Interface FrameClock.UpdateCallback

All Superinterfaces:
FunctionPointer
Enclosing class:
FrameClock
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 FrameClock.UpdateCallback extends FunctionPointer

Functional interface declaration of the UpdateCallback callback.

See Also:

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    run()
    Emitted as the first step of toolkit and application processing of the frame.
    default MemorySegment
    toCallback(Arena arena)
    Creates a native function pointer to the upcall(MemorySegment) method.
    default void
    upcall(MemorySegment sourceFrameClock)
    The upcall method is called from native code.

  • Method Details

    • run

      void run()

      Emitted as the first step of toolkit and application processing of the frame.

      Animations should be updated using FrameClock.getFrameTime(). Applications can connect directly to this signal, or use gtk_widget_add_tick_callback() as a more convenient interface.

    • upcall

      default void upcall(MemorySegment sourceFrameClock)
      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