[arakuta]

pawn Код:

CMD:dm(playerid, params[])
{
    SetPVarInt(playerid,"InDM",1);
    SendClientMessage(playerid, 0xFFFFFFFF, "You are in DM");
    return 1;
}

You can now use

pawn Код:

GetPVarInt(playerid,"InDM");

Anywhere.