void UppCadDocument::commandLoop(void)
{
	// loop not ended
	INTERLOCKED_(mutex)
	{
		loopEnded = false;
	}
	while(!Thread::IsShutdownThreads())
	{
            String currentCommand;
            {
                Mutex::Lock __(commandLineMutex)
	        currentCommand = commandLine;
            }
		if(currentCommand.HasCommand())
		{
			String cmd = currentCommand.GetCommand();
			if(cmd != "<ESC>" && cmd != "")
				SendCommand(cmd);
		}
		Sleep(100);
	}
	// loop ended
	INTERLOCKED_(mutex)
	{
		loopEnded = true;
	}
}