Gtk.Property_Expression

Description

A GObject property value in a GtkExpression.

Create

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

Parameters

Object

Return Value

Get_Expression

function Get_Expression
   (Self : Gtk_Property_Expression) return Gtk.Expression.Gtk_Expression

Gets the expression specifying the object of a property expression.

Parameters

Self

Return Value

the object expression. Has transfer-ownership='none'.

Get_Pspec

function Get_Pspec
   (Self : Gtk_Property_Expression) return Glib.Param_Spec

Gets the GParamSpec specifying the property of a property expression.

Parameters

Self

Return Value

the GParamSpec for the property

Get_Type

function Get_Type return Glib.GType

Return Value

Gtk_New

procedure Gtk_New
   (Self          : out Gtk_Property_Expression;
    This_Type     : GType;
    Expression    : Gtk.Expression.Gtk_Expression;
    Property_Name : UTF8_String)

Creates an expression that looks up a property. The object to use is found by evaluating the expression, or using the this argument when expression is NULL. If the resulting object conforms to this_type, its property named property_name will be queried. Otherwise, this expression's evaluation will fail. The given this_type must have a property with property_name. Initialize does nothing if the object was already created with another call to Initialize* or G_New.

Parameters

Self

This_Type

The type to expect for the this type

Expression

Expression to evaluate to get the object to query or NULL to query the this object. Has transfer-ownership='full'.

Property_Name

name of the property

Gtk_New_For_Pspec

procedure Gtk_New_For_Pspec
   (Self       : out Gtk_Property_Expression;
    Expression : Gtk.Expression.Gtk_Expression;
    Pspec      : Glib.Param_Spec)

Creates an expression that looks up a property. The object to use is found by evaluating the expression, or using the this argument when expression is NULL. If the resulting object conforms to this_type, its property specified by pspec will be queried. Otherwise, this expression's evaluation will fail. Initialize_For_Pspec does nothing if the object was already created with another call to Initialize* or G_New.

Parameters

Self

Expression

Expression to evaluate to get the object to query or NULL to query the this object. Has transfer-ownership='full'.

Pspec

the GParamSpec for the property to query

Gtk_Property_Expression

type Gtk_Property_Expression is access all Gtk_Property_Expression_Record'Class;

Gtk_Property_Expression_New

function Gtk_Property_Expression_New
   (This_Type     : GType;
    Expression    : Gtk.Expression.Gtk_Expression;
    Property_Name : UTF8_String) return Gtk_Property_Expression

Creates an expression that looks up a property. The object to use is found by evaluating the expression, or using the this argument when expression is NULL. If the resulting object conforms to this_type, its property named property_name will be queried. Otherwise, this expression's evaluation will fail. The given this_type must have a property with property_name.

Parameters

This_Type

The type to expect for the this type

Expression

Expression to evaluate to get the object to query or NULL to query the this object. Has transfer-ownership='full'.

Property_Name

name of the property

Return Value

Gtk_Property_Expression_New_For_Pspec

function Gtk_Property_Expression_New_For_Pspec
   (Expression : Gtk.Expression.Gtk_Expression;
    Pspec      : Glib.Param_Spec) return Gtk_Property_Expression

Creates an expression that looks up a property. The object to use is found by evaluating the expression, or using the this argument when expression is NULL. If the resulting object conforms to this_type, its property specified by pspec will be queried. Otherwise, this expression's evaluation will fail.

Parameters

Expression

Expression to evaluate to get the object to query or NULL to query the this object. Has transfer-ownership='full'.

Pspec

the GParamSpec for the property to query

Return Value

Gtk_Property_Expression_Record

type Gtk_Property_Expression_Record is new Gtk_Expression_Record with null record;

Initialize

procedure Initialize
   (Self          : not null access Gtk_Property_Expression_Record'Class;
    This_Type     : GType;
    Expression    : Gtk.Expression.Gtk_Expression;
    Property_Name : UTF8_String)

Creates an expression that looks up a property. The object to use is found by evaluating the expression, or using the this argument when expression is NULL. If the resulting object conforms to this_type, its property named property_name will be queried. Otherwise, this expression's evaluation will fail. The given this_type must have a property with property_name. Initialize does nothing if the object was already created with another call to Initialize* or G_New.

Parameters

Self

This_Type

The type to expect for the this type

Expression

Expression to evaluate to get the object to query or NULL to query the this object. Has transfer-ownership='full'.

Property_Name

name of the property

Initialize_For_Pspec

procedure Initialize_For_Pspec
   (Self       : not null access Gtk_Property_Expression_Record'Class;
    Expression : Gtk.Expression.Gtk_Expression;
    Pspec      : Glib.Param_Spec)

Creates an expression that looks up a property. The object to use is found by evaluating the expression, or using the this argument when expression is NULL. If the resulting object conforms to this_type, its property specified by pspec will be queried. Otherwise, this expression's evaluation will fail. Initialize_For_Pspec does nothing if the object was already created with another call to Initialize* or G_New.

Parameters

Self

Expression

Expression to evaluate to get the object to query or NULL to query the this object. Has transfer-ownership='full'.

Pspec

the GParamSpec for the property to query