Question and Answer Database
FAQ: FAQ4714C — Detecting at runtime whether or not you are connected to the internet.
Category: Internet/WEB
Platform: All-32Bit
Product: C++Builder3.x, C++Builder4.x,
Question:
How can I tell at runtime if I am connected to the internet?
Answer:
You can use the NetMasters Powersock component to retrieve the Local IP
address. If it is "0.0.0.0" then there is no connection.
Example:
void __fastcall TForm1::Button1Click(TObject *Sender)
{
if (Powersock1->LocalIP == "0.0.0.0")
ShowMessage("not connected");
else
ShowMessage(Powersock1->LocalIP);
}
8/4/99 11:55:54 AM
Last Modified: 01-SEP-99