SDL2: Automatic pause when exit to home

[jenergy]

Hello,
I'm working on a port on the switch of a project written in pure c, using LIBSDL2.
All works good, except that when pressing home button, to go back to main Switch screen, my program still goes on. I'd like to automatic pause it instead, and to resume it on reclick.
Which is the best way to obtain this behaviour?
The 'pause' behaviour is already implemented in my application, so I can call it, if I only could catch the event <button home clicked>..so how can I intercept this event?
Maybe that's an SDL2 management?
Thank you

[WinterMute]

It's not possible to intercept the home button event, sorry.