Interface Paintable.InvalidateContentsCallback

All Superinterfaces:
FunctionPointer
Enclosing interface:
Paintable
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 Paintable.InvalidateContentsCallback extends FunctionPointer

Functional interface declaration of the InvalidateContentsCallback callback.

See Also:

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    run()
    Emitted when the contents of the paintable change.
    default MemorySegment
    toCallback(Arena arena)
    Creates a native function pointer to the upcall(MemorySegment) method.
    default void
    upcall(MemorySegment sourcePaintable)
    The upcall method is called from native code.

  • Method Details

    • run

      void run()

      Emitted when the contents of the paintable change.

      Examples for such an event would be videos changing to the next frame or the icon theme for an icon changing.

    • upcall

      default void upcall(MemorySegment sourcePaintable)
      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