Change the click event of apps

There are our apps in ERP desk, and we can link to its default page after click its icon. However, I want to change the click event of this, is there anyone has experience or know where the file which handling the event? Thx.

Can you please elaborate what you want to do?
You will have to add a click handler yourself, in your custom app.

Take a look at this code which sets up the desktop icon click.

Thank you very much!! I have completed the click event of app-icon.