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서비스 구성 변경

서비스 구성 프로그램은ChangeServiceConfigChangeServiceConfig2 함수를 사용하여 설치된 서비스의 구성 매개 변수를 변경합니다. 프로그램은 서비스 개체에 대한 핸들을 열고 해당 구성을 수정한 다음 서비스 개체 핸들을 닫습니다.

다음 예제에서 DoDisableSvc 함수는 ChangeServiceConfig 를 사용하여 서비스 시작 유형을 "Disabled"로 변경하고, DoEnableSvc 함수는 ChangeServiceConfig 를 사용하여 서비스 시작 유형을 "사용"으로 변경하고, DoUpdateSvcDesc 함수는 ChangeServiceConfig2 를 사용하여 서비스 설명을 "테스트 설명입니다"로 설정합니다. szSvcName 변수는 서비스 이름을 포함하는 전역 변수입니다. 이 변수를 설정하는 전체 예제는 SvcConfig.cpp를 참조하세요.

//
// Purpose: 
//   Disables the service.
//
// Parameters:
//   None
// 
// Return value:
//   None
//
VOID __stdcall DoDisableSvc()
{
    SC_HANDLE schSCManager;
    SC_HANDLE schService;

    // Get a handle to the SCM database. 
 
    schSCManager = OpenSCManager( 
        NULL,                    // local computer
        NULL,                    // ServicesActive database 
        SC_MANAGER_ALL_ACCESS);  // full access rights 
 
    if (NULL == schSCManager) 
    {
        printf("OpenSCManager failed (%d)\n", GetLastError());
        return;
    }

    // Get a handle to the service.

    schService = OpenService( 
        schSCManager,            // SCM database 
        szSvcName,               // name of service 
        SERVICE_CHANGE_CONFIG);  // need change config access 
 
    if (schService == NULL)
    { 
        printf("OpenService failed (%d)\n", GetLastError()); 
        CloseServiceHandle(schSCManager);
        return;
    }    

    // Change the service start type.

    if (! ChangeServiceConfig( 
        schService,        // handle of service 
        SERVICE_NO_CHANGE, // service type: no change 
        SERVICE_DISABLED,  // service start type 
        SERVICE_NO_CHANGE, // error control: no change 
        NULL,              // binary path: no change 
        NULL,              // load order group: no change 
        NULL,              // tag ID: no change 
        NULL,              // dependencies: no change 
        NULL,              // account name: no change 
        NULL,              // password: no change 
        NULL) )            // display name: no change
    {
        printf("ChangeServiceConfig failed (%d)\n", GetLastError()); 
    }
    else printf("Service disabled successfully.\n"); 

    CloseServiceHandle(schService); 
    CloseServiceHandle(schSCManager);
}

//
// Purpose: 
//   Enables the service.
//
// Parameters:
//   None
// 
// Return value:
//   None
//
VOID __stdcall DoEnableSvc()
{
    SC_HANDLE schSCManager;
    SC_HANDLE schService;

    // Get a handle to the SCM database. 
 
    schSCManager = OpenSCManager( 
        NULL,                    // local computer
        NULL,                    // ServicesActive database 
        SC_MANAGER_ALL_ACCESS);  // full access rights 
 
    if (NULL == schSCManager) 
    {
        printf("OpenSCManager failed (%d)\n", GetLastError());
        return;
    }

    // Get a handle to the service.

    schService = OpenService( 
        schSCManager,            // SCM database 
        szSvcName,               // name of service 
        SERVICE_CHANGE_CONFIG);  // need change config access 
 
    if (schService == NULL)
    { 
        printf("OpenService failed (%d)\n", GetLastError()); 
        CloseServiceHandle(schSCManager);
        return;
    }    

    // Change the service start type.

    if (! ChangeServiceConfig( 
        schService,            // handle of service 
        SERVICE_NO_CHANGE,     // service type: no change 
        SERVICE_DEMAND_START,  // service start type 
        SERVICE_NO_CHANGE,     // error control: no change 
        NULL,                  // binary path: no change 
        NULL,                  // load order group: no change 
        NULL,                  // tag ID: no change 
        NULL,                  // dependencies: no change 
        NULL,                  // account name: no change 
        NULL,                  // password: no change 
        NULL) )                // display name: no change
    {
        printf("ChangeServiceConfig failed (%d)\n", GetLastError()); 
    }
    else printf("Service enabled successfully.\n"); 

    CloseServiceHandle(schService); 
    CloseServiceHandle(schSCManager);
}

//
// Purpose: 
//   Updates the service description to "This is a test description".
//
// Parameters:
//   None
// 
// Return value:
//   None
//
VOID __stdcall DoUpdateSvcDesc()
{
    SC_HANDLE schSCManager;
    SC_HANDLE schService;
    SERVICE_DESCRIPTION sd;
    LPTSTR szDesc = TEXT("This is a test description");

    // Get a handle to the SCM database. 
 
    schSCManager = OpenSCManager( 
        NULL,                    // local computer
        NULL,                    // ServicesActive database 
        SC_MANAGER_ALL_ACCESS);  // full access rights 
 
    if (NULL == schSCManager) 
    {
        printf("OpenSCManager failed (%d)\n", GetLastError());
        return;
    }

    // Get a handle to the service.

    schService = OpenService( 
        schSCManager,            // SCM database 
        szSvcName,               // name of service 
        SERVICE_CHANGE_CONFIG);  // need change config access 
 
    if (schService == NULL)
    { 
        printf("OpenService failed (%d)\n", GetLastError()); 
        CloseServiceHandle(schSCManager);
        return;
    }    

    // Change the service description.

    sd.lpDescription = szDesc;

    if( !ChangeServiceConfig2(
        schService,                 // handle to service
        SERVICE_CONFIG_DESCRIPTION, // change: description
        &sd) )                      // new description
    {
        printf("ChangeServiceConfig2 failed\n");
    }
    else printf("Service description updated successfully.\n");

    CloseServiceHandle(schService); 
    CloseServiceHandle(schSCManager);
}

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