Property Grid - Tooltip in popup tree control

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Tooltip in popup tree control

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Category: Codejock Products
Forum Name: Property Grid
Forum Description: Topics Related to Codejock Property Grid
URL: http://forum.codejock.com/forum_posts.asp?TID=5563
Printed Date: 22 June 2024 at 10:49pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Tooltip in popup tree control

Posted By: mgampi
Subject: Tooltip in popup tree control
Date Posted: 20 November 2006 at 11:33am

Hi;

I have troubles in displaying a tooltip within a popup tree control.

See attached image.

Any ideas whats wrong?

Martin

Replies:

Posted By: Oleg
Date Posted: 20 November 2006 at 1:58pm

It is known CTreeCtrl problem.

here is code we use in CXTTreeCtrl to fix it:

BOOL CXTTreeBase::OnNotify(WPARAM wParam, LPARAM lParam, LRESULT* pResult)
{
NMHDR* pNMHDR = (NMHDR*)lParam;

switch (pNMHDR->code)
{
case TTN_SHOW:
  {
   // get a pointer to the tooltip control.
   HWND hWnd = TreeView_GetToolTips(m_pTreeCtrl->m_hWnd);
   if (hWnd != NULL)
   {
    // make sure the tooltip is at the top of the "Z" order, otherwise
    // it will appear behind popup windows....
    ::SetWindowPos(hWnd, HWND_TOP, 0, 0, 0, 0,
     SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
   }
  }
  break;
}

return m_pTreeCtrl->CTreeCtrl::OnNotify(wParam, lParam, pResult);
}

-------------
Oleg, Support Team
CODEJOCK SOFTWARE SOLUTIONS

Posted By: mgampi
Date Posted: 21 November 2006 at 2:57am

Hi Oleg;

This happens with the CXTTreeCtrl! I'm not using the CTreeCtrl. I create the control in this way:

Am I missing any necessary style?

Martin

Posted By: mgampi
Date Posted: 21 November 2006 at 3:46am

Hello Oleg;

I took your reply as a hint and wrote my own OnNotify() function. After changing the flag for the second parameter of SetWindowPos to HWND_TOPMOST it works as expected. Here are my small changes in my treectrl class function OnNotify() (perhaps this changes should also go into your CXTReeCtrlBase class:

if (hWnd != NULL)

{

// make sure the tooltip is at the top of the "Z" order, otherwise

// it will appear behind popup windows....

::SetWindowPos(hWnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);

}

Martin