Tooltip behind dialog

[_Flaviu]

Which could be the reason why a tooltip is layered behind the dialog ? Here is the implementation:

class CNotifyDlg : public CAlertDialog
{
CToolTipCtrl m_ToolTip;
}

and

BOOL CNotifyDlg::PreTranslateMessage(MSG* pMsg)
{
// TODO: Add your specialized code here and/or call the base class

switch(pMsg->message)
{
	case WM\_LBUTTONDOWN:		
	case WM\_LBUTTONUP:		
	case WM\_MOUSEMOVE:
		m\_ToolTip.RelayEvent(pMsg);
}

return CAlertDialog::PreTranslateMessage(pMsg);

}
BOOL CNotifyDlg::OnInitDialog()
{
CAlertDialog::OnInitDialog();

m\_ToolTip.Create(this);
m\_ToolTip.AddTool(GetDlgItem(IDCANCEL), \_T("My message"));
m\_ToolTip.Activate(TRUE);

return TRUE;

}

LRESULT CNotifyDlg::OnButtonMouseOver(WPARAM wParam, LPARAM lParam)
{
if(m_btnClose.GetDlgCtrlID() == (int)wParam)
m_ToolTip.UpdateTipText(_T("My message again"), GetDlgItem(IDCANCEL));
m_ToolTip.Update();

return 0;

}

and I see the tooltip window, but is just behind the dialog ... I can not figure out why is happen this ... CAlertDialog is derived from CDialog ... what I have done wrong here ? Could you help me ? Thank you.

[Jochen Arndt]

Has your dialog the top most status (e.g. by calling SetWindowPos with HWND_TOPMOST or setting the WS_EX_TOPMOST style)? Then change that.

[_Flaviu]

The only call with SetWindowPos is

SetWindowPos(
	FindWindow(\_T("Shell\_TrayWnd"), \_T("")),
	m\_nStartPosX, 
	m\_nStartPosY, 
	rc.Width(), 
	rc.Height(),
	SWP\_NOOWNERZORDER | SWP\_NOACTIVATE);

inside of CAlertDialog ... I don't think this call is the issue ...

[_Flaviu]

But you gave an idea:

m\_ToolTip.Create(this, TTS\_ALWAYSTIP | TTS\_NOPREFIX);
m\_ToolTip.AddTool(GetDlgItem(IDCANCEL), \_T("Bla bla bla"));
m\_ToolTip.Activate(TRUE);
m\_ToolTip.SetWindowPos(&wndTopMost, 0, 0, 0, 0, SWP\_NOSIZE);

I don't know if it's all right, but seem to work ... :) Thank you !!!

[Jochen Arndt]

I was just going to suggest removing SWP_NOOWNERZORDER. However, fine to hear that it seems to be solved.

[_Flaviu]

Still, I will try your suggestion ... I'll come back.

[_Flaviu]

Yep, I removed SWP_NOOWNERZORDER flag, and everything seem to be all right now, without m_ToolTip.SetWindowPos(&wndTopMost, 0, 0, 0, 0, SWP_NOSIZE); ... so, it is better solution ! Thank you again ! :)

[_Flaviu]

Hi Johen. After all, I can not give up SWP_NOOWNERZORDER flag ... It should be there, but I want to ask you what is the best solution to put tooltip above CDialog which has SWP_NOOWNERZORDER flag:

SetWindowPos(
FindWindow(_T("Shell_TrayWnd"), _T("")),
m_nStartPosX,
m_nStartPosY,
rc.Width(),
rc.Height(),
SWP_NOOWNERZORDER | SWP_NOACTIVATE);

the solution was the following:

BOOL CNotifyDlg::OnInitDialog()
{
CAlertDialog::OnInitDialog();

m_ToolTip.Create(this, TTS_ALWAYSTIP | TTS_NOPREFIX);
m_ToolTip.AddTool(GetDlgItem(IDCANCEL), _T("Close this notification"));
m_ToolTip.Activate(TRUE);
m_ToolTip.SetWindowPos(&CWnd::wndTopMost, 0, 0, 0, 0, SWP_NOOWNERZORDER | SWP_NOSIZE);

return TRUE;
}

It is ok ? To be frank, I don't like idea to setup tooltip as top level window ... there is another solution ? Flaviu.

[Jochen Arndt]

A tooltip should be a top level window to ensure that it is visible. It is only shown when requested by the user and closed when clicking anywhere with the mouse. So it does not interfere with other GUI elements. If you have a working solution I would stay with that.

[_Flaviu]

Ok, I will. It is always a pleasure to talk with you. Thank you for sharing your experience !