[Qt-interest] layout and QTreeWidget

[Yixun Liu]

Hi,
I have two problems.
1. I use QVBoxLayour to align two widgets. I want the bottom one to
maintain square shape as I resize.  How to do it?
2. I use QTreeWidge with check box. I want to send a single when I
change the state of the checkbox. However I try all the signals
mentioned in QTreeWidget class reference and only signal
itemSelectionChanged() can connect to my slot, but it is not what I want
signal.

Thank.

Yixun