Package org.gnome.gtk

Interface EventControllerKey.KeyPressedCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

EventControllerKey

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 EventControllerKey.KeyPressedCallback
extends FunctionPointer

Functional interface declaration of the KeyPressedCallback callback.

See Also:

• run(int, int, java.util.Set<org.gnome.gdk.ModifierType>)

Method Summary

Modifier and Type	Method	Description
boolean	run(int keyval, int keycode, Set<ModifierType> state)	Emitted whenever a key is pressed.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, int, int, int) method.
default int	upcall(MemorySegment sourceEventControllerKey, int keyval, int keycode, int state)	The upcall method is called from native code.

Method Details

run

boolean run(int keyval,
 int keycode,
 Set<ModifierType> state)

Emitted whenever a key is pressed.

upcall

default int upcall(MemorySegment sourceEventControllerKey,
 int keyval,
 int keycode,
 int state)

The upcall method is called from native code. The parameters are marshaled and run(int, int, java.util.Set<org.gnome.gdk.ModifierType>) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

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

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the function pointer will be allocated in this arena

Returns:

the native function pointer