uses Wininet
function TForm1.isOnline: boolean;
var ConTypes : Integer;
begin
ConTypes := INTERNET_CONNECTION_MODEM + INTERNET_CONNECTION_PROXY;
if (InternetGetConnectedState(@ConTypes, 0) = False)
then Result := False
else Result := True;
end;详情可查MSDN
function TForm1.isOnline: boolean;
var ConTypes : Integer;
begin
ConTypes := INTERNET_CONNECTION_MODEM + INTERNET_CONNECTION_PROXY;
if (InternetGetConnectedState(@ConTypes, 0) = False)
then Result := False
else Result := True;
end;详情可查MSDN
解决方案 »
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