QObject::findChildren

[qcoderpro]

Hi,

What does "immediate children" mean here: https://doc.qt.io/qt-5/qobject.html#findChildren please?

I can't understand this.
Will you give an example that shows the different between "Qt::FindDirectChildrenOnly" and "Qt::FindChildrenRecursively"?

[sierdzio]

Parent and children form a tree. A direct search looks only among QWidget::children(). A recursive search will also look among children() of all objects returned by the direct call.

So for a short example:

QMainWindow
 - QLabel
 - QLineEdit
 - QWidget
 |-- QTreeView
 |-- QSomething

A direct search will return only QLabel and QLineEdit. A recursive search can return QLabel, QLineEdit, QTreeView and QSomething.

[Christian Ehrlicher]

A widget has a layout and therefore can contain other widgets itself.

[sierdzio]

Parent and children form a tree. A direct search looks only among QWidget::children(). A recursive search will also look among children() of all objects returned by the direct call.

So for a short example:

QMainWindow
 - QLabel
 - QLineEdit
 - QWidget
 |-- QTreeView
 |-- QSomething

A direct search will return only QLabel and QLineEdit. A recursive search can return QLabel, QLineEdit, QTreeView and QSomething.

[qcoderpro]

@sierdzio

A direct search will return only QLabel and QLineEdit.

And the QWidget too, yes?

A recursive search can return QLabel, QLineEdit, QTreeView and QSomething.

And again, the QWidget too, yes?

[JonB]

@qcoderpro
Yes, in both cases the QWidget would be included.

[sierdzio]

Yep, sure, QWidget too.