org.rococoa.cocoa.carboncore
Interface CarbonCoreLibrary.AVLCompareItemsProcPtr

All Superinterfaces:

Callback

Enclosing interface:

CarbonCoreLibrary

public static interface CarbonCoreLibrary.AVLCompareItemsProcPtr
extends Callback

AVLCompareItemsProcPtr

Summary:
A callback function which compares two data items and returns
their ordering.

Discussion:
Every tree must have a function which compares the data for two
items and returns < 0, 0, or >0 for the items - < 0 if the first
item is 'before' the second item according to some criteria, == 0
if the two items are identical according to the criteria, or > 0
if the first item is 'after' the second item according to the
criteria. The comparison function is also passed the node type,
but most of the time this can be ignored.

Parameters:

tree:
The tree which contains the items being compared

i1:
A pointer to the first item

i2:
A pointer to the second item

nd_typ:
The type of the nodes being compared. This is not terribly
useful most of the time.

Result:
A value < 0 if i1 is 'before' i2, > 0 if i1 is 'after' i2, or ==
0 if i1 is equal to i2.
native declaration : /System/Library/Frameworks/CoreServices.framework/Versions/Current/Frameworks/CarbonCore.framework/Headers/AVLTree.h

Nested Class Summary

Nested classes/interfaces inherited from interface com.sun.jna.Callback

Callback.UncaughtExceptionHandler

Field Summary

Fields inherited from interface com.sun.jna.Callback

FORBIDDEN_NAMES, METHOD_NAME

Method Summary

int	invoke(AVLTreeStruct tree, Pointer i1, Pointer i2, short nd_typ)

Method Detail

invoke

int invoke(AVLTreeStruct tree,
           Pointer i1,
           Pointer i2,
           short nd_typ)