[Jafet_Macario]

You don't even need to use sscanf.

pawn Код:

CMD:o(playerid, params[]) 
{
    new string[128], pname[MAX_PLAYER_NAME];
    if(OOC == false) return SendClientMessage(playerid, COLOR_GREY, "SERVER: The OOC chat is turned off.");
    if(isnull(params)) return SendClientMessage(playerid, COLOR_GREY, "USAGE: /o (message)");
    GetPlayerName(playerid, pname, sizeof(pname));
    format(string, sizeof(string), "(( OOC: %s: %s ))", pname, params);
    SendClientMessageToAll(COLOR_GREY, string);
    return 1;
}