開發一個簡易的任務監控程式

需求：時刻監控工作清單，如果需要一直啟動的程式未開啟，則開啟

實現：

1、枚舉當前已經啟動的進程、擷取進程的ID和名稱

vector launchedProcess;HANDLE handle=CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);//建立當前快照列表PROCESSENTRY32* info=new PROCESSENTRY32;//建立進程資訊變數，用於儲存資訊info->dwSize=sizeof(PROCESSENTRY32);//設定塊大小int i=0;if(Process32First(handle,info))//開始枚舉進程{if(GetLastError()==ERROR_NO_MORE_FILES ){AfxMessageBox(_T("No More Process"));}else{CString id,file;id.Format(L"%d",info->th32ProcessID);//擷取當前進程IDfile.Format(L"%s",info->szExeFile);//擷取當前進程名////TRACE(L"ID:%s,Name:%s",id,file);launchedProcess.push_back(file);if(!isExistInList(id,file)){m_list.InsertItem(i,id);//插入一個項目m_list.SetItemData(i,info->th32ProcessID);//設定項目值m_list.SetItemText(i,1,file);//設定名i++;}while(Process32Next(handle,info)!=FALSE)//繼續擷取進程{id.Format(L"%5d",info->th32ProcessID);file.Format(L"%s",info->szExeFile);launchedProcess.push_back(file);if(!isExistInList(id,file)){m_list.InsertItem(i,id);m_list.SetItemData(i,info->th32ProcessID);m_list.SetItemText(i,1,file);i++;}}}}delete info;//參考博文中未添加CloseHandle(handle);//關閉進程控制代碼

