Package org.gnome.gtk

Interface Assistant.PrepareCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

Assistant

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
@Deprecated
public static interface Assistant.PrepareCallback
extends FunctionPointer

Deprecated.

Functional interface declaration of the PrepareCallback callback.

See Also:

• run(org.gnome.gtk.Widget)

Method Summary

Modifier and Type	Method	Description
void	run(@Nullable Widget page)	Deprecated. This widget will be removed in GTK 5
default MemorySegment	toCallback(Arena arena)	Deprecated. Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment) method.
default void	upcall(MemorySegment sourceAssistant, MemorySegment page)	Deprecated. The upcall method is called from native code.

Method Details

run

@Deprecated
void run(@Nullable Widget page)

Deprecated.

This widget will be removed in GTK 5

Emitted when a new page is set as the assistant's current page, before making the new page visible.

A handler for this signal can do any preparations which are necessary before showing page.

upcall

default void upcall(MemorySegment sourceAssistant,
 MemorySegment page)

Deprecated.

The upcall method is called from native code. The parameters are marshaled and run(org.gnome.gtk.Widget) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

Deprecated.

Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment) method.

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the arena in which the function pointer is allocated

Returns:

the native function pointer