ID Der Taste "H" bei OnPlayerKeyStateChange

Hallo Community,
welche id hat die Taste "H" bei OnPlayerKeyStateChange
Und wie mache ich es das man wenn man vor einem Tor steht und taste H drückt, dass es nur auf geht wenn ich im auto bin?

Wie mache ich die Abfrage des Autos?

Ich habe KEY_CTRL_BACK genommen.
Die Sirene geht zwar an, aber nicht aus.

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
if(newkeys & KEY_CTRL_BACK)
{
if(sirene[playerid] == false)
{
new vehid = GetPlayerVehicleID(playerid);
if(GetVehicleModel(vehid) == 451 && sfl1[vehid] == 0) // Turismo
{
sfl1[vehid] = CreateObject(19292,0,0,-1000,0,0,0,100);
sfl2[vehid] = CreateObject(19292,0,0,-1000,0,0,0,100);
sfl3[vehid] = CreateObject(19290,0,0,-1000,0,0,0,100);
sfl4[vehid] = CreateObject(19290,0,0,-1000,0,0,0,100);
sfl5[vehid] = CreateObject(19419,0,0,-1000,0,0,0,100);
AttachObjectToVehicle(sfl1[vehid],vehid,-0.000000,2.250000,0.000000,0.000000,0.000000,0.000000);
AttachObjectToVehicle(sfl2[vehid],vehid,0.000000,2.250000,0.000000,0.000000,0.000000,0.000000);
AttachObjectToVehicle(sfl3[vehid],vehid,0.000000,2.275000,0.000000,0.000000,0.000000,0.000000);
AttachObjectToVehicle(sfl4[vehid],vehid,-0.000000,2.275000,0.000000,0.000000,0.000000,0.000000);
AttachObjectToVehicle(sfl5[vehid], vehid, -0.000000, -0.704999, 0.544999, 0.000000, 0.000000, 0.000000);
sirene[playerid] = true;
}
}
else if(sirene[playerid] == true)
{
DestroyObject(sfl1[GetPlayerVehicleID(playerid)]);
DestroyObject(sfl2[GetPlayerVehicleID(playerid)]);
DestroyObject(sfl3[GetPlayerVehicleID(playerid)]);
DestroyObject(sfl4[GetPlayerVehicleID(playerid)]);
DestroyObject(sfl5[GetPlayerVehicleID(playerid)]);
sfl1[GetPlayerVehicleID(playerid)] = 0;
sfl2[GetPlayerVehicleID(playerid)] = 0;
sfl3[GetPlayerVehicleID(playerid)] = 0;
sfl4[GetPlayerVehicleID(playerid)] = 0;
sfl5[GetPlayerVehicleID(playerid)] = 0;
sirene[playerid] = false;
}
}
return 1;
}