Re: CToolTipCtrl and HitTest
If I were you I would use the TTN_NEEDTEXT message. With that said you will
need to get rid of all the CToolTipCtrls that you currently create. Here
all you have to do is call EnableToolTips(TRUE) in your dialog
OnInitDialog().. Then you catch the TTN_NEEDTEXT notify message like this
BEGIN_MESSAGE_MAP(CMyDialog, CDialog)
ON_NOTIFY_EX( TTN_NEEDTEXT, 0, OnToolTipNotify)
END_MESSAGE_MAP()
BOOL CMyDialog::OnToolTipNotify( 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);
pTTT->hinst = AfxGetResourceHandle();
switch (nID)
{
case IDOK : pTTT->lpszText = "OK Button";
return TRUE;
case IDCANCEL : pTTT->lpszText = "Cancel Button";
return TRUE;
default: return FALSE;
}
}
return FALSE;
}
AliR.
"Mark Foley" <foleym@meftechno.com> wrote in message
news:45db75de$0$8969$4c368faf@roadrunner.com...
I have an array of 32 tooltip controls because I have 32 LEDs. The tooltip
for a given LED is not
always enabled, hence Activate() must apply only to a given
control/tooltip.
The question is how can I update the text when the cursor is placed over
the control such that the
tooltip pops up current information?
Thanks!
"AliR (VC++ MVP)" <AliR@online.nospam> wrote in message
news:HSJCh.15994$O02.15608@newssvr11.news.prodigy.net...
Did you specify a problem in this post? I read the entire thing but did
see a question!
Is the question why m_POLErrorInfo[i].HitTest() return TRUE all the time?
That all depends on what your AddTool method looks like?
Why do you have an array of CToolTipCtrls? You should have one pre
dialog and add multiple tools (control) to it using AddTool. After you
do that CToolTipCtrl::HitTest will return the control id of the control
under the mouse.
As far as your OnToolHitTest goes you should return pTI->uId if you want
to change the tooltip or -1 if you don't. (The doc is wrong on that you
have to return 1).
AliR.
"Mark Foley" <foleym@meftechno.com> wrote in message
news:45db63ac$0$1372$4c368faf@roadrunner.com...
Can comeone please explain to me why this seems to not work as
advertised?
I have seen countless examples which go to great lengths to implement
what I want to do and which seems as if it should be quite simple.
I have multiple IPictEditor controls which are a simple LED box
on a dialog.
I have created and added a CToolTipCtrl for each one. All of this works
perfectly - the tooltip pops up just like I want it to.
Periodically I update the tooltip text using UpdateTipText(). No
problem there.
What I would like to be able to do is update the text when the user
moves
the cursor over the tooltip area.
The documentation for the CToolTipCtrl class seems to indicate that this
should be as simple as:
1. Override OnToolHitTest() ie. INT_PTR CMon::OnToolHitTest(CPoint
point, TOOLINFO* pTI) const
INT_PTR CMon::OnToolHitTest(CPoint point, TOOLINFO* pTI) const
{
BOOL res;
CToolInfo m_ToolInfo;
TRACE("\n Point %d, %d Hit",point.x,point.y);
for (int i=0; i<IBS_MAXIMUM_POL_COUNT; i++)
{
// Get the ToolInfo about this Tool
if (m_POLErrorInfo[i].GetToolInfo(m_ToolInfo, GetDlgItem(IDC_RUN_0+i)))
{
if (m_POLErrorInfo[i].HitTest(GetDlgItem(IDC_RUN_0+i), point,
(LPTOOLINFO)&m_ToolInfo))
{
TRACE("\n Tooltip for POL %d is hit",i);
// I should be able to call UpdateTipText() to update my text...
}
}
}
return Dialog_Brush_Base::OnToolHitTest(point, pTI);
}
The HitTest always returns true, regardless of where the cursor is.
GetToolInfo() correctly returns info about my tooltip.