//需要包含的头文件
include <afxwin.h>
//由CFrameWnd派生的CMyWnd类
class CMyWnd :public CFrameWnd
{
private:
char *ShowText=NULL;
public:
afx_msg void OnPaint();
afx_msg void OnLButtonDown(UINT nFlags, CPoint point); //鼠标左键按下消息处理函数
DECLARE_MESSAGE_MAP( )
};
//消息映射的实现
BEGIN_MESSAGE_MAP(CMyWnd,CFrameWnd)
ON_WM_PAINT()
ON_WM_LBUTTONDOWN()
END_MESSAGE_MAP()
//WM_PAINT消息处理函数的实现
void CMyWnd::OnPaint()
{
CPaintDC dc(this);
dc.TextOut(20, 20, ShowText);
}
//WM_LBUTTONDOWMT消息处理函数的实现
void CMyWnd::OnLButtonDown(UINT nFlags, CPoint point)
{
ShowText ="有消息映射表的程序";
InvalidateRect(NULL, TRUE);
}
//程序员由CWinApp派生的应用程序类
class CMyApp:public CWinApp
{
public:
BOOL InitInstance();
};
BOOL CMyApp::InitInstance()
{
CMyWnd* pMainWnd = new CMyWnd;
pMainWnd->Create(0, L"MFC");
pMainWnd -> ShowWindow(m_nCmdShow); pMainWnd -> UpdateWindow();
m_pMainWnd = pMainWnd;
return TRUE;
}
//定义CMyApp的对象MyApp
CMyApp MyApp;