Gtk-4.0 ▶ Gtk ▶ ExpressionWatchAbstract

constructor

• new ExpressionWatch(): ExpressionWatch

  Returns ExpressionWatch

Static$gtype

evaluate

• evaluate(value: any): boolean

  Evaluates the watched expression and on success stores the result in value.

  This is equivalent to calling Gtk.Expression.evaluate with the expression and this pointer originally used to create watch.

  Parameters

  • value: any

    an empty GObject.Value to be set

  Returns boolean

  TRUE if the expression could be evaluated and value was set

ref

• ref(): ExpressionWatch

  Acquires a reference on the given Gtk.ExpressionWatch.

  Returns ExpressionWatch

  the Gtk.ExpressionWatch with an additional reference

unref

• unref(): void

  Releases a reference on the given Gtk.ExpressionWatch.

  If the reference was the last, the resources associated to self are freed.

  Returns void

unwatch

• unwatch(): void

  Stops watching an expression.

  See Gtk.Expression.watch for how the watch was established.

  Returns void