Package org.gnome.gtk

Interface FontDialogButton.ActivateCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

FontDialogButton

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 FontDialogButton.ActivateCallback
extends FunctionPointer

Functional interface declaration of the ActivateCallback callback.

See Also:

• run()

Method Summary

Modifier and Type	Method	Description
void	run()	Emitted when the font dialog button is activated.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment) method.
default void	upcall(MemorySegment sourceFontDialogButton)	The upcall method is called from native code.

Method Details

run

void run()

Emitted when the font dialog button is activated.

The ::activate signal on GtkFontDialogButton is an action signal and emitting it causes the button to pop up its dialog.

upcall

default void upcall(MemorySegment sourceFontDialogButton)

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