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;



}