Adding Events handler by code

Hi, Bertrand.

No, there is no way to automate the process of adding event handlers. Every time you add a new event handler, you will have to do this manually via the Event Control editor.

For more information on creating event handlers in TestComplete, please refer to Creating Event Handlers in TestComplete.

Also, there is a help topic that describes creating event handlers for the OnUnexpectedWindow event (that you've mentioned) in detail: Creating an Event Handler for the OnUnexpectedWindow Event.