Package org.gnome.gtk

Interface TreeSelection.ChangedCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

TreeSelection

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 TreeSelection.ChangedCallback
extends FunctionPointer

Functional interface declaration of the ChangedCallback callback.

See Also:

• run()

Method Summary

Modifier and Type	Method	Description
void	run()	Emitted whenever the selection has (possibly) changed.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment) method.
default void	upcall(MemorySegment sourceTreeSelection)	The upcall method is called from native code.

Method Details

run

void run()

Emitted whenever the selection has (possibly) changed. Please note that this signal is mostly a hint. It may only be emitted once when a range of rows are selected, and it may occasionally be emitted when nothing has happened.

upcall

default void upcall(MemorySegment sourceTreeSelection)

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(java.lang.foreign.MemorySegment) method.

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the function pointer will be allocated in this arena

Returns:

the native function pointer