1 // test__getinformation.cpp : 定义控制台应用程序的入口点。  2 //  3   4 #include "stdafx.h"  5 #include <windows.h>  6 #include <TlHelp32.h>  7   8 #ifndef CONST  9 #define CONST const 10 #endif 11  12 #ifndef IN 13 #define IN 14 #endif 15  16 #ifndef OUT 17 #define OUT 18 #endif 19  20 #ifndef INOUT 21 #define INOUT 22 #endif 23  24 #ifndef OPTIONAL 25 #define OPTIONAL 26 #endif 27  28  29 namespace TEST__GETINFORMATION 30 { 31  32     //获取当前进程id 33     DWORD GetCurrentProcessId() 34     { 35         return ::GetCurrentProcessId(); 36     } 37  38     //获取当前进行名称 39     BOOL GetCurrentProcessName(INOUT LPTSTR szCurrentProcessName, IN DWORD cchCurrentProcessNameSize) 40     { 41         if (0 != ::GetModuleFileName(NULL, szCurrentProcessName, cchCurrentProcessNameSize)) 42         { 43             return TRUE; 44         } 45         return FALSE; 46     } 47  48     //根据进程名称获取进程id（根据进程id可以用OpenProcess函数获取进程句柄，有了句柄就可以做任何事情了） 49     BOOL GetProcessIdByName(IN LPTSTR szProcessName, IN DWORD cchProcessNameSize, OUT LPDWORD lpdwProcessId) 50     { 51         HANDLE hSnapshot = NULL; 52         PROCESSENTRY32 stProcessInfor; 53  54         hSnapshot = ::CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0); 55         if (INVALID_HANDLE_VALUE =http://www.mamicode.com/= hSnapshot) return FALSE; 56         stProcessInfor.dwSize = sizeof(PROCESSENTRY32); 57         if (FALSE == ::Process32First(hSnapshot, &stProcessInfor)) return FALSE; 58         if (0 == ::lstrcmp(szProcessName, stProcessInfor.szExeFile)) 59         { 60             *lpdwProcessId = stProcessInfor.th32ProcessID; 61             return TRUE; 62         } 63         while (TRUE == ::Process32Next(hSnapshot, &stProcessInfor)) 64         { 65             if (0 == ::lstrcmp(szProcessName, stProcessInfor.szExeFile)) 66             { 67                 *lpdwProcessId = stProcessInfor.th32ProcessID; 68                 return TRUE; 69             } 70         } 71         return FALSE; 72     } 73  74     //根据进程id获取进程句柄 75     HANDLE GetProcessHandleById(IN DWORD dwProcessId, IN DWORD dwDesiredAccess) 76     { 77         return ::OpenProcess(dwDesiredAccess, TRUE, dwProcessId); 78     } 79  80 } 81 int _tmain(int argc, _TCHAR* argv[]) 82 { 83     //获取当前进程id 84     DWORD dwCurrentProcessId = TEST__GETINFORMATION::GetCurrentProcessId(); 85  86     //获取当前进行名称 87     LPTSTR szCurrentProcessName = (LPTSTR)::HeapAlloc(::GetProcessHeap(), HEAP_ZERO_MEMORY, MAX_PATH*sizeof(TCHAR)); 88     if (NULL == szCurrentProcessName) return 0; 89     BOOL bSuccess = TEST__GETINFORMATION::GetCurrentProcessName(szCurrentProcessName, MAX_PATH); 90     ::HeapFree(::GetProcessHeap(), 0, szCurrentProcessName); 91     szCurrentProcessName = NULL; 92  93     //根据进程名称获取进程id（根据进程id可以用OpenProcess函数获取进程句柄，有了句柄就可以做任何事情了） 94     LPTSTR szGoComProcessName = (LPTSTR)::HeapAlloc(::GetProcessHeap(), HEAP_ZERO_MEMORY, MAX_PATH*sizeof(TCHAR)); 95     LPTSTR szGoComFileName = TEXT("GoCom.exe"); 96     DWORD dwGoGcomProcessId = 0; 97     ::wsprintf(szGoComProcessName, TEXT("%s"), szGoComFileName); 98     bSuccess = TEST__GETINFORMATION::GetProcessIdByName(szGoComProcessName, MAX_PATH, &dwGoGcomProcessId); 99     ::HeapFree(::GetProcessHeap(), 0, szGoComProcessName);100     szGoComProcessName = NULL;101 102     //根据进程id获取进程句柄103     HANDLE hProcessHandle = TEST__GETINFORMATION::GetProcessHandleById(dwGoGcomProcessId, PROCESS_ALL_ACCESS);104     if (FALSE == hProcessHandle) return 0;105     ::CloseHandle(hProcessHandle);106 107     return 0;108 }