Замените свой оператор
switch (N) { case 0: PRESS_KEY(VOL_up) ; break; case 1: PRESS_KEY(VOL_down); break; case 2: PRESS_KEY(SRC) ; break; case 3: PRESS_KEY(FORWARD) ; break; case 4: PRESS_KEY(REVERCE) ; break; case 5: PRESS_KEY(ATT) ; break; case 6: PRESS_KEY(FM_up) ; break; case 7: PRESS_KEY(AM_down) ; break; case 8: PRESS_KEY(AUD) ; break; case 9: PRESS_KEY(PAUSE) ; break; default: break; // выходим }

НА вызов функции:
void HandleLocalSwitch(int N)
{
TypeKeys keys[10]={.....}
PRESKEY(keys[N]);
}