Interface Application.QueryEndCallback

All Superinterfaces:
FunctionPointer
Enclosing class:
Application
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 Application.QueryEndCallback extends FunctionPointer

Functional interface declaration of the QueryEndCallback callback.

See Also:

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    run()
    Emitted when the session manager is about to end the session.
    default MemorySegment
    toCallback(Arena arena)
    Creates a native function pointer to the upcall(MemorySegment) method.
    default void
    upcall(MemorySegment sourceApplication)
    The upcall method is called from native code.

  • Method Details

    • run

      void run()

      Emitted when the session manager is about to end the session.

      Applications can connect to this signal and call Application.inhibit(Window, Set, String) with Gtk.ApplicationInhibitFlags.logout to delay the end of the session until state has been saved.

    • upcall

      default void upcall(MemorySegment sourceApplication)
      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