Gtk.Object_Expression

Description

A GObject value in a GtkExpression.

Create

function Create
   (Object : not null access System.Address)
    return Gtk_Object_Expression_Record

Parameters

Object

Return Value

Get_Object

function Get_Object
   (Self : Gtk_Object_Expression) return Glib.Object.GObject

Gets the object that the expression evaluates to.

Parameters

Self

Return Value

the object, or NULL. Has transfer-ownership='none'.

Get_Type

function Get_Type return Glib.GType

Return Value

Gtk_New

procedure Gtk_New
   (Self   : out Gtk_Object_Expression;
    Object : not null access Glib.Object.GObject_Record'Class)

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]. Initialize does nothing if the object was already created with another call to Initialize* or G_New.

Parameters

Self

Object

object to watch

Gtk_Object_Expression

type Gtk_Object_Expression is access all Gtk_Object_Expression_Record'Class;

Gtk_Object_Expression_New

function Gtk_Object_Expression_New
   (Object : not null access Glib.Object.GObject_Record'Class)
    return Gtk_Object_Expression

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

object to watch

Return Value

Gtk_Object_Expression_Record

type Gtk_Object_Expression_Record is new Gtk_Expression_Record with null record;

Initialize

procedure Initialize
   (Self   : not null access Gtk_Object_Expression_Record'Class;
    Object : not null access Glib.Object.GObject_Record'Class)

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]. Initialize does nothing if the object was already created with another call to Initialize* or G_New.

Parameters

Self

Object

object to watch