Delphi unit to check Online state
In this solution you'll find a Multicast Event class. "All Creditc to ALLEN, and his blogpost Multicast events using generics". This is mainly his code. There have only been added support for 64 bit.
- Checks the connection to the Internet every X seconds
- When online state changed, event are send out to multible listeners with the new state.
In this solution, different techniques have been Implemented.
- Singleton patteren
- Multicast Events
- Garbage collection, autumatic cleanup of the global instance of TOnlineOffline
- Class decstructor
- Use of TTask
The demo application fills your screen with small boxes (forms) and colors them Gereen or Red for Online and Onnline. The demo application also shows how to force a new shate, and how to change the ScanningInterval.
