Mailboxes Objective-C Reference Documentation

CkoMailboxes

Current Version: 11.5.0

Requires Chilkat Bundle License

Chilkat.Mailboxes

Inspect IMAP mailbox names and attributes returned by Chilkat.Imap.

Chilkat.Mailboxes represents a collection of IMAP mailboxes returned by Chilkat.Imap. It provides indexed access to mailbox names and mailbox attributes, including mailbox flags, selectable status, marked status, whether child mailboxes exist, and whether child mailboxes may be created. It is a lightweight result object used for listing and examining the mailbox hierarchy on an IMAP server.

Mailbox collection

Hold the list of IMAP mailboxes returned by mailbox-listing operations in Chilkat.Imap.

Indexed mailbox access

Use the mailbox count and index-based methods to retrieve each mailbox name in the returned collection.

Mailbox flags

Inspect IMAP flags associated with each mailbox, including standard and server-specific attributes.

Selectable status

Determine whether a mailbox can be selected and opened for message access.

Hierarchy information

Check whether a mailbox has child mailboxes or whether children may be created beneath it.

Marked status

Detect whether a mailbox is marked or unmarked according to the attributes returned by the IMAP server.

Common pattern: Call a mailbox-listing method on Chilkat.Imap, receive a Mailboxes object, loop from 0 to Count - 1, retrieve each mailbox name, and inspect its flags or selectable status before selecting, creating, or displaying mailboxes in the application.

For an extended overview, see Mailboxes Class Overview.

Object Creation

CkoMailboxes *obj = [[CkoMailboxes alloc] init];

Properties

Count

@property (nonatomic, readonly, copy) NSNumber *Count;

The number of mailboxes in the collection.

Note: The Mailboxes class is for use with the Chilkat IMAP component.

DebugLogFilePath

@property (nonatomic, copy) NSString *DebugLogFilePath;

If set to a file path, this property logs the LastErrorText of each Chilkat method or property call to the specified file. This logging helps identify the context and history of Chilkat calls leading up to any crash or hang, aiding in debugging.

Enabling the VerboseLogging property provides more detailed information. This property is mainly used for debugging rare instances where a Chilkat method call causes a hang or crash, which should generally not happen.

Possible causes of hangs include:

A timeout property set to 0, indicating an infinite timeout.
A hang occurring within an event callback in the application code.
An internal bug in the Chilkat code causing the hang.

More Information and Examples

Example showing how to use DebugLogFilePath.

LastErrorHtml

@property (nonatomic, readonly, copy) NSString *LastErrorHtml;

Provides HTML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

LastErrorText

@property (nonatomic, readonly, copy) NSString *LastErrorText;

Provides plain text information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

More Information and Examples

Concept of LastErrorText LastErrorText Standard Information

LastErrorXml

@property (nonatomic, readonly, copy) NSString *LastErrorXml;

Provides XML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

LastMethodSuccess

@property (nonatomic) BOOL LastMethodSuccess;

Indicates the success or failure of the most recent method call: YES means success, NO means failure. This property remains unchanged by property setters or getters. This method is present to address challenges in checking for null or Nothing returns in certain programming languages. Note: This property does not apply to methods that return integer values or to boolean-returning methods where the boolean does not indicate success or failure.

VerboseLogging

@property (nonatomic) BOOL VerboseLogging;

If set to YES, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is NO. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.

Version

@property (nonatomic, readonly, copy) NSString *Version;

Version of the component/library, such as "10.1.0"

More Information and Examples

How to get the Chilkat version at runtime.

Methods

GetFlags

- (NSString *)GetFlags:(NSNumber *)index;

Returns a comma-separated list of flags for the Nth mailbox. For example, \HasNoChildren,\Important.

Returns nil on failure

GetMailboxIndex

- (NSNumber *)GetMailboxIndex:(NSString *)mbxName;

Returns the index of the mailbox having the specified name.

GetName

- (NSString *)GetName:(NSNumber *)index;

The name of the Nth mailbox in this collection. Indexing begins at 0.

Returns nil on failure

GetNthFlag

- (NSString *)GetNthFlag:(NSNumber *)index
flagIndex:(NSNumber *)flagIndex;

Returns the name of the Nth flag for the Mth mailbox. The index is the index of the mailbox. The flagIndex is the index of the flag.

Returns nil on failure

GetNumFlags

- (NSNumber *)GetNumFlags:(NSNumber *)index;

Returns the number of flags for the Nth mailbox. Returns -1 if the index is out of range.

HasFlag

- (BOOL)HasFlag:(NSNumber *)index
flagName:(NSString *)flagName;

Returns YES if the Nth mailbox has the specified flag set. The flag name is case insensitive and should begin with a backslash character, such as \Flagged. The index is the index of the Nth mailbox.

More Information and Examples

Find the "Sent" IMAP Mailbox

HasInferiors

- (BOOL)HasInferiors:(NSNumber *)index;

Returns YES if the Nth mailbox has inferiors (i.e. sub-mailboxes), or if it is possible to create child mailboxes in the future.

Note: the HasNoChildren attribute/flag should not be confused with the IMAP4 [RFC-2060] defined attribute Noinferiors which indicates that no child mailboxes exist now AND none can be created in the future.

More Information and Examples

HasInferiors always True? (Why HasInferiors is Often Misunderstood)

IsMarked

- (BOOL)IsMarked:(NSNumber *)index;

Returns YES if the Nth mailbox is marked.

IsSelectable

- (BOOL)IsSelectable:(NSNumber *)index;

Returns YES if the Nth mailbox is selectable.

LoadTaskResult

- (BOOL)LoadTaskResult:(CkoTask *)task;

Introduced in version 9.5.0.52

Loads the mailboxes object from a completed asynchronous task.

Returns YES for success, NO for failure.