win32事件處理

#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;  //註釋掉這句你就會看到堆內存地址變化

            break;

        default:

            printf("Unknown msg:0x%x\n",msg.message);

            break;

        }

        Sleep(1);

    }

    return 0;

}

 

 

 

這就是簡單的事件驅動機制！不過不建議用CreateThread這個函數！