Settings.WritableChangedCallback (java-gi API)

All Superinterfaces:: FunctionPointer

Enclosing class:: Settings

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 Settings.WritableChangedCallback extends FunctionPointer

Functional interface declaration of the WritableChangedCallback callback.

See Also:

Method Summary

Modifier and Type

Method

Description

void

run(String key)

The "writable-changed" signal is emitted when the writability of a key has potentially changed.

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 sourceSettings, MemorySegment key)

The upcall method is called from native code.

Method Details
- run
  
  void run(String key)
  
  The "writable-changed" signal is emitted when the writability of a key has potentially changed. You should call g_settings_is_writable() in order to determine the new status.
  This signal supports detailed connections. You can connect to the detailed signal "writable-changed::x" in order to only receive callbacks when the writability of "x" changes.
- upcall
  
  default void upcall(MemorySegment sourceSettings, MemorySegment key)
  
  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