QScrollArea With Custom Widgets

[jpn]

You must create another widget that you will set as the scroll area contents with QScrollArea::setWidget and then create your buttons with this widget as parent.

He is doing so:

QScrollArea* qs = new QScrollArea;
qs->setWidget(ctable);

QScrollArea* qs = new QScrollArea;
qs->setWidget(ctable);

To copy to clipboard, switch view to plain text mode 

Also, the grid layout must be set for this widget.

He is doing that too:

QGridLayout *lay = new QGridLayout;
setLayout(lay);

QGridLayout *lay = new QGridLayout;
setLayout(lay);

To copy to clipboard, switch view to plain text mode 

It's just the actual usage of the layout that's missing.