[CalvinC]

Use OnPlayerKeyStateChange.
List of keys: https://sampwiki.blast.hk/wiki/Keys

Example:

pawn Код:

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
    if((newkeys & KEY_CROUCH) && !(oldkeys & KEY_CROUCH) || (newkeys & KEY_FIRE) && !(oldkeys & KEY_FIRE)) TextDrawHideForPlayer(playerid, TextDrawName);
    return 1;
}