ToolTip is not Shown

[poda]

I have problem in displaying the tooltip. In the header file of the Dialog,I declare the message handler as afx_msg BOOL ShowMyToolTips(UINT id, NMHDR* pTTTStruct, LRESULT* pResult); In the .cpp file of the Dialog, BEGIN_MESSAGE_MAP(CSimpleToolTipDlg, CDialog) ... ON_NOTIFY_EX(TTN_NEEDTEXT,0,ShowMyToolTips) END_MESSAGE_MAP() In the OnInitDialog BOOL CSimpleToolTipDlg::OnInitDialog() { ... EnableToolTips(true);//This is required return TRUE; } Then the definition of the message handler BOOL CSimpleToolTipDlg::ShowMyToolTips(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); if(nID) { pTTT->lpszText = "I am a ToolTip";//MAKEINTRESOURCE(nID); pTTT->hinst = AfxGetResourceHandle(); return(TRUE); } } return(FALSE); } The big problem is,ShowMyToolTips() function is not called at all. I even tried ON_NOTIFY_EX_RANGE(TTN_NEEDTEXTA, 0, 0xFFFF, ShowMyToolTips) ON_NOTIFY_EX_RANGE(TTN_NEEDTEXTW, 0, 0xFFFF, ShowMyToolTips) But it also does not work. Do any one know what's wrong.

[Naveen]

overide the OnNotify function and inside it check for the code TTN_NEEDTEXT

nave

[poda]

You are great man! It works fine,if I just override OnNotify function without adding any code in it. If you know the reason why it does not work if OnNotify was not overridden,let me also know that. Thank you so much.

[Naveen]

poda123 wrote:

I just override OnNotify

u didn't write any code inside it?:confused:

nave

[poda]

Yes, I did not write any code in OnNotify().But it works. Also I cannot write the code of TTN_NEEDTEXT message handler's code in OnNotify() function because the parameters has to be given by the OS BOOL CWFPDlg::ShowMyToolTips(UINT id, NMHDR* pNMHDR, LRESULT* pResult) { }

[Naveen]

u can d like this. BOOL CWFPDlg::ShowMyToolTips(UINT id, NMHDR* pNMHDR, LRESULT* pResult) { if( pNMHDR->code == TTN_NEEDTEXT) { // u r code... } } any way now it working na.. where r u from?

nave

[poda]

You suggested me to write the ShowMyToolTips() function code in OnNotify() function. Since the parameters such as NMDHR* has to be given by OS,I cannot write it in overridden OnNotify() function. ShowMyToolTips() function is the Message Handler for the Message TTN_NEEDTEXT. So again why should I check like if( pNMHDR->code == TTN_NEEDTEXT) { // u r code... } Thanks for your reply. I am from Chennai,India.