[Toreno]

Try this, not tested though;

pawn Код:

#define HOLDING(%0) ((newkeys & (%0)) == (%0))
#define RELEASED(%0) (((newkeys & (%0)) != (%0)) && ((oldkeys & (%0)) == (%0)))
public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
    new udlr, ud, lr;
    GetPlayerKeys(playerid, udlr, ud, lr);
    if(HOLDING(KEY_WALK) && ud > 0 || HOLDING(KEY_WALK) && ud < 0 || HOLDING(KEY_WALK) && lr > 0 || HOLDING(KEY_WALK) && lr < 0) {
        // Once a player presses ALT and one of the arrows.
    } else if(RELEASED(KEY_WALK)) {
        // Once a player releases ALT.
    }
    return 1;
}