在服务程序中创建用户进程的方法

 

1.   创建service时一定要加上 

SERVICE_INTERACTIVE_PROCESS

属性，既允许该服务与桌面进行交互， 否则创建的用户界面不能显示，

例如：

 SC_HANDLE hService = ::CreateService(
        hSCM, m_szServiceName, m_szServiceName,
        SERVICE_ALL_ACCESS, 、
SERVICE_WIN32_OWN_PROCESS | SERVICE_INTERACTIVE_PROCESS,
        SERVICE_DEMAND_START, SERVICE_ERROR_NORMAL,
        szFilePath, NULL, NULL, _T("RPCSS\0"), NULL, NULL);

 2.  创建用户进程方法：

方法1：

   HWND deskton;
    DWORD desktonID;
    HANDLE hProc;
     
    deskton  =  FindWindow( " Progman " ,  " Program Manager " ); //有时候Findwindow这个函数执行不成功, 可以用 GetDesktopWindow(),代替
    GetWindowThreadProcessId(deskton, & desktonID);
    hProc  =  OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,desktonID);
     if  ( hProc  ==  NULL )
     ... {
        return 0;
    }
     if  (  ! OpenProcessToken(hProc,TOKEN_DUPLICATE, & hToken) )
     ... {
        return 0;
    }
     if  ( DuplicateTokenEx(hToken,TOKEN_ALL_ACCESS,NULL,SecurityImpersonation,TokenPrimary, & hTokenNew ))
     ... {
        memset(&startinfo, 0, sizeof(STARTUPINFO));
        startinfo.cb = sizeof(STARTUPINFO);
        startinfo.dwFlags = STARTF_USESHOWWINDOW;
        startinfo.wShowWindow = SW_SHOWNORMAL;
    }  
    CreateProcessAsUser( hTokenNew,
                                         " C:/WINDOWS/system32/notepad.exe " ,
                                          NULL,
                                          NULL,
                                          NULL,
                                          FALSE,
                                          CREATE_DEFAULT_ERROR_MODE,   
                          NULL,
                                          NULL,
                                          & startinfo, & procinfo);

方法2:

HWINSTA hWinSta;

HDESK   hDesk;

hWinSta = ::OpenWindowStation (_T("Winsta0"),false,MAXIMUM_ALLOWED);

if(::SetProcessWindowStation (hWinSta))

{

    TRACE(L"SetProcessWindowStation OK\n");

}

else

{
    TRACE(DBG_VERBOSE,L"SetProcessWindowStation Error\n");

}

hDesk = ::OpenDesktop (_T("Default"),0,false,MAXIMUM_ALLOWED);

if(::SetThreadDesktop (hDesk))

{

    TRACE(L"SetProcessWindowStation OK\n");

}

else

{

    TRACE(L"SetProcessWindowStation Error\n");

}

::ShellExecuteW(GetDesktopWindow (),NULL,_T("C:/WINDOWS/system32/notepad.exe"),NULL,NULL,SW_SHOW);