如何判断给定目录下的进程已经运行。

[图灵转世]

我需要判断制定目录下的具体某个exe文件是否已经运行，有没有办法。希望大虾给出示范代码。

[oyljerry]

遍历进程列表，然后获取对应的进程句柄，然后GetModuleFileNameEx就可以获取exe的完整路径

[Eleven]

EnumProcesses()枚举进程

#include "stdafx.h"

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

void PrintProcessNameAndID( DWORD processID )
{
	TCHAR szProcessName[MAX_PATH] = TEXT("<unknown>");

	// Get a handle to the process.

	HANDLE hProcess = OpenProcess( PROCESS_QUERY_INFORMATION |
		PROCESS_VM_READ,
		FALSE, processID );

	// Get the process name.

	if (NULL != hProcess )
	{
		HMODULE hMod;
		DWORD cbNeeded;

		if ( EnumProcessModules( hProcess, &hMod, sizeof(hMod), 
			&cbNeeded) )
		{
			GetModuleFileNameEx( hProcess, hMod, szProcessName, 
				sizeof(szProcessName)/sizeof(TCHAR) );
			_tprintf( TEXT("%s  (PID: %u)\n"), szProcessName, processID );
		}
	}

	// Print the process name and identifier.

	CloseHandle( hProcess );
}

[珍惜生命远离CPP]

自己稍微改一下就可以了

#include <windows.h>
#include <tlhelp32.h>
#include <tchar.h>
#include <stdio.h>

//  Forward declarations:
BOOL GetProcessList( );
BOOL ListProcessModules( DWORD dwPID );
BOOL ListProcessThreads( DWORD dwOwnerPID );
void printError( TCHAR* msg );

void main( )
{
  GetProcessList( );
}

BOOL GetProcessList( )
{
  HANDLE hProcessSnap;
  HANDLE hProcess;
  PROCESSENTRY32 pe32;
  DWORD dwPriorityClass;

  // Take a snapshot of all processes in the system.
  hProcessSnap = CreateToolhelp32Snapshot( TH32CS_SNAPPROCESS, 0 );
  if( hProcessSnap == INVALID_HANDLE_VALUE )
  {
    printError( TEXT("CreateToolhelp32Snapshot (of processes)") );
    return( FALSE );
  }

  // Set the size of the structure before using it.
  pe32.dwSize = sizeof( PROCESSENTRY32 );

  // Retrieve information about the first process,
  // and exit if unsuccessful
  if( !Process32First( hProcessSnap, &pe32 ) )
  {
    printError( TEXT("Process32First") ); // show cause of failure
    CloseHandle( hProcessSnap );          // clean the snapshot object
    return( FALSE );
  }

  // Now walk the snapshot of processes, and
  // display information about each process in turn
  do
  {
    printf( "\n\n=====================================================" );
    _tprintf( TEXT("\nPROCESS NAME:  %s"), pe32.szExeFile );
    printf( "\n-----------------------------------------------------" );

    // Retrieve the priority class.
    dwPriorityClass = 0;
    hProcess = OpenProcess( PROCESS_ALL_ACCESS, FALSE, pe32.th32ProcessID );
    if( hProcess == NULL )
      printError( TEXT("OpenProcess") );
    else
    {
      dwPriorityClass = GetPriorityClass( hProcess );
      if( !dwPriorityClass )
        printError( TEXT("GetPriorityClass") );
      CloseHandle( hProcess );
    }

    printf( "\n  Process ID        = 0x%08X", pe32.th32ProcessID );
    printf( "\n  Thread count      = %d",   pe32.cntThreads );
    printf( "\n  Parent process ID = 0x%08X", pe32.th32ParentProcessID );
    printf( "\n  Priority base     = %d", pe32.pcPriClassBase );
    if( dwPriorityClass )
      printf( "\n  Priority class    = %d", dwPriorityClass );

    // List the modules and threads associated with this process
    ListProcessModules( pe32.th32ProcessID );
    ListProcessThreads( pe32.th32ProcessID );

  } while( Process32Next( hProcessSnap, &pe32 ) );

  CloseHandle( hProcessSnap );
  return( TRUE );
}


BOOL ListProcessModules( DWORD dwPID )
{
  HANDLE hModuleSnap = INVALID_HANDLE_VALUE;
  MODULEENTRY32 me32;

  // Take a snapshot of all modules in the specified process.
  hModuleSnap = CreateToolhelp32Snapshot( TH32CS_SNAPMODULE, dwPID );
  if( hModuleSnap == INVALID_HANDLE_VALUE )
  {
    printError( TEXT("CreateToolhelp32Snapshot (of modules)") );
    return( FALSE );
  }

