C++检测进程数量，打开一定数量的进程(三)

一下程序可以实现打开3个进程，并且实时的监控进程数量，等到所有的进程都退出后，再重新创建3个进程。如此循环往复

#include "stdafx.h"

#include <iostream>

#include <windows.h>

#include <stdlib.h>

#include <tlhelp32.h>

#include "Psapi.h"

#pragma comment(lib,"Kernel32.lib")

using namespace std;

void openProcess()

{
STARTUPINFO si;
memset(&si,0,sizeof(STARTUPINFO));
si.cb=sizeof(STARTUPINFO);
si.dwFlags=STARTF_USESHOWWINDOW;
si.wShowWindow=SW_SHOW;
PROCESS_INFORMATION pi;

if(!CreateProcess(TEXT("D:\\abc\\abc.exe"),//创建进程

NULL,NULL,NULL,FALSE,CREATE_NEW_CONSOLE,NULL,NULL,&si,&pi))

{
cout<<"create failed"<<endl;
}
else
cout<<"create a process successfully!"<<endl;
Sleep(300);

CloseHandle(pi.hThread);
CloseHandle(pi.hProcess);
printf("新进程的ID号：%d\n",pi.dwProcessId);
printf("新进程的主线程ID号：%d\n",pi.dwThreadId);

}

int _tmain(int argc, TCHAR* argv[])

{
for(int i=0;i<3;i++)
{
openProcess();
Sleep(3000);
}

int num=0;
TCHAR exe_name[256]=_T("abc.exe");
PROCESSENTRY32 pe32;
HANDLE HprocessSnap/*=::CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0)*/;

pe32.dwSize=sizeof(pe32);

BOOL bMore/*=::Process32First(HprocessSnap,&pe32)*/;

while(num>=0)
{
num=0;
HprocessSnap=::CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);//不断重复创建进程快照
if(HprocessSnap==INVALID_HANDLE_VALUE)
{
printf("create 进程快照失败!\n");
return -1;
}
bMore=::Process32First(HprocessSnap,&pe32);
while(bMore)
{

if(!_tcscmp(exe_name,pe32.szExeFile))//不停的查询自己创建的进程是否还在运行
{
num++;
printf("find a processManage.exe process num is %d\n",num);
}
bMore=::Process32Next(HprocessSnap,&pe32);
}
if(num>0)
{
Sleep(1000);
}
else 
{
for(int i=0;i<3;i++)
{
openProcess();

Sleep(3000);
}
}
}
return 0;

}