Как установить (узнать) приоритет потока

{
 HANDLE threadHandle = GetCurrentThread();
 if (!SetThreadPriority(threadHandle, THREAD_PRIORITY_HIGHEST))
 RET_ERR("SetThreadPriority");

 int priority = GetThreadPriority(threadHandle);
 if (priority == THREAD_PRIORITY_ERROR_RETURN)
 RET_ERR("GetThreadPriority");
 switch (priority)
 {
 case THREAD_PRIORITY_ABOVE_NORMAL:
 ADD_STR("THREAD_PRIORITY_ABOVE_NORMAL\r\n");
 break;
 case THREAD_PRIORITY_BELOW_NORMAL:
 ADD_STR("THREAD_PRIORITY_BELOW_NORMAL\r\n");
 break;
 case THREAD_PRIORITY_HIGHEST:
 ADD_STR("THREAD_PRIORITY_HIGHEST\r\n");
 break;
 case THREAD_PRIORITY_IDLE:
 ADD_STR("THREAD_PRIORITY_IDLE\r\n");
 break;
 case THREAD_PRIORITY_LOWEST:
 ADD_STR("THREAD_PRIORITY_LOWEST\r\n");
 break;
 case THREAD_PRIORITY_NORMAL:
 ADD_STR("THREAD_PRIORITY_NORMAL\r\n");
 break;
 case THREAD_PRIORITY_TIME_CRITICAL:
 ADD_STR("THREAD_PRIORITY_TIME_CRITICAL\r\n");
 break;
 default:
 ADD_STR("Unknown\r\n");
 }
 return result_buffer;
}