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Alphabetical listing for C

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csa_unregister_callback(3)
CDE
NAME
  csa_unregister_callback - unregister the specified callback functions

SYNOPSIS
  #include <xcsa.h>
  CSA_return_code csa_unregister_callback(CSA_session_handle session,
					  CSA_options reason,
					  CSA_callback callback,
					  CSA_buffer client_data,
					  CSA_extension

  *unregister_callback_extensions);

DESCRIPTION
  The csa_unregister_callback function removes the specified callback
  procedure to the specified callback list. Both the procedure and the client
  data must match for this function to remove the procedure.  Specifying a
  value of NULL for both callback and client data will cause all callbacks on
  the specified callback list(s) to be removed.

  Session (Session Handle)

  Opaque session handle that represents a session with the calendaring
  service.

  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 options. Unspecified options should always be passed as 0.
  Undocumented options are reserved. Each option corresponds to a callback
  list. 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.

  Callback (Callback)

  Specifies the client procedure that should be removed from the specified
  callback list(s).

  Client Data (Opaque Data)

  A pointer to an application specific data structure that was specified when
  the callback procedure was registered. This must match for the function to
  succeed. This constraint allows the application to register the same
  function on more than one callback list with different client_data. The
  instances of the callback function on the different callback lists will be
  treated independently by the calendar service.

  Unregister Callback 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
  Unregister Callback 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_unregister_callback function returns the following error values:

  [CSA_E_CALLBACK_NOT_REGISTERED]
      The specified callback function was not registered.

  [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 option value in the options 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 option requested is not supported.

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

SEE ALSO
  csa/csa.h(5), csa_add_calendar(3), csa_add_entry(3), csa_call_callbacks(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_update_calendar_attributes(3),
  csa_update_entry_attributes(3)

Index for Section 3

Alphabetical listing for C

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