win32里玩事件-转

#include "stdafx.h"
#include <stdio.h>
#include <windows.h>
#include <iostream>
#include <process.h>

#define UM_MSG1 WM_USER+1
#define UM_MSG2 WM_USER+2

DWORD WINAPI Thread1(LPVOID para)
{
	DWORD dwThreadId = *(DWORD *)para;
	DWORD i=0;
	TCHAR *p;
	char strTmp[100];
	while(TRUE)
	{
		Sleep(1700);        
		p=new TCHAR[10];
		sprintf(strTmp,"Hello %d %x",i++,p);
		PostThreadMessage(dwThreadId,UM_MSG1,(WPARAM)strTmp,(LPARAM)p);
		//delete []p;
	}
	return 0;
}

DWORD WINAPI Thread2(LPVOID para)
{
	char strTmp[100];
	DWORD dwThreadId = *(DWORD *)para;
	DWORD i=0;
	TCHAR *p;
	while(TRUE)
	{

		Sleep(3000);
		p=new TCHAR[10];
		sprintf(strTmp,"World %d %x",i++,p);
		PostThreadMessage(dwThreadId,UM_MSG2,(WPARAM)strTmp,(LPARAM)p);
		delete []p;
	}
	return 0;
}


int _tmain(int argc, _TCHAR* argv[])
{
	DWORD dwValue =GetCurrentThreadId();
	HANDLE hThread1 = CreateThread(NULL,0,&Thread1,&dwValue,0,NULL);
	HANDLE hThread2 = CreateThread(NULL,0,&Thread2,&dwValue,0,NULL);
	CloseHandle(hThread1);
	CloseHandle(hThread2);
	MSG msg;
	while(GetMessage(&msg,NULL,0,0))
	{
		switch(msg.message)
		{
		case UM_MSG1:
		case UM_MSG2:
			printf("msg:0x%x      w:%x   ws:%s     l:%x\n",msg.message,&msg.wParam,msg.wParam,msg.lParam);
			delete [](TCHAR *)msg.lParam;  //注释掉这句你就会看到堆内存地址变化
			break;
		default:
			printf("Unknown msg:0x%x\n",msg.message);
			break;
		}
		Sleep(1);
	}
	return 0;
}

  

posted on 2012-04-07 22:06 chuncn 阅读(...) 评论(...) 编辑 收藏

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