How to detect the ubuntu shut down button pressed or not?

[vIJI]

Hi,
I want to pop up/Run my GUI application whenever shut down button is pressed in ubuntu 14.04.
Any help how do i do this..

Thank you.

[Ratzz]

@vIJI
May be aboutToQuit() helps you .

[kshegunov]

Hello,
If you want to actually connect to the hardware event, that may not be easy at all, otherwise this might be useful.

[SGaist]

Hi,

Do you mean you would like to do something when it's shutting down i.e. save the state of your application ? Or react on the button itself ?

[vIJI]

Thank you guys for your answers but, can you explain me in steps , i am new to Qt so, @SGaist yup, exactly i want to see popping up of my Qt application on shut down button pressed.

Apologies,
Thank you.

[vIJI]

@Ratzz nope its not working.

Thank you.

[vIJI]

@SGaist
i want my application to popup whenever shutdown button is pressed

[SGaist]

What do you need it to do ? Save the state of your application ? Block the shutdown ?