INTERNET_CONNECTION_LAN = 2;
INTERNET_CONNECTdState';
{$R *.DFM}
procedure TForm1.CheckState(Sender: TObject);
var
dwConnectionTypes: DWORD;
begin
dwConnectionTypes:=IC_MODEM+IC_LAN+IC_PROXY;
if InternetGetConnectedState(@dwConnectionTypes,0) then
ShowMessage('Youa connected')
else
ShowMessage('No Connection');
end;