Using Delphi XE8 and the Chilkat Delphi DLL.
How can a progress bar be hooked in? I can't find an example.
Unfortunately, it's possible to get event callbacks using the Chilkat ActiveX with Delphi, but not using the Chilkat Delphi DLL (non-ActiveX). This will be investigated at some point in the future, but not anytime soon..
In the future, Chilkat will probably work on generating Delphi classes that expose properties and methods which call into the DLL functions. We'll see about implementing callbacks (if it's possible) at that time. But it won't be soon -- there are other projects that must be completed first..