Board index » Visual Studio » mouse exit window - don't know how to turn off tooltip

Visual Studio170
I have a window (a CView) in which I want to display a tooltip (for

x,y etc) when the mouse pointer is within the client area.



I have created it in OnInitialUpdate



void CTP3ProfileView::OnInitialUpdate()

{

/* Create a tooltip window for general use */

unsigned int uid = 0;

_tcscpy(m_tooltiptext,_T(""));



m_tooltips = CreateWindowEx(WS_EX_TOPMOST,

TOOLTIPS_CLASS,

NULL,

TTS_NOPREFIX | TTS_ALWAYSTIP,

CW_USEDEFAULT,

CW_USEDEFAULT,

CW_USEDEFAULT,

CW_USEDEFAULT,

this->GetSafeHwnd(),

NULL,

NULL,

NULL);



// INITIALIZE MEMBERS OF THE TOOLINFO STRUCTURE

m_tooltipinfo.cbSize = sizeof(TOOLINFO);

m_tooltipinfo.uFlags = TTF_TRACK | TTF_TRANSPARENT;

m_tooltipinfo.hwnd = this->GetSafeHwnd();

m_tooltipinfo.hinst = NULL;

m_tooltipinfo.uId = uid;

m_tooltipinfo.lpszText = m_tooltiptext;

// ToolTip control will cover the whole window

m_tooltipinfo.rect.left = 0;

m_tooltipinfo.rect.top = 0;

m_tooltipinfo.rect.right = 0;

m_tooltipinfo.rect.bottom = 0;



::SendMessage(m_tooltips,TTM_SETMAXTIPWIDTH, 0, SHRT_MAX);

::SendMessage(m_tooltips,TTM_SETDELAYTIME, TTDT_AUTOPOP,

SHRT_MAX);

::SendMessage(m_tooltips,TTM_SETDELAYTIME, TTDT_INITIAL, 200);

::SendMessage(m_tooltips,TTM_SETDELAYTIME, TTDT_RESHOW, 200);

::SendMessage(m_tooltips,TTM_ADDTOOL,0,(LPARAM)(LPTOOLINFO)&m_tooltipinfo);

}





Ok So far so good.



Then in OnMouseMove(), I activate it



void CTP3ProfileView::OnMouseMove(UINT nFlags, CPoint point)

{

_stprintf(m_tooltiptext, "something", ...);



::SendMessage(m_tooltips,TTM_TRACKACTIVATE,true,(LPARAM)(LPTOOLINFO)&m_tooltipinfo);

::SendMessage(m_tooltips,TTM_UPDATETIPTEXT,0,(LPARAM)(LPTOOLINFO)&m_tooltipinfo);



POINT p = point;

ClientToScreen(&p);

::SendMessage(m_tooltips,TTM_TRACKPOSITION,0,(LPARAM)(DWORD)MAKELONG(p.x+10,p.y+10));



CView::OnMouseMove(nFlags, point);

}





The problem is that when the mouse is going to the frame etc, the

tooltip is still in the last shown position, of course, because I

don't know how/when to tell it to turn off. I'm probably doing this

the wrong way. Any tips will be appreciated.


-

Can you make use of (_)TrackMouseEvent perhaps?



Dave

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