  // Set the size of the structure before using it.
  me32.dwSize = sizeof( MODULEENTRY32 );

  // Retrieve information about the first module,
  // and exit if unsuccessful
  if( !Module32First( hModuleSnap, &me32 ) )
  {
    printError( TEXT("Module32First") );  // show cause of failure
    CloseHandle( hModuleSnap );           // clean the snapshot object
    return( FALSE );
  }

  // Now walk the module list of the process,
  // and display information about each module
  do
  {
    _tprintf( TEXT("\n\n     MODULE NAME:     %s"),   me32.szModule );
    _tprintf( TEXT("\n     Executable     = %s"),     me32.szExePath );//<=========这里就是路径
    printf( "\n     Process ID     = 0x%08X",         me32.th32ProcessID );
    printf( "\n     Ref count (g)  = 0x%04X",     me32.GlblcntUsage );
    printf( "\n     Ref count (p)  = 0x%04X",     me32.ProccntUsage );
    printf( "\n     Base address   = 0x%08X", (DWORD) me32.modBaseAddr );
    printf( "\n     Base size      = %d",             me32.modBaseSize );

  } while( Module32Next( hModuleSnap, &me32 ) );

  CloseHandle( hModuleSnap );
  return( TRUE );
}

BOOL ListProcessThreads( DWORD dwOwnerPID ) 
{ 
  HANDLE hThreadSnap = INVALID_HANDLE_VALUE; 
  THREADENTRY32 te32; 
 
  // Take a snapshot of all running threads  
  hThreadSnap = CreateToolhelp32Snapshot( TH32CS_SNAPTHREAD, 0 ); 
  if( hThreadSnap == INVALID_HANDLE_VALUE ) 
    return( FALSE ); 
 
  // Fill in the size of the structure before using it. 
  te32.dwSize = sizeof(THREADENTRY32 ); 
 
  // Retrieve information about the first thread,
  // and exit if unsuccessful
  if( !Thread32First( hThreadSnap, &te32 ) ) 
  {
    printError( TEXT("Thread32First") ); // show cause of failure
    CloseHandle( hThreadSnap );          // clean the snapshot object
    return( FALSE );
  }

  // Now walk the thread list of the system,
  // and display information about each thread
  // associated with the specified process
  do 
  { 
    if( te32.th32OwnerProcessID == dwOwnerPID )
    {
      printf( "\n\n     THREAD ID      = 0x%08X", te32.th32ThreadID ); 
      printf( "\n     Base priority  = %d", te32.tpBasePri ); 
      printf( "\n     Delta priority = %d", te32.tpDeltaPri ); 
    }
  } while( Thread32Next(hThreadSnap, &te32 ) ); 

  CloseHandle( hThreadSnap );
  return( TRUE );
}

void printError( TCHAR* msg )
{
  DWORD eNum;
  TCHAR sysMsg[256];
  TCHAR* p;

  eNum = GetLastError( );
  FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
         NULL, eNum,
         MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
         sysMsg, 256, NULL );

  // Trim the end of the line and terminate it with a null
  p = sysMsg;
  while( ( *p > 31 ) || ( *p == 9 ) )
    ++p;
  do { *p-- = 0; } while( ( p >= sysMsg ) &&
                          ( ( *p == '.' ) || ( *p < 33 ) ) );

  // Display the message
  _tprintf( TEXT("\n  WARNING: %s failed with error %d (%s)"), msg, eNum, sysMsg );
}

[kael_9527]

FindWindow()

[快乐鹦鹉]

搜索已运行的进程吧。

[xjl_nad]

方法很多的，找窗口句柄，互斥变量，内层映射都可以实现。

[fandh]

制定目录下的具体某个exe文件是否已经运行?
那exe拷贝到其它目录，是否算？如果算的话，就不难，就与目录无关了！只要这个exe运行就。。。。

[见习学术士]

已知进程句柄

GetWindowThreadProcessId(hwnd,   &hProcessID); 
hProcess=OpenProcess(PROCESS_QUERY_INFORMATION|PROCESS_VM_READ,false,hProcessID); 
HMODULE   hMod; 
DWORD   cbNeeded; 
if(EnumProcessModules(hProcess,   &hMod,   sizeof(hMod),&cbNeeded)   ) 
{ 
          dwRetVal   =   GetModuleBaseName(hProcess,   hMod,szProcessName,sizeof(szProcessName)   ); 
          dwRetValEx   =   GetModuleFileNameEx(   hProcess,   hMod,   szProcessPath,sizeof(szProcessPath)); 
}