Function
GObjectTypeClassCacheFunc
since: 2.0
Description
A callback function which is called when the reference count of a class drops to zero.
It may use g_type_class_ref() to prevent the class from being freed. You
should not call g_type_class_unref() from a GTypeClassCacheFunc function
to prevent infinite recursion, use g_type_class_unref_uncached() instead.
The functions have to check the class id passed in to figure
whether they actually want to cache the class of this type, since all
classes are routed through the same GTypeClassCacheFunc chain.
Available since: 2.0
Parameters
cache_data-
Type:
gpointerData that was given to the
g_type_add_class_cache_func()call.The argument can be NULL.The data is owned by the caller of the function. g_class-
Type:
GTypeClassThe
GTypeClassstructure which is unreferenced.The data is owned by the caller of the function.