c sample sharing for determining network connection status

public partial class Form1 : Form {
[DllImport("wininet.dll")]
private extern static bool getInterState(out int conn, int val);
public Form1()  {
InitializeComponent();  
getNet(); 
} 
// Determines whether the current connection is in Internet network 
private void getNet()
{
int Out;
if (getInterState(out Out, 0) == true)
{
label1.Text = "  The network is connected! ";
}else{
label1.Text = "  The network failed to connect! "; 
} 
}
}