class Gtk::ClosureExpression

Overview

An expression using a custom GClosure to compute the value from its parameters.

Defined in:

lib/gi-crystal/src/auto/gtk-4.0/closure_expression.cr

Constructors

Class Method Summary

Instance methods inherited from class Gtk::Expression

bind(target : GObject::Object, property : String, this_ : GObject::Object?) : Gtk::ExpressionWatch bind, evaluate(this_ : GObject::Object?, value : _) : Bool evaluate, finalize finalize, is_static : Bool is_static, to_unsafe : Pointer(Void) to_unsafe, value_type : UInt64 value_type, watch(this_ : GObject::Object?, notify : Gtk::ExpressionNotify) : Gtk::ExpressionWatch watch

Class methods inherited from class Gtk::Expression

g_type : UInt64 g_type

Constructor Detail

def self.new(value_type : UInt64, closure : GObject::Closure, params : Enumerable(Gtk::Expression)?) : self #

Creates a Gtk::Expression that calls closure when it is evaluated.

closure is called with the this object and the results of evaluating the params expressions.


def self.new #

Initialize a new ClosureExpression.


Class Method Detail

def self.g_type : UInt64 #

Returns the type id (GType) registered in GLib type system.