How can I catch a checkbox event?

Hello,

I want to use the abap's events to catch the checkbox left click in an classical Dynpro. My questions are:

It´s possible?

If it's possibble, where can i get some documentation?

I find this weblog /people/thomas.jung3/blog/2005/09/08/oo-abap-dynpro-programming but it's so complicate...

Thanks.