Click Execute ▹ Stop Debugging to terminate the debugging session. The debug server will continue to run and accept further connections as long as HDevEngine keeps running. In case the external application is currently stopped at the moment the session is terminated, HDevelop will offer to resume the execution before disconnecting. Otherwise, the thread executing the procedure calls will be frozen until you reconnect and continue running it.
The debugging session will also be terminated if the external application itself stops the debug server or if the session is taken over by a subsequent connection.