Creates a new default #ICalDatetimeperiod. struct icaldatetimeperiodtype datetimeperiodtype; datetimeperiodtype.time = icaltime_null_time (); datetimeperiodtype.period = icalperiodtype_null_period (); return datetimeperiodtype; Creates a new #ICalDatetimeperiod. return i_cal_datetimeperiod_new_full(i_cal_datetimeperiod_new_default()); Gets the time attribute of #ICalDatetimeperiod. g_return_val_if_fail (dtp != NULL && I_CAL_IS_DATETIMEPERIOD (dtp), NULL); return i_cal_time_new_full (((struct icaldatetimeperiodtype *)i_cal_object_get_native ((ICalObject *)dtp))->time); Sets the time attribute of #ICalDatetimeperiod. g_return_if_fail (dtp != NULL && I_CAL_IS_DATETIMEPERIOD (dtp)); g_return_if_fail (time != NULL && I_CAL_IS_TIME(time)); ((struct icaldatetimeperiodtype *)i_cal_object_get_native ((ICalObject *)dtp))->time = *(struct icaltimetype *)i_cal_object_get_native ((ICalObject *)time); Gets the period attribute of #ICalDatetimeperiod. g_return_val_if_fail (dtp != NULL && I_CAL_IS_DATETIMEPERIOD (dtp), NULL); return i_cal_period_new_full (((struct icaldatetimeperiodtype *)i_cal_object_get_native ((ICalObject *)dtp))->period); Sets the period attribute of #ICalDatetimeperiod. g_return_if_fail (dtp != NULL && I_CAL_IS_DATETIMEPERIOD (dtp)); g_return_if_fail (period != NULL && I_CAL_IS_PERIOD(period)); ((struct icaldatetimeperiodtype *)i_cal_object_get_native ((ICalObject *)dtp))->period = *(struct icalperiodtype *)i_cal_object_get_native ((ICalObject *)period);