Package org.gnome.gtk

Interface Widget.MnemonicActivateCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

Widget

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 Widget.MnemonicActivateCallback
extends FunctionPointer

Functional interface declaration of the MnemonicActivateCallback callback.

See Also:

• run(boolean)

Method Summary

Modifier and Type	Method	Description
boolean	run(boolean groupCycling)	Emitted when a widget is activated via a mnemonic.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, int) method.
default int	upcall(MemorySegment sourceWidget, int groupCycling)	The upcall method is called from native code.

Method Details

run

boolean run(boolean groupCycling)

Emitted when a widget is activated via a mnemonic.

The default handler for this signal activates widget if groupCycling is false, or just makes widget grab focus if groupCycling is true.

upcall

default int upcall(MemorySegment sourceWidget,
 int groupCycling)

The upcall method is called from native code. The parameters are marshaled and run(boolean) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

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

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the function pointer will be allocated in this arena

Returns:

the native function pointer