EventControllerKey.ModifiersCallback (java-gi API)

All Superinterfaces:: FunctionPointer

Enclosing class:: EventControllerKey

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 EventControllerKey.ModifiersCallback extends FunctionPointer

Functional interface declaration of the ModifiersCallback callback.

See Also:

Method Summary

Modifier and Type

Method

Description

boolean

run(Set<ModifierType> state)

Emitted whenever the state of modifier keys and pointer buttons change.

default MemorySegment

toCallback(Arena arena)

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

default int

upcall(MemorySegment sourceEventControllerKey, int state)

The upcall method is called from native code.

Method Details
- run
  
  boolean run(Set<ModifierType> state)
  
  Emitted whenever the state of modifier keys and pointer buttons change.
- upcall
  
  default int upcall(MemorySegment sourceEventControllerKey, int state)
  
  The upcall method is called from native code. The parameters are marshaled and run(java.util.Set<org.gnome.gdk.ModifierType>) 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