[DllImport("wininet.dll")]
private extern static bool InternetGetConnectedState(out int connectionDescription, int reservedValue);
private bool IsConnected()
{
int I = 0;
bool state = InternetGetConnectedState(out I, 0);
return state;
}
調用方法:
bool state = IsConnected(); //True 為連通 False 為斷開