layout->children() of size 0, even after layout->addWidget

[anda_skoa]

Does layout->children() not include QWidgets added with addWidget?

No.

The parent of a widget is either 0 or another widget.
So QLayout is never a parent of a widget, so widget's never appear in a layout's children() list.

How can I add QWidgets to a layout so that I can use findChild by its name?

The layout is just arranging widgets on behalf of a parent widget, which you can use as a starting point for findChild().

Chers,
_