class Gtk::ClosureExpression


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

Defined in:



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 : UInt64, closure : GObject::Closure, params : Enumerable(Gtk::Expression)?) : self #

Creates a GtkExpression that calls closure when it is evaluated.

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

def #

Initialize a new ClosureExpression.

Class Method Detail

def self.g_type : UInt64 #

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