There is a "Highlander restriction" on the progress handler. There can only be one (per Connection). And the application is expected to know which one to set. So yes, if you need to know the registered handler, you must track this info yourself.
There is a "Highlander restriction" on the progress handler. There can only be one (per Connection). And the application is expected to know which one to set. So yes, if you need to know the registered handler, you must track this info yourself.