Catch Back Button event from ECC in WD Application

Hi Experts,

I have created a WD Application and assigned it to a T-Code.

As you all aware that, we have a back button in ECC. Now I prefers that, if the user selects back button, I need to confirm with a Pop Up message in the same screen.

But I wonder like how I can get the ECC event within my Web Dynpro application.

Is it possible? Please highlights your valuable ideas.

With Regards,

Ramakrishnan M.