Interface DragSource.DragEndCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

DragSource

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 DragSource.DragEndCallback
extends FunctionPointer

Functional interface declaration of the DragEndCallback callback.

See Also:

• run(Drag, boolean)

Method Summary

Modifier and Type	Method	Description
void	run(@Nullable Drag drag, boolean deleteData)	Emitted on the drag source when a drag is finished.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, MemorySegment, int) method.
default void	upcall(MemorySegment sourceDragSource, MemorySegment drag, int deleteData)	The upcall method is called from native code.

Method Details

run

void run(@Nullable Drag drag,
 boolean deleteData)

Emitted on the drag source when a drag is finished.

A typical reason to connect to this signal is to undo things done in Gtk.DragSource::prepare or Gtk.DragSource::drag-begin handlers.

upcall

default void upcall(MemorySegment sourceDragSource,
 MemorySegment drag,
 int deleteData)

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

toCallback

default MemorySegment toCallback(Arena arena)

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

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the arena in which the function pointer is allocated

Returns:

the native function pointer