Catch standard eventing

Hi experts:

As you can see in this document:

/people/thomas.jung3/blog/2005/12/15/portal-eventing-a-solution-for-global-peace-and-harmony

We can trigger and catch portal events if we send the event from one ABAP WD to another one.

I want to create a WD Page in the portal composed by standard WD and non Standard ones. So, my question is the next one: Is it posible to catch from a non standard ABAP WD an even triggered by clicking, for example, in a standard one?.

Thank you all ¡¡!!