csa_call_callbacks(3)

     NAME
          csa_call_callbacks - force the invocation of the callback
          functions associated with the specified callback list(s)

     SYNOPSIS
          #include <csa.h>

          CSA_return_code csa_call_callbacks(CSA_session_handle session,
                                             CSA_flags reason,
                                             CSA_extension *call_callbacks_extensions);

     DESCRIPTION
          The csa_call_callbacks() function causes the service to call
          the registered callback functions associationed with the
          specified callback list(s).  The service will process each
          specified callback list and call the registered callback
          functions if there have been changes that would trigger the
          callbacks of that type.  The order in which callbacks are
          invoked is implementation specific.

        Session (Session Handle)
          Opaque session handle that represents a session with the
          calendaring service.

          If a valid session handle is specified, the callback
          functions registered with that session are invoked.  Session
          handles are created by a logon function call and invalidated
          with a logoff function call.  If the session handle is
          invalid, then the error CSA_E_INVALID_SESSION_HANDLE is
          returned.

        Reason (Flags)
          A bitmask of flags.  Unspecified flags should always be
          passed as 0.  Undocumented flags are reserved.  Each flag
          corresponds to a callback activity.  Flag settings include:

             CSA_CB_CALENDAR_LOGON
                   If set, the new callback will be invoked when a the
                   calendar is accessed by a user.

             CSA_CB_CALENDAR_DELETED
                   If set, the new callback will be invoked when a
                   user requests that the calendar be deleted.

             CSA_CB_CALENDAR_ATTRIBUTE_UPDATED
                   If set, the new callback will be invoked whenever a
                   calendar attribute is updated.

             CSA_CB_ENTRY_ADDED
                   If set, the new callback will be invoked whenever
                   an entry is added to the calendar.

             CSA_CB_ENTRY_DELETED
                   If set, the new callback will be invoked whenever
                   an entry is deleted from the calendar.

             CSA_CB_ENTRY_UPDATED
                   If set, the new callback will be invoked whenever
                   an entry is updated on the calendar.  It is
                   implementation specific if the callback function is
                   invoked before or after the specified update type
                   occurs.

        Call Callbacks Extensions (Extension)
          A pointer to an array of CSA_extension structures for this
          function.  The array may contain both input extensions for
          providing additional information to the function and output
          extensions for receiving information from the function.  A
          value of NULL indicates that the caller is not using any
          extensions.  See the extensions structure for more
          information.

     RETURN VALUE
        Call Callbacks Extensions (Extension)
          If output extensions were passed to the function in the
          extensions list, the results from the service will be
          available in the extension.  See the extensions structure
          for more information.  Whether the function succeeded or
          not, and, if not, why.  It may be success or one of the
          values listed under ERRORS below.

     ERRORS
          The csa_call_callbacks() function returns the following
          error values:

             CSA_E_FAILURE
                   There was a general failure that does not fit the
                   description of any other error code.

             CSA_E_INSUFFICIENT_MEMORY
                   Insufficient memory was available to complete the
                   requested operation.

             CSA_E_INVALID_FLAG
                   A flag value in the flags argument was invalid.

             CSA_E_INVALID_FUNCTION_EXT
                   The function extension requested is invalid.

             CSA_E_INVALID_PARAMETER
                   A function parameter was invalid.

             CSA_E_INVALID_SESSION_HANDLE
                   The specified Session Handle is invalid or no
                   longer valid (e.g., after logging off).

             CSA_E_NO_AUTHORITY
                   The user has insufficient authority for this
                   function.

             CSA_E_NOT_SUPPORTED
                   The operation requested is not supported by this
                   implementation.

             CSA_E_SERVICE_UNAVAILABLE
                   The requested calendar service is unavailable.

             CSA_E_UNSUPPORTED_FLAG
                   The flag requested is not supported.

             CSA_E_UNSUPPORTED_FUNCTION_EXT
                   The specified function extension is not supported
                   or CSA_EXT_REQUIRED is set.

     SEE ALSO
          csacsa(5), csa_add_calendar(3), csa_add_entry(3),
          csa_delete_calendar(3), csa_delete_entry(3), csa_free(3),
          csa_free_time_search(3), csa_list_calendar_attributes(3),
          csa_list_calendars(3), csa_list_entries(3),
          csa_list_entry_attributes(3), csa_list_entry_sequence(3),
          csa_logoff(3), csa_logon(3), csa_look_up(3),
          csa_query_configuration(3), csa_read_calendar_attributes(3),
          csa_read_entry_attributes(3), csa_read_next_reminder(3),
          csa_register_callback(3), csa_unregister_callback(3),
          csa_update_calendar_attributes(3),
          csa_update_entry_attributes(3).