MP_DeregisterForObjectVisibilityChanges

- deregister a client function

Synopsis

cc [ flag… ] file… -lMPAPI [ library… ]
#include <mpapi.h>

MP_STATUS MP_DeregisterForObjectVisibilityChanges(
     MP_OBJECT_VISIBILITY_FN pClientFn, MP_OBJECT_TYPE objectType,
     MP_OID pluginOid);

Parameters

pClientFn

A pointer to an object ID that has type MP_OBJECT_VISIBILITY_FN function defined by the client that was previously registered using the MP_RegisterForObjectVisibilityChanges(3MPAPI) API. With a successful return this function will no longer be called to inform the client of object visibility changes.

objectType

The type of object the client wishes to deregister for visibility change callbacks.

pluginOid

If this is a valid plugin object ID, then registration will be removed from that plugin. If this is zero, then registration is removed for all plugins.

Description

The MP_DeregisterForObjectVisibilityChanges() function deregistesr a client function to be called whenever a high level object appears or disappears.

The function specified by pClientFn takes a single parameter of type MP_OBJECT_VISIBILITY_FN.

The function specified by pClientFn will no longer be called whenever high level objects appear or disappear.

Return Values

MP_STATUS_INVALID_OBJECT_TYPE

The pluginOid parameter does not specify any valid object type. This is most likely to happen if an uninitialized object ID is passed to the API.

MP_STATUS_INVALID_PARAMETER

The pluginOid parameter is not zero or has a type subfield other than MP_OBJECT_TYPE_PLUGIN.

MP_STATUS_OBJECT_NOT_FOUND

The pluginOid owner ID or object sequence number is invalid.

MP_STATUS_UNKNOWN_FN

The pluginOid parameter is not zero or has a type subfield other than MP_OBJECT_TYPE_PLUGIN.

MP_STATUS_SUCCESS

The pClientFn parameter is deregistered successfully.

MP_STATUS_FAILED

The pClientFn parameter deregistration is not possible at this time.

Attributes

See attributes(5) for descriptions of the following attributes:

See Also

libMPAPI(3LIB), MP_RegisterForObjectVisibilityChanges(3MPAPI), attributes(5)

Multipath Management API Version 1.0