Interface ListBoxCreateWidgetFunc

All Superinterfaces:
FunctionPointer
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface @Generated("org.javagi.JavaGI") public interface ListBoxCreateWidgetFunc extends FunctionPointer

Functional interface declaration of the ListBoxCreateWidgetFunc callback.

See Also:

  • Method Details

    • run

      Widget run(GObject item)

      Called for list boxes that are bound to a GListModel with gtk_list_box_bind_model() for each item that gets added to the model.

      If the widget returned is not a GtkListBoxRow widget, then the widget will be inserted as the child of an intermediate GtkListBoxRow.

      Parameters:
      item - the item from the model for which to create a widget for
      Returns:
      a GtkWidget that represents item

    • upcall

      default MemorySegment upcall(MemorySegment item, MemorySegment userData)
      The upcall method is called from native code. The parameters are marshaled and run(GObject) is executed.

    • toCallback

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