get tooltip info in MFC

[gorgor]

I'm having trouble getting info from a tool tip in MFC. I initialize a tooltip:

m_pToolTip->Create(this, TTS_NOPREFIX);
m_pToolTip->SetMaxTipWidth(SHRT_MAX);
m_pToolTip->SetTipTextColor(0x000000ff);//0x00bbggrr
m_pToolTip->SetDelayTime(TTDT_AUTOPOP, 1000*60*60*24); //leave tooltip popped up for 1 day
m_pToolTip->SetDelayTime(TTDT_INITIAL, 0); //instant tool tips
m_pToolTip->AddTool(this, "", NULL, 0);
m_pToolTip->Activate(FALSE);

And later I want to get the bounding rectangle of the tooltip. However, I can't find any examples on how to get the information. Here's what I've tried:

CToolInfo toolInfo;
m_pToolTip->GetToolInfo(toolInfo, this, 0);
CRect rect = toolInfo.rect;

For some reason this doesn't seem to work. I try to setup a quick watch on "rect" when I debug, and it is telling me "Error: symbol "rect" not found". Could someone please show me how to fix my code so that I can retrieve the information on the tooltip?

Thanks in advance!

 

[gorgor]

I guess it may be important to note that the tooltip gets activated later in the program and gettoolinfo isn't called until after the tooltip is activated.

 

[pankajkumar]

Hi,
I did it on Win32-SDK based programs...Steps are
1.Create tooltip window in WM_INITDIALOG as-

hWndToolTip = CreateWindowEx(0, TOOLTIPS_CLASS,NULL, WS_POPUP |TTS_NOPREFIX|TTS_ALWAYSTIP, CW_USEDEFAULT, CW_USEDEFAULT, 10, 10, hDlg, NULL, hIsntance, NULL);

Then fill the names of controls in this event WM_INITDIALOG as-
TOOLINFO ti[5];
for(int iCntr=0;iCntr <5;iCntr++)
{
ZeroMemory(&ti[iCntr], sizeof(ti[iCntr]));
ti[iCntr].cbSize = sizeof(ti[iCntr]);
ti[iCntr].uFlags = TTF_IDISHWND | TTF_SUBCLASS;
ti[iCntr].hwnd = hDlg;
switch(iCntr)
{
case 0: ti[iCntr].uId = (UINT)GetDlgItem(hDlg, IDC_BUTT1);
break;
.....

2. Then you should fill the case WM_MOUSEMOVE:
{
MSG msg;

//we need to fill out a message structure and pass it to the tooltip
//with the TTM_RELAYEVENT message
msg.hwnd = hDlg;
.....
SendMessage(hWndToolTip, TTM_RELAYEVENT, 0, (LPARAM)&msg);
.......

3.Then you can give tooltip text in WM_NOTIFY event as-
LPTOOLTIPTEXT lpttt = (LPTOOLTIPTEXT)lParam;
switch (lpttt->hdr.code)
{
case TTN_NEEDTEXT:
{
if (lpttt->hdr.idFrom == (UINT)GetDlgItem(hDlg, IDC_BUTT1))
{
lstrcpy(lpttt->szText, TEXT(&quot;your tooltip&quot);
break;
}
....
....

Hope this helps