进程-取得同名可执行程序的进程号

#include "windows.h"
#include <string>
#include "tlhelp32.h"
#include <iostream>
#include <stdio.h>
#include <tchar.h>
#include <vector>

void FindAllProcessIdsByName(std::vector<DWORD>& outProcessIDsContainer,const std::string& in_processName)   
{   
	PROCESSENTRY32 processInfo;   
	processInfo.dwSize = sizeof(processInfo);   

	HANDLE processesSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, NULL);   
	if (processesSnapshot == INVALID_HANDLE_VALUE)   
	{   
		return;   
	}   

	//Process First in snapshot and traverse the list.   
	Process32First(processesSnapshot, &processInfo);   
	if (!in_processName.compare(processInfo.szExeFile))   
	{   
		//Process exists.   
		outProcessIDsContainer.push_back(processInfo.th32ProcessID);   
	}   

	while ( Process32Next(processesSnapshot, &processInfo) )   
	{   
		if ( !in_processName.compare(processInfo.szExeFile) )   
		{   
			//Process exists. 
			outProcessIDsContainer.push_back(processInfo.th32ProcessID);      
		}   
	}   
	CloseHandle(processesSnapshot);    
} 
int _tmain(int argc, _TCHAR* argv[])
{
	std::vector<DWORD> outProcessIDsContainer;
	const std::string exeName = "QQ.exe";
	FindAllProcessIdsByName(outProcessIDsContainer,exeName);
	std::vector<DWORD>::iterator it;
	for(it = outProcessIDsContainer.begin();it!=outProcessIDsContainer.end();++it){
		std::cout<<exeName<<" ProcessID:"<<*it<<std::endl;
	}
	return 0;
}

结果：

QQ.exe ProcessID:580
QQ.exe ProcessID:2848
QQ.exe ProcessID:1380