Alacatia Labs » CalendarKit Documentation

```
Initialize()
```
- Performs any required initialization. You must call this function before using any other of the ALCalendarKit classes or functions.

```
systemStore as ALCalendarStore
```
- The operating system’s calendar store, or nil if the operating system doesn’t have any built in support for calendars.

```
AddObserver(observer as ALCalendarObserver, observeLocalChanges as boolean = true)
```
- Adds an object to the list of observers for calendar (or event) change notifications.
  The behavior of adding an object more than once is undefined.
```
Calendars() As ALCalendar()
```
- Returns all of this store’s calendars.
```
CalendarWithUID(uid as string) As ALCalendar
```
- Gets a calendar by it’s unique identifier. Returns nil if there is no calendar with that ID.
```
CreateCalendar() As ALCalendar
```
- Creates a new calendar in this store.
```
Events(startDate as Date, endDate as Date) As ALCalendarEvent()
```
- Returns all of the events in all the calendars that occur in a certain time range.
  Note that only spans less than four years are supported. If you specify a range of more than four years,
  your results WILL only span four years.
```
EventWithUID(uid as string, occurrence as Date = nil) As ALCalendarEvent
```
- Gets an event by it’s unique identifier. Returns nil if there is no event with that ID.
  Occurrence should only be passed if the event is recurring.
```
RemoveObserver(observer as ALCalendarObserver)
```
- Removes an object to the list of observers for calendar (or event) change notifications.

```
CreateEvent() as ALCalendarEvent
```
- Creates a new event in this calendar.
```
CreateTask() As ALCalendarTask
```
- Creates a new task in this calendar.
```
Delete()
```
- Deletes this calendar and all of its items.
```
Events(startDate as Date, endDate as Date) As ALCalendarEvent()
```
- Returns all of the events in the calendar that occur in a certain time range.
  Note that only spans less than four years are supported. If you specify a range of more than four years,
  your results WILL be truncated to the four years.
```
Save()
```
- Saves all changes made to this Calendar.
```
Tasks() As ALCalendarTask()
```
- Returns all tasks on this calendar.
```
Update()
```
- Updates this calendar to the version in the store. If there is no version in the store, the behavior is undefined.
  Note that this has the side effect of reverting any changes made to this calendar.

```
isEditable as boolean
```
- Determines if this calendar is editable. The behavior when editing a read-only calendar is undefined.
```
store as ALCalendarStore
```
- The store that this calendar belongs to.
```
title as string
```
- The calendar’s name.
```
uid as string
```
- A unique identifier for this calendar. Note that this is only unique per calendar store.

```
Delete()
```
- Deletes this calendar item.
```
Save()
```
- Saves all changes to this item.
```
Update()
```
- Updates this item to the version in the store.
  Note that this has the side effect of reverting any changes made to this item.

```
calendar As ALCalendar
```
- The calendar this item belongs to. Note that assigning a calendar from one store to another is currently unsupported.
```
modificationDate As Date
```
- The date this item was last modified.
```
notes As string
```
- Any user-defined notes this item may have.
```
store As ALCalendarStore
```
- The calendr store that this item belongs to.
```
title As string
```
- The title of this item.
```
uid As string
```
- The unique identifier of this item. Note that this is unique only per calendar store.
```
url As string
```
- The url related to this item.

```
endDate As Date
```
- The day that this event ends.
```
isAllDay As boolean
```
- Does this event last all day?
```
occurrence As Date
```
- The specific occurrence of this event. This is used for recurring events.
```
startDate As Date
```
- The day this event starts on.

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