class: ObjectExpression

[12:7] extends: object

A GObject value in a GtkExpression.

Members

• handleObj
• lib
• retainedCallbacks
• signalHandlerNames
• signalSetterHandlers

Methods

• ObjectExpression (object = null)

  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 [ctor@Gtk.ConstantExpression.new].

  • @p object is object to watch.

• toNativeHandle (Source)

  Normalizes a constructor argument into a raw pointer carrier. Accepts a raw NativeHandle, a raw NativeBuffer returned from fn.call(...), another generated wrapper exposing handle(), or null. Returns null when the argument carries no pointer.

  • @p Source is the raw handle, raw buffer, wrapper, or null.
  • @r A raw pointer carrier or null when no pointer is present.

• getLib ()

  Returns the opened native library for this generated wrapper.

  • @r The opened native library.

• handle ()

  Returns the wrapped NativeHandle.

  • @r The wrapped NativeHandle.

• isNull ()

  Returns true when the wrapped handle is null.

  • @r A bool.

• describe ()

  Returns a small string for debugging generated wrappers.

  • @r A string.

• asExpression ()

  Wraps this handle as Expression.

  • @r A Expression object.

• get_object ()

  Gets the object that the expression evaluates to.