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Create In-Place ToolTips on yourself control

, 22 Mar 2007
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It is very easy to create In-Place ToolTips on yourself control like treeview control.

Introduction

It is very easy to create In-Place ToolTips on yourself control like treeview control.

Screenshot - tooltipsdemo.jpg

Using the code

Step 1

In the window's header file you must add a CToolTipCtrl instance and TOOLINFO member, and add message map to handle the mouse messages.

protected:
     afx_msg void OnMouseMove(UINT nFlags, CPoint point);
     afx_msg void OnMouseLeave(WPARAM wPawam, LPARAM lParam);
     //}}AFX_MSG
    DECLARE_MESSAGE_MAP()
private:
     CToolTipCtrl m_toolTip;
     TOOLINFO m_ti;

Step 2

In window's implementation file add the following to the end of Createto set the tooltips.

m_toolTip.Create(this);
m_ti.cbSize = sizeof(m_ti);
m_ti.uFlags = TTF_IDISHWND|TTF_TRACK|TTF_ABSOLUTE |TTF_TRANSPARENT ;
m_ti.hwnd = m_hWnd;
m_ti.hinst = NULL;
m_ti.uId = (UINT)m_hWnd;
m_ti.lpszText = LPSTR_TEXTCALLBACK;
m_ti.rect.left = 0; 
m_ti.rect.top = 0;
m_ti.rect.right = 0;
m_ti.rect.bottom = 0;

m_toolTip.SendMessage(TTM_ADDTOOL, 0, (LPARAM)&m_ti);

At the bottom of the message map add the following:

    ON_WM_MOUSEMOVE()
    ON_MESSAGE(WM_MOUSELEAVE, OnMouseLeave)
END_MESSAGE_MAP()

Finally add the message handler method as entered in the message map:

void CChildView::OnMouseMove(UINT nFlags, CPoint point) 
{
     CDemoItem* pItem = GetItemAtPt(point);
     if(pItem == NULL)
     {
          m_toolTip.SendMessage(TTM_TRACKACTIVATE, FALSE, (LPARAM)&m_ti);
          return; 
     }
     RECT rect;
     GetItemRect(pItem, &rect);
     POINT pt;
      
     TRACKMOUSEEVENT tk;
     tk.cbSize = sizeof(tk);
     tk.dwFlags = TME_LEAVE;
     tk.dwHoverTime = 0;
     tk.hwndTrack = m_hWnd;
     _TrackMouseEvent(&tk);
     pt.x = rect.left - 3;
     pt.y = rect.top - 2;
     ClientToScreen(&pt);
     m_toolTip.SendMessage(TTM_TRACKPOSITION, 0, (LPARAM)MAKELPARAM(pt.x, pt.y));
     m_toolTip.SendMessage(TTM_TRACKACTIVATE, TRUE, (LPARAM)&m_ti);
}

void CChildView::OnMouseLeave(WPARAM wPawam, LPARAM lParam)
{
     m_toolTip.SendMessage(TTM_TRACKACTIVATE, FALSE, (LPARAM)&m_ti);
}

 

Contacting the Author

Auto Debug software is an api monitor tool which can automatic tracing all apis and activex interface input and output parameters. Easy set which api want to monitor, this application will auto trace the target program and monitor the input and output of function call. Monitor any dll and activex interface, automatic analysis pdb files.

http://www.autodebug.com

History

2007-3-23: Add WTL version source files

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

About the Author

autodebug

China China
No Biography provided

Comments and Discussions

 
QuestionDoes not work under VS2008, any ideas? PinmemberDave Streeter25-Aug-09 23:09 
AnswerRe: Does not work under VS2008, any ideas? Pinmemberda_buzz12-Feb-10 10:52 
QuestionHow to change the tooltip show delay?? PinmemberC++ Matter22-Mar-07 5:54 
AnswerRe: How to change the tooltip show delay?? Pinmemberautodebug22-Mar-07 15:23 
GeneralRe: How to change the tooltip show delay?? Pinmemberyotamwimmer12-Dec-10 12:08 

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