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#include "stdafx.h"#include "MyMessage.h"#include 
   
    using namespace std;#ifdef _DEBUG#define new DEBUG_NEW#define DBUG_LOG(st)	printf("%s\r\n",st);#else#define DBUG_LOG(st)	#endif#define MSG_KEY		0X1224	//有键盘输入#define MSG_CHAR	0X1225	//有字符输入#define MSG_QUIT	0X0001	//退出#define MSG_CLOSE	0X0002	//关闭//定义消息struct _MSG{	int msg;	//消息	int param;	//消息参数};//消息队列CList<_MSG>	_MsgQueue;//消息处理函数typedef void (*MessageProc)(int msg,int param);MessageProc	_MessageHandler;void MyMessageProc(int msg,int param);//发送消息---投递消息void _PostMessage(int msg,int param){	_MSG NewMsg;	NewMsg.msg = msg;	NewMsg.param = param;	_MsgQueue.AddTail(NewMsg);}//读取消息队列中的新消息bool _GetMessage(_MSG* pMsg){	while (_MsgQueue.IsEmpty());	_MSG LastMsg = _MsgQueue.RemoveHead();	*pMsg = LastMsg;	if (pMsg->msg == MSG_QUIT)	{		return false;	}	return true;}//转换消息void _TranslateMessage(_MSG *pMsg){	//x键为系统键	if (pMsg->msg == MSG_KEY && pMsg->param == _T('x'))	{		pMsg->msg = MSG_CLOSE;		return;	}	//将键盘消息转换成字符消息	if (pMsg->msg == MSG_KEY)	{		pMsg->msg = MSG_CHAR;	}}//分发消息void _DispatchMessage(_MSG *pMsg){	_MessageHandler = MyMessageProc;	//直接调用消息处理函数---MyMessageProc	(*_MessageHandler)(pMsg->msg,pMsg->param);}//消息大循环，负责读取消息-》分发消息void MessageLoop(/*MessageProc handler*/){	//_MessageHandler = handler;	_MSG msg;	while (_GetMessage(&msg))	{		_TranslateMessage(&msg);		_DispatchMessage(&msg);	}}//对MSG_CHAR的响应void OnChar(int charInput){	DBUG_LOG("进入OnChar函数")	if (charInput == _T('q'))	{		_PostMessage(MSG_QUIT,0);	}	cout<<"输入："<<(char)charInput<
   

流程图如下

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