Package org.gnome.gtk

Interface GestureClick.PressedCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

GestureClick

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 GestureClick.PressedCallback
extends FunctionPointer

Functional interface declaration of the PressedCallback callback.

See Also:

• run(int, double, double)

Method Summary

Modifier and Type	Method	Description
void	run(int nPress, double x, double y)	Emitted whenever a button or touch press happens.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, int, double, double) method.
default void	upcall(MemorySegment sourceGestureClick, int nPress, double x, double y)	The upcall method is called from native code.

Method Details

run

void run(int nPress,
 double x,
 double y)

Emitted whenever a button or touch press happens.

upcall

default void upcall(MemorySegment sourceGestureClick,
 int nPress,
 double x,
 double y)

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

toCallback

default MemorySegment toCallback(Arena arena)

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

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the function pointer will be allocated in this arena

Returns:

the native function pointer