rem: return _control_input_server_(&command, &reply) == B_OK;
add: return _control_input_server_(&command, &reply);
context: set_mouse_type(int32 type){	BMessage command(IS_SET_MOUSE_TYPE);	BMessage reply;	command.AddInt32("mouse_type", type);	return _control_input_server_(&command, &reply) == B_OK;}