Class: Gtk::ObjectExpression

Inherits:

Expression

• Object
• Expression
• Gtk::ObjectExpression

Defined in:

(unknown)

Overview

A GObject value in a GtkExpression.

Instance Method Summary

• #initialize(object) ⇒ Gtk::ObjectExpression constructor

  Creates an expression evaluating to the given object with a weak reference.

• #object ⇒ GObject::Object

  Gets the object that the expression evaluates to.

Methods inherited from Expression

#bind, #evaluate, #is_static, #ref, #unref, #value_type, #watch

Constructor Details

#initialize(object) ⇒ Gtk::ObjectExpression

Creates an expression evaluating to the given object with a weak reference.

Once the object is disposed, it will fail to evaluate.

This expression is meant to break reference cycles.

If you want to keep a reference to object, use [ctorGtk.ConstantExpression.new].

Parameters:

• object (GObject::Object) —

  object to watch

Instance Method Details

#object ⇒ GObject::Object

Gets the object that the expression evaluates to.

Returns:

• (GObject::Object) —

  the object, or NULL