This creates a new #GAction that will change when the underlying child property of @container changes for @child.
the name of the action
the container of the widget
the widget for the child property
the name of the child property
A new #DzlChildPropertyAction.
ConstructionException GTK+ fails to create the object.
See Implementation
This creates a new #GAction that will change when the underlying child property of @container changes for @child.