Tooltip in popup tree control

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   Hi;

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

Any ideas whats wrong?

Martin

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mgampi Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 14 July 2003 Status: Offline Points: 1201	Post Options Post Reply Quote mgampi Report Post Thanks(0) Quote Reply Topic: Tooltip in popup tree control 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

Oleg Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 21 May 2003 Location: United States Status: Offline Points: 11234	Post Options Post Reply Quote Oleg Report Post Thanks(0) Quote Reply 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

mgampi Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 14 July 2003 Status: Offline Points: 1201	Post Options Post Reply Quote mgampi Report Post Thanks(0) Quote Reply 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: CXTTreeCtrl::CreateEx(WS_EX_TOOLWINDOW \| (pParent->GetExStyle() & WS_EX_LAYOUTRTL), WS_CHILD \| WS_BORDER \| WS_VSCROLL \| TVS_DISABLEDRAGDROP \| TVS_TRACKSELECT, CRect(0, 0, 0, 0), pParent, 0) Am I missing any necessary style? Martin

mgampi Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 14 July 2003 Status: Offline Points: 1201	Post Options Post Reply Quote mgampi Report Post Thanks(0) Quote Reply 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