VC 怎么实现对鼠标离开对话框时，事件的处理

捕获鼠标离开对话框的事件

方法一：使用_TrackMouseEvent函数处理，对应的代码如下：

BOOL CLRCDlg::PreTranslateMessage(MSG* pMsg) {static BOOLbMouseTracking = FALSE;if(pMsg->message==WM_MOUSELEAVE)     {bMouseTracking= FALSE;AfxMessageBox("鼠标已离开对话框");}else if(pMsg->message==WM_MOUSEMOVE){if(!bMouseTracking){TRACKMOUSEEVENT   tme;   tme.cbSize=sizeof(tme);   tme.dwFlags=TME_HOVER | TME_LEAVE;   tme.dwHoverTime=50;   tme.hwndTrack=m_hWnd;   bMouseTracking = _TrackMouseEvent(&tme);}}return CDialog::PreTranslateMessage(pMsg);}

方法二：使用CRect的PtInRect函数，对应的代码如下：

BOOL CLRCDlg::PreTranslateMessage(MSG* pMsg){CRect rc;GetWindowRect(&rc);if(rc.PtInRect(pMsg->pt)){}else{AfxMessageBox("鼠标已离开对话框");}return CDialog::PreTranslateMessage(pMsg);}