PixbufDestroyNotify (java-gi API)

All Superinterfaces:: FunctionPointer

Functional Interface:: This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface @Generated("io.github.jwharm.JavaGI") public interface PixbufDestroyNotify extends FunctionPointer

Functional interface declaration of the PixbufDestroyNotify callback.

See Also:

Method Summary

Modifier and Type

Method

Description

void

run(@org.jspecify.annotations.Nullable byte @Nullable [] pixels)

A function of this type is responsible for freeing the pixel array of a pixbuf.

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 pixels, MemorySegment data)

The upcall method is called from native code.

Method Details
- run
  
  void run(@org.jspecify.annotations.Nullable byte @Nullable [] pixels)
  
  A function of this type is responsible for freeing the pixel array of a pixbuf.
  The gdk_pixbuf_new_from_data() function lets you pass in a pre-allocated pixel array so that a pixbuf can be created from it; in this case you will need to pass in a function of type GdkPixbufDestroyNotify so that the pixel data can be freed when the pixbuf is finalized.
- upcall
  
  default void upcall(MemorySegment pixels, MemorySegment data)
  
  The upcall method is called from native code. The parameters are marshaled and run(byte[]) 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 arena in which the function pointer is allocated
  
  Returns:
  
  the native function pointer