Package org.gnome.gtk

Interface LevelBar.OffsetChangedCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

LevelBar

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 LevelBar.OffsetChangedCallback
extends FunctionPointer

Functional interface declaration of the OffsetChangedCallback callback.

See Also:

• run(java.lang.String)

Method Summary

Modifier and Type	Method	Description
void	run(String name)	Emitted when an offset specified on the bar changes value.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment) method.
default void	upcall(MemorySegment sourceLevelBar, MemorySegment name)	The upcall method is called from native code.

Method Details

run

void run(String name)

Emitted when an offset specified on the bar changes value.

This typically is the result of a LevelBar.addOffsetValue(java.lang.String, double) call.

The signal supports detailed connections; you can connect to the detailed signal "changed::x" in order to only receive callbacks when the value of offset "x" changes.

upcall

default void upcall(MemorySegment sourceLevelBar,
 MemorySegment name)

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

toCallback

default MemorySegment toCallback(Arena arena)

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

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the function pointer will be allocated in this arena

Returns:

the native function pointer