How to capture event when user closes browser window?

asked 2011-12-12 16:50:21 +0800

carpolva
155 ● 4

Hi !!

Just one question:

If the user closes the browser window (pressing the "X" or close button in the top right corner) how can I capture that event and show a Messagebox warning the user for example "you haven't saved changes yet, are you sure you want to close the window?". Is there any way to do this in ZK or I need to use pure JavaScript?.

I'll appreciate any help.

Regards.