Package org.lwjgl.system

Class Callback

java.lang.Object

org.lwjgl.system.Pointer.Default

org.lwjgl.system.Callback

All Implemented Interfaces:

java.lang.AutoCloseable, NativeResource, Pointer

Direct Known Subclasses:

ChunkAlloc, ChunkCommit, ChunkDalloc, ChunkDecommit, ChunkMerge, ChunkPurge, ChunkSplit, CLContextCallback, CLEventCallback, CLMemObjectDestructorCallback, CLNativeKernel, CLProgramCallback, CLReportLiveObjectsAlteraCallback, CLSVMFreeCallback, EGLDebugMessageKHRCallback, EGLGetBlobFuncANDROID, EGLSetBlobFuncANDROID, EnumerationMutationHandler, GLDebugMessageAMDCallback, GLDebugMessageARBCallback, GLDebugMessageCallback, GLDebugMessageCallback, GLDebugMessageKHRCallback, GLFWCharCallback, GLFWCharModsCallback, GLFWCursorEnterCallback, GLFWCursorPosCallback, GLFWDropCallback, GLFWErrorCallback, GLFWFramebufferSizeCallback, GLFWJoystickCallback, GLFWKeyCallback, GLFWMonitorCallback, GLFWMouseButtonCallback, GLFWScrollCallback, GLFWWindowCloseCallback, GLFWWindowFocusCallback, GLFWWindowIconifyCallback, GLFWWindowPosCallback, GLFWWindowRefreshCallback, GLFWWindowSizeCallback, MallocMessageCallback, OVRLogCallback, STBIEOFCallback, STBIReadCallback, STBISkipCallback, STBIWriteCallback, VkAllocationFunction, VkDebugReportCallbackEXT, VkFreeFunction, VkInternalAllocationNotification, VkInternalFreeNotification, VkReallocationFunction, WindowProc

public abstract class Callback
extends Pointer.Default
implements NativeResource

Base class for dynamically created native functions that call into Java code.

Callback instances use native resources and must be explicitly freed when no longer used by calling the Callback.free() method.

Nested Class Summary

Nested classes/interfaces inherited from interface org.lwjgl.system.Pointer

Pointer.Default

Field Summary

Fields inherited from interface org.lwjgl.system.Pointer

POINTER_SHIFT, POINTER_SIZE

Method Summary

Modifier and Type	Method and Description
void	free() Frees any native resources held by this object.
static void	free(long functionPointer) Frees any resources held by the specified function pointer.
static <T extends CallbackI> T	get(long functionPointer) Converts the specified function pointer to the CallbackI instance associated with it.

Methods inherited from class org.lwjgl.system.Pointer.Default

address, equals, hashCode, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.lwjgl.system.NativeResource

close

Method Detail

free

public void free()

Description copied from interface: NativeResource

Frees any native resources held by this object.

Specified by:

free in interface NativeResource

get

public static <T extends CallbackI> T get(long functionPointer)

Converts the specified function pointer to the CallbackI instance associated with it.

Type Parameters:

T - the CallbackI instance type

Parameters:

functionPointer - a function pointer

Returns:

the CallbackI instance, or null if the function pointer is NULL.

free

public static void free(long functionPointer)

Frees any resources held by the specified function pointer.

Parameters:

functionPointer - the function pointer