Interface CheckButton.ActivateCallback

All Superinterfaces:
FunctionPointer
Enclosing class:
CheckButton
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public static interface CheckButton.ActivateCallback extends FunctionPointer

Functional interface declaration of the ActivateCallback callback.

See Also:

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    run()
    Emitted to when the check button is activated.
    default MemorySegment
    toCallback(Arena arena)
    Creates a native function pointer to the upcall(MemorySegment) method.
    default void
    upcall(MemorySegment sourceCheckButton)
    The upcall method is called from native code.

  • Method Details

    • run

      void run()

      Emitted to when the check button is activated.

      The ::activate signal on GtkCheckButton is an action signal and emitting it causes the button to animate press then release.

      Applications should never connect to this signal, but use the Gtk.CheckButton::toggled signal.

      The default bindings for this signal are all forms of the ␣ and Enter keys.

      Since:
      4.2

    • upcall

      default void upcall(MemorySegment sourceCheckButton)
      The upcall method is called from native code. The parameters are marshaled and run() is executed.

    • toCallback

      default MemorySegment toCallback(Arena arena)
      Creates a native function pointer to the upcall(MemorySegment) method.
      Specified by:
      toCallback in interface FunctionPointer
      Parameters:
      arena - the arena in which the function pointer is allocated
      Returns:
      the native function pointer