class and i want to show a multiline tooltip for a button.
  : : There is a OnToolTipNeedText function OnToolTipNeedText( UINT id, NMHDR * pNMHDR, LRESULT * pResult ) to catch the TTN_NEEDTEXT message, where i feed
  : : TOOLTIPTEXT *pTTT = (TOOLTIPTEXT *)pNMHDR;
  : : pTTT->lpszText = MAKEINTRESOURCE(nID);
  : : just like a sample in msdn help.
  : : It seems that it's impossible to show a multiline tooltip this way . I use
  in the resource string to create line breaks.
  : : Thanks, Petra
  : :
  :
  :
  :
  :
  
  
• Andreas3165

  May 2004

  : Hi,
  : i've got a CDialog derived class and i want to show a multiline tooltip for a button.
  : There is a OnToolTipNeedText function OnToolTipNeedText( UINT id, NMHDR * pNMHDR, LRESULT * pResult ) to catch the TTN_NEEDTEXT message, where i feed
  : TOOLTIPTEXT *pTTT = (TOOLTIPTEXT *)pNMHDR;
  : pTTT->lpszText = MAKEINTRESOURCE(nID);
  : just like a sample in msdn help.
  : It seems that it's impossible to show a multiline tooltip this way . I use
  in the resource string to create line breaks.
  : Thanks, Petra
  :
  After I called CToolTipCtrl::SetMaxTipWidth(500) the control has no problems to display multiple lines. ( Call UpdateTipText("Line1
  Line2
  Line3") for a test.
  
• pfluegge

  May 2004

  : : Hi,
  : : i've got a CDialog derived class and i want to show a multiline tooltip for a button.
  : : There is a OnToolTipNeedText function OnToolTipNeedText( UINT id, NMHDR * pNMHDR, LRESULT * pResult ) to catch the TTN_NEEDTEXT message, where i feed
  : : TOOLTIPTEXT *pTTT = (TOOLTIPTEXT *)pNMHDR;
  : : pTTT->lpszText = MAKEINTRESOURCE(nID);
  : : just like a sample in msdn help.
  : : It seems that it's impossible to show a multiline tooltip this way . I use
  in the resource string to create line breaks.
  : : Thanks, Petra
  : :
  : After I called CToolTipCtrl::SetMaxTipWidth(500) the control has no problems to display multiple lines. ( Call UpdateTipText("Line1
  Line2
  Line3") for a test.
  
  Hi Andreas,
  i think you are right, i'll try it using a CToolTipCtrl.
  Thanks,
  Petra
  
• sharanaiyps

  April 2010

  Hey there!This is a very old post, but never the less, I felt like sharing the solution that I found.I ran into the same problem the other day.
  
  1. Get the control's tooltip object by calling GetToolTips() or something.
  2. Set the Max-tooltip width to 0 by calling SetMaxTipWidth(0) [CToolTipCtrl::SetMaxTipWidth(0)]
  3.Then use "
  " wherever you need a new line.
  
  I have tried it and it works for me! The control that I am using is a CListCtrl
  Hope this post will help someone ;-)
  
  OK, here's an update(22/04/2010):
  For a dialog control, Set the SetMaxTipWidth as follows in the TTN_NEEDTEXT notification function before setting the tooltip text:
  
  AFX_MODULE_THREAD_STATE* pModuleThreadState =AfxGetModuleThreadState();
  if(pModuleThreadState)
  {
  CToolTipCtrl* pToolTip = pModuleThreadState->m_pToolTip;
  if(pToolTip)
  pToolTip->SetMaxTipWidth(0);
  }
  That should do the trick!
  Note:
  1.Doing the above procedure in the init function has no affect.
  2. Works if this is done just once, there is no need to set it each time when a TTN_NEEDTEXT message is handled.