获得进程的名字和ID(psapi)

EnumProcess.h

#pragma once

#pragma comment(lib, "psapi.lib")
#include <windows.h>

#include <vector>
#include <string>

#include <psapi.h>

using std::vector;
using std::string;

struct ProcessInfro
{

public:
string ProcessName;
int ProcessID;

};

class MyEnumProcess //
{

public:

vector<ProcessInfro> GetProcessInfo();
string GetProcessName(DWORD processID, UINT index);

};

EnumProcess.cpp

#include "EnumProcess.h"

//-------------------------------------
//返回进程名字
vector<ProcessInfro> MyEnumProcess::GetProcessInfo()
{
vector<ProcessInfro> mVectorProcessInfo;

DWORD aProcesses[1024], cbNeeded, cProcesses; //cbNeeded表示有多少个进程x8,因为一个id占位,aProcesses是进程ID的数组
UINT index; //无符号整形

if (!EnumProcesses(aProcesses, sizeof(aProcesses), &cbNeeded)) //遍历进程 cbNeeded为返回了多少byte
{
return mVectorProcessInfo;
}
// 有多少个进程
cProcesses = cbNeeded / sizeof(DWORD); //除以双字节宽度，没个进程ID占一个DWORD

for ( index = 0; index < cProcesses; index++ )
{

ProcessInfro mProcessInfo;

mProcessInfo.ProcessName=GetProcessName(aProcesses[index], index);
mProcessInfo.ProcessID=aProcesses[index];

mVectorProcessInfo.push_back(mProcessInfo);

}

return mVectorProcessInfo;

}
//=========================================================================

string MyEnumProcess::GetProcessName(DWORD processID, UINT index)
{

string strProcess;

char szProcessName[MAX_PATH];
HANDLE hProcess = OpenProcess( PROCESS_QUERY_INFORMATION |
PROCESS_VM_READ,
FALSE, processID); //aProcesses[index]为进程ID

if (hProcess)
{
HMODULE hMod;
DWORD cbNeededM;

if(EnumProcessModules( hProcess, &hMod, sizeof(hMod), &cbNeededM))

{
GetModuleBaseNameA(hProcess, hMod, szProcessName, sizeof(szProcessName));

}

}

//字符赋给字符串
strProcess=szProcessName;
int i=strProcess.size();

if(i<100)
{

}
else
{
strProcess="名字未知";
}

CloseHandle(hProcess);

return strProcess;

}