Widget.StateFlagsChangedCallback (java-gi API)

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.StateFlagsChangedCallback extends FunctionPointer

Functional interface declaration of the StateFlagsChangedCallback callback.

See Also:

Method Summary

Modifier and Type

Method

Description

void

run(Set<StateFlags> flags)

Emitted when the widget state changes.

default MemorySegment

toCallback(Arena arena)

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

default void

upcall(MemorySegment sourceWidget, int flags)

The upcall method is called from native code.

Method Details
- run
  
  void run(Set<StateFlags> flags)
  
  Emitted when the widget state changes.
  See Widget.getStateFlags().
- upcall
  
  default void upcall(MemorySegment sourceWidget, int flags)
  
  The upcall method is called from native code. The parameters are marshaled and run(java.util.Set<org.gnome.gtk.StateFlags>) 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