[Dragonsaurus]

IsPlayerInRangeOfPoint does not really check for squared areas... It was made to checks for spheres (Notice the range parameter).
But you can easily create a function like:

pawn Код:

stock IsPlayerInSquaredArea(playerid, Float:minx, Float:miny, Float:maxx, Float:maxy)
{
    new Float:x, Float:y, Float:z;
    GetPlayerPos(playerid, x, y, z);
    if(minx <= x <= maxx && miny <= y <= maxy) return true;
    else return false;
}

Usage:

pawn Код:

if(IsPlayerInSquaredArea(playerid, 123.123, 234.234, 123.123, 234.234)
SendClientMessage(playerid, -1, "You are inside the squared area");

Or you can use Incognito's streamer.