{Grfreslt.PAS}
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 {Sample code for the GraphResult function.}

  uses Graph;

 var
   ErrorCode: Integer;
   GrDriver, GrMode: Integer;
 begin
   GrDriver := Detect;
   InitGraph(GrDriver, GrMode, '');
   ErrorCode := GraphResult;   { Check for errors }
   if ErrorCode <> grOk then
   begin
     Writeln('Graphics error:');
     Writeln(GraphErrorMsg(ErrorCode));
     Writeln('Program aborted...');
     Halt(1);
   end;
   ClearDevice;   { Do some graphics... }
   Rectangle(0, 0, GetMaxX, GetMaxY);
   Readln;
   CloseGraph;
 end.