2、通過進程ID擷取進程所對應的執行檔案路徑，需要實現邏輯裝置名映射盤符的問題

HANDLE hProcess = NULL;  BOOL bSuccess = FALSE;  // 由於進程許可權問題，有些進程是無法被OpenProcess的，如果將調用進程的許可權  // 提到“調試”許可權，則可能可以開啟更多的進程  hProcess = OpenProcess(   PROCESS_QUERY_INFORMATION | PROCESS_VM_READ ,   FALSE, dwProcessId );  CString path(_T(""));do   {  if ( NULL == hProcess )  {  // 開啟控制代碼失敗，比如進程為0的進程  break;  }  // 用於儲存檔案路徑，擴大一位，是為了保證不會有溢出  TCHAR szPath[_MAX_PATH + 1] = {0};  // 模組控制代碼  HMODULE hMod = NULL;  // 這個參數在這個函數中沒用處，僅僅為了調用EnumProcessModules  DWORD cbNeeded = 0;  #if 0// 【注】此種方法Win7-64bit cmd.exe擷取不到路徑（同時勾選dbgview、chrome、beyondcompare、cmd）// 擷取路徑  // 因為這個函數只是要獲得進程的Exe路徑，因為Exe路徑正好在返回的資料的  // 第一位，則不用去關心cbNeeded，hMod裡即是Exe檔案的控制代碼.  // If this function is called from a 32-bit application running on WOW64,   // it can only enumerate the modules of a 32-bit process.   // If the process is a 64-bit process,   // this function fails and the last error code is ERROR_PARTIAL_COPY (299).  if( FALSE == EnumProcessModules( hProcess, &hMod,   sizeof( hMod ), &cbNeeded ) )  {  break;}  // 通過模組控制代碼，擷取模組所在的檔案路徑，此處即為進程路徑。  // 傳的Size為_MAX_PATH，而不是_MAX_PATH+1，是因為保證不會存在溢出問題  if ( 0 == GetModuleFileNameEx( hProcess, hMod, szPath, _MAX_PATH ) )  {  break;  }  #endif#if 1TCHAR szWinPath[_MAX_PATH + 1] = {0};//http://www.codeproject.com/Questions/282205/Get-Path-all-of-opened-Windows-WinAPIHINSTANCE hinstLib; typedef DWORD (WINAPI *FPGetProcessImageFileName)(HANDLE,LPTSTR,DWORD); FPGetProcessImageFileName fpGetProcessImageFileName = NULL; // Get a handle to the DLL module.GetWindowsDirectory(szWinPath,sizeof(szWinPath));path.Format(L"%s\\SYSTEM32\\psapi.dll",szWinPath);////TRACE(L"path:%s",(LPCTSTR)path);hinstLib = ::LoadLibrary((LPCTSTR)path); if (hinstLib != NULL) {#ifdef UNICODE#define GetProcessImageFileNameStr  "GetProcessImageFileNameW"#else#define GetProcessImageFileNameStr  "GetProcessImageFileNameA"#endif // !UNICODE//http://blog.163.com/danshiming@126/blog/static/109412748201141425648762/CString strFunName = _T(GetProcessImageFileNameStr);CStringA strFunNameA(strFunName);fpGetProcessImageFileName = (FPGetProcessImageFileName) ::GetProcAddress(hinstLib, strFunNameA); // If the function address is valid, call the function.if (NULL != fpGetProcessImageFileName) {//if(!fpGetProcessImageFileName(hProcess, szPath, _MAX_PATH))GetLastError();}}else{AfxMessageBox(_T("psapi.dll not found"));}// Free the DLL when you are done.::FreeLibrary(hinstLib);#endif#if 0if(!GetProcessImageFileName(hProcess, szPath, _MAX_PATH))  {  break;  }#endif// 儲存檔案路徑  path = szPath;// //TRACE(L"%s",(LPCTSTR)path);// 尋找成功了  #if 1CString deviceName(_T(""));int num=0;//第三次出現\的位置左邊即為邏輯裝置名//"\Device\HarddiskVolume2\Windows\System32\cmd.exe"for(int i=0;i<path.GetLength();i++){if(path.GetAt(i)=='\\'){num++;if(num == 3){deviceName.Empty();deviceName = path.Left(i);path = path.Right(path.GetLength()-i-1);////TRACE(L"logicVolume:%s,path:%s",logicVolume,path);break;}}}//TRACE(L"deviceName---%s",deviceName);std::map<CString, CString>::iterator iterator1;std::map<CString, CString>::iterator Enditerator1 = m_mapDevicePath.end();for(iterator1 = m_mapDevicePath.begin();iterator1 != Enditerator1; iterator1++){//TRACE(L"iterator---%s",iterator1->first);CStringA left(iterator1->first);CStringA right(deviceName);//TRACE(L"left---%s",left);//TRACE(L"right---%s",right);if(!left.Compare(right)){//TRACE("helloworld");}if(!iterator1->first.Compare(deviceName)){//TRACE(L"iterator===%s",iterator1->first);//TRACE(L"m_mapDevicePath---%s",m_mapDevicePath[deviceName]);deviceName = iterator1->second;break;}}//TRACE(L"deviceName---%s",deviceName);path = deviceName + path;TRACE(L"path---%s",path);cstrPath = path;path.Empty();#endif/******        //兩種由邏輯裝置名映射盤符的解決連結//http://bbs.csdn.net/topics/330144410//IoVolumeDeviceToDosName()//需要ddk驅動神馬的，超級麻煩，驅動用的//vc6.0不支援，被迫遷移到vs8，一下超連結部分的代碼可直接拷貝編譯運行//http://msdn.microsoft.com/en-us/library/cc542456(v=VS.85).aspx******/if(cstrPath.GetLength())bSuccess = TRUE;  } while( 0 );// 釋放控制代碼  if ( NULL != hProcess )  {  CloseHandle( hProcess );  hProcess = NULL;  }  

3、開啟進程

//http://blog.csdn.net/itjobtxq/article/details/6233455SHELLEXECUTEINFO ShExecInfo = {0};ShExecInfo.cbSize = sizeof(SHELLEXECUTEINFO);ShExecInfo.fMask = SEE_MASK_NOCLOSEPROCESS;ShExecInfo.hwnd = NULL;ShExecInfo.lpVerb = NULL;ShExecInfo.lpFile = m_daemonModulePath[i];ShExecInfo.lpParameters =_T("");ShExecInfo.lpDirectory = NULL;ShExecInfo.nShow = SW_SHOW;ShExecInfo.hInstApp = NULL;ShellExecuteEx(&ShExecInfo);WaitForSingleObject(ShExecInfo.hProcess,100);launchedProcess.push_back(m_daemonModulePath[i]);

4、邊邊角角的需求：只啟用一個執行個體；最小化時工作列不顯示，只在後台中運行；再點擊exe的表徵圖，啟用後台進程顯示主視窗

其中需求4的最後一個小需求在vs2008產生的執行檔案裡會失敗

最終程式：

vc6.0                                                                                                              vs2008

工程和可執行檔下載：http://download.csdn.net/detail/lonelyrains/5705883