[GTAguillaume]

It don't work in commands, you will have to change your command(s).
Example

Код:

new Float:x,Float:Y,Float:Z;
for(new i;i<MAX_PLAYERS;i++)if(IsPlayerInRangeOfPoint(playerid,RANGE, x,y,z))SendClientMessage(i,COLOR,MESSAGE); // change RANGE, COLOR and MESSAGE