PROGRAM GRAFICA(output);
uses
Graph;
var
grDriver : Integer;
grMode : Integer;
ErrCode : Integer;
a:integer;
begin
grDriver := Detect;
InitGraph(grDriver,grMode,'');
ErrCode := GraphResult;
if ErrCode = grOk then
begin
{ Do graphics }
line(0, 0, 640, 480);
PUTPIXEL(100,100,3);
ReadLn;
CloseGraph;
end
else
WriteLn('Graphics error:',
GraphErrorMsg(ErrCode));
end.