添加鼠标移出事件的 一段代码

移除事件是要用_TrackMouseEvent函数注册的，

_TrackMouseEvent注册一次，会响应一次，所以不能注册多了，

响应的消息宏也是固定的，必须为WM_MOUSELEAVE

if(!m_bOverTab )

{

// We are here if the mouse just entered the CLBTabCtrl

//

// Let's use _TrackMouseEvent API to be notified when the mouse leaves.

// This API tries to use the window manager's

// implementation of TrackMouseEvent if it is present,

// otherwise it emulates.

m_bOverTab=true;

TRACKMOUSEEVENT stTRACKMOUSEEVENT;

stTRACKMOUSEEVENT.cbSize = sizeof(stTRACKMOUSEEVENT);

stTRACKMOUSEEVENT.hwndTrack=m_hWnd;

stTRACKMOUSEEVENT.dwFlags=TME_LEAVE;

_TrackMouseEvent(&stTRACKMOUSEEVENT);

Invalidate();

}

添加消息

ON_MESSAGE(WM_MOUSELEAVE,OnMouseLeave)

函数原型

afx_msg LRESULT OnMouseLeave(WPARAM, LPARAM);

函数定义：

LRESULT CMyTabCtrl::OnMouseLeave(WPARAM, LPARAM)

{

Invalidate();

m_bOverTab=false;

return 0;

}