Question

I have application that needs to load local html file if user is offline, if not it will load his web application via embedded control.

How to check if user is online with c++ desktop application that has embedded ie browser control?

Answer 1

You can try using the InternetGetConnectedState function. However, make sure you honor the comments given in the Remarks section, especially:

A return value of TRUE from InternetGetConnectedState indicates that
at least one connection to the Internet is available

You may also try to directly use the InternetCheckConnection function for your particular URL.

There are also newer COM interfaces that have the same (or better) functionality:

• INetworkListManager::GetConnectivity()
• INetworkListManager::get_IsConnectedToInternet()