HTTPApp

TWebExceptionEvent is the type for event handlers that handle exceptions for a Web server application. 

Sender is the dispatcher component that caught the exception. 

E is the exception object for the exception that arose. 

Handled returns true if the event handler took care of the exception. If the event handler returns false as the value of Handled, the Web server application performs its default response to exceptions. This default response varies, depending on the dispatcher. 

TCustomWebAppComponents 

TCustomWebDispatcher 

Procedural types 

Creating events