how to change functionality of tab to up and down arrows

[maverick]

i have to change the key board,which has only up and down keys to navigate through widgets....for this reason need to change the funtionallity of tab to up, down keys...

please help

[Lykurg]

How about installing an event filter?

[maverick]

it didn't work...

[Lykurg]

Hm, then can you provide a minimal compilable example for that.