MFC 鼠标悬停提示框
 
运行效果
 

 
在MFC窗口中添加一个控件
 
- 工具栏中拖拽List Box到MFC窗口
- 给List Box添加变量CListBox m_listbox
增加成员变量
 
CWnd* m_tip_parent_wnd;
CToolTipCtrl m_tip;
 
给m_listbox创建提示框
 
void create_tip_window(CWnd* tip_wnd, CToolTipCtrl* tip)
{
	tip->Create(tip_wnd);
	tip->AddTool(tip_wnd, TTS_ALWAYSTIP);
	tip->SetTipTextColor(RGB(200, 0, 0);
	tip->SetDelayTime(500)
}
// 在 OnInitDialog 函数中调用如下代码:
m_tip_parent_wnd = &m_listbox;
create_tip_window(m_tip_parent_wnd, &m_tip);
 
重新 virtual BOOL PreTranslateMessage(MSG* pMsg)
 
BOOL PreTranslateMessage(MSG* pMsg)
{
	if (m_tip.m_hWnd != NULL)
	{
		m_tip.RelayEvent(pMsg);
	}
	return CDialogEx::PreTranslateMessage(pMsg);
}
 
增加鼠标移动消息映射ON_WM_MOUSEMOVE()
 
BEGIN_MESSAGE_MAP(XXX, CDialogEx)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_WM_MOUSEMOVE()
END_MESSAGE_MAP()
 
处理鼠标移动消息afx_msg void OnMouseMove(UINT nFlags, CPoint point);
 
void OnMouseMove(UINT nFlags, CPoint point)
{
	m_tip.UpdateTipText(_T("This is test text!"), m_tip_parent_wnd);
	CDialogEx::OnMouseMove(nFlags, point);
}