The [property@Gtk.Constraint:source] and [property@Gtk.Constraint:target]
properties of constraint can be:
- set to NULL to indicate that the constraint refers to the
widget using layout
- set to the [class@Gtk.Widget] using layout
- set to a child of the [class@Gtk.Widget] using layout
- set to a [class@Gtk.ConstraintGuide] that is part of layout
The @layout acquires the ownership of @constraint after calling
this function.
Adds a constraint to the layout manager.
The [property@Gtk.Constraint:source] and [property@Gtk.Constraint:target] properties of constraint can be:
- set to NULL to indicate that the constraint refers to the widget using layout - set to the [class@Gtk.Widget] using layout - set to a child of the [class@Gtk.Widget] using layout - set to a [class@Gtk.ConstraintGuide] that is part of layout
The @layout acquires the ownership of @constraint after calling this function.