Package org.gnome.gtk

Interface SpinButton.ActivateCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

SpinButton

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 SpinButton.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 spin 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 sourceSpinButton)	The upcall method is called from native code.

Method Details

run

void run()

Emitted when the spin button is activated.

The keybindings for this signal are all forms of the Enter key.

If the Enter key results in the value being committed to the spin button, then activation does not occur until Enter is pressed again.

Since:

4.14

upcall

default void upcall(MemorySegment sourceSpinButton)

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 arena in which the function pointer is allocated

Returns:

the native function pointer