BOOL WINAPI  EnumProcesses (
                             _Out_writes_bytes_(cb) DWORD * lpidProcess,
                             _In_ DWORD cb,
                             _Out_ LPDWORD lpcbNeeded
                            );

HANDLE OpenProcess(  
                    DWORD dwDesiredAccess,  // access flag
                    BOOL bInheritHandle,    // handle inheritance option
                    DWORD dwProcessId       // process identifier
                   );


BOOL WINAPI QueryFullProcessImageNameA(
    _In_ HANDLE hProcess,
    _In_ DWORD dwFlags,
    _Out_writes_to_(*lpdwSize, *lpdwSize) LPSTR lpExeName,
    _Inout_ PDWORD lpdwSize
    );

函數使用起來都比較方便，參數不說了，需要註意使用EnumProcess要包涵#include <Psapi.h>，以及對應的導入庫lib
具體代碼示例如下：

#include "stdafx.h"
#include <Windows.h>
#include <string>
#include <Psapi.h>

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

using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
	DWORD dwProcessID[0x500] = { 0 };  //開始的預先分配較大的緩沖區，用來存放進程ID
	DWORD dwNeeded = 0;
	BOOL bEnumRes = EnumProcesses(dwProcessID, sizeof(dwProcessID), &dwNeeded);
	UINT uCount = dwNeeded / sizeof(DWORD);//獲得枚舉到進程的數量
	for (UINT i = 0; i < uCount; i++)
	{ 

               //只對進程進程枚舉，所以申請QUERY權限，具體還得根據應用申請權限

		HANDLE hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, dwProcessID[i]);
		if (NULL !=hProcess)
		{
			CHAR szProcessName[0x50] = { 0 };
			DWORD dwNameLen = 0x50;
			BOOL bRet = QueryFullProcessImageNameA(hProcess, 0, szProcessName, &dwNameLen);
			if (bRet)
			{
				printf("ID:%4d\tprocessName(%s)\n", dwProcessID[i], szProcessName);
			}
		}
	}
	getchar();
	return 0;
}

EnumProcess 實現枚舉進程