Mailboxes PowerBuilder Reference Documentation
Mailboxes
Current Version: 11.6.0
Chilkat.Mailboxes
Receive the read-only list of IMAP mailboxes populated by
Use the mailbox count and index-based methods to retrieve each mailbox
name in the returned collection.
Inspect IMAP flags associated with each mailbox, including standard and
server-specific attributes.
Determine whether a mailbox can be selected and opened for message
access.
Check whether a mailbox has child mailboxes or whether children may be
created beneath it.
Detect whether a mailbox is marked or unmarked according to the
attributes returned by the IMAP server.
For an extended overview, see
Mailboxes Class Overview.
Inspect IMAP mailbox names and attributes returned by Chilkat.Imap.
Chilkat.Mailboxes is a read-only result collection populated by
Chilkat.Imap.MbxList. Applications inspect the returned mailbox
names and attributes but do not directly add, remove, or modify entries. The
class provides indexed access to mailbox flags, selectable status, marked
status, whether child mailboxes exist, and whether child mailboxes may be
created.
Mailbox collection
Chilkat.Imap.MbxList.
Indexed mailbox access
Mailbox flags
Selectable status
Hierarchy information
Marked status
Chilkat.Imap.MbxList to populate a
Mailboxes object, loop from 0 to
Count - 1, retrieve each mailbox name, and inspect its flags or
selectable status. Mailbox names are exposed as normal Unicode text; Chilkat
automatically handles modified UTF-7 or IMAP UTF-8 at the protocol level.
Object Creation
oleobject loo_Mailboxes
integer li_rc
loo_Mailboxes = create oleobject
li_rc = loo_Mailboxes.ConnectToNewObject("Chilkat.Mailboxes")
if li_rc < 0 then
destroy loo_Mailboxes
MessageBox("Error","Connecting to COM object failed")
return
end if
// ... use loo_Mailboxes ...
destroy loo_MailboxesPowerBuilder uses the Chilkat ActiveX through an oleobject: declare the variable, create it, connect it to the Chilkat class with ConnectToNewObject, and destroy it when finished. A negative return code from ConnectToNewObject means the ActiveX is not registered, or the registered ActiveX does not match the bitness (32-bit or 64-bit) of the PowerBuilder target.
Objects returned by methods (such as an HttpResponse or JsonObject) are also oleobject variables and must likewise be destroyed. A method that fails to return an object returns null; test with IsNull(). In the signatures on this page, the Chilkat class name identifies which object is expected or returned; the PowerBuilder variable type is always oleobject.
To bind to a specific major version of Chilkat, append the major version number to the ProgID, such as ConnectToNewObject("Chilkat.Mailboxes.11") for Chilkat v11.*.*.
Members typed blob exchange binary data as a Variant byte array. The PowerBuilder examples instead use the BinData-based alternatives (methods ending in Bd), which keep binary data inside Chilkat objects.
Properties
Count
Returns the number of mailboxes in this collection. An empty collection has a count of 0.
Mailboxes is a read-only result container populated by Imap.MbxList. Applications inspect the returned entries but do not directly add, remove, or modify mailboxes in this object.
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.
LastBinaryResult
This property is mainly used in SQL Server stored procedures to retrieve binary data from the last method call that returned binary data. It is only accessible if Chilkat.Global.KeepBinaryResult is set to 1. This feature allows for the retrieval of large varbinary results in an SQL Server environment, which has restrictions on returning large data via method calls, though temp tables can handle binary properties.
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.
topLastErrorText
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.
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.
topLastMethodSuccess
Indicates the success or failure of the most recent method call: 1 means success, 0 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.
LastStringResult
In SQL Server stored procedures, this property holds the string return value of the most recent method call that returns a string. It is accessible only when Chilkat.Global.KeepStringResult is set to TRUE. SQL Server has limitations on string lengths returned from methods and properties, but temp tables can be used to access large strings.
LastStringResultLen
The length, in characters, of the string contained in the LastStringResult property.
topVerboseLogging
If set to 1, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is 0. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.
Version
Methods
GetFlags
Returns a comma-separated list of flags for the mailbox at the zero-based index specified by index.
For example:
\HasNoChildren,\Important
To inspect the flags individually, use GetNumFlags and GetNthFlag.
Returns null on failure
GetMailboxIndex
Returns the zero-based index of the mailbox whose name matches mbxName.
Pass mbxName as a normal Unicode mailbox name. Chilkat automatically handles the protocol-level modified UTF-7 or IMAP UTF-8 representation; the application should not encode the mailbox name manually.
The returned index can be used with methods such as GetName, GetFlags, and IsSelectable.
GetName
Returns the name of the mailbox at the zero-based index specified by index.
The name is returned as normal Unicode text. Chilkat automatically decodes modified UTF-7 or IMAP UTF-8 mailbox names received from the server and automatically performs the corresponding encoding when the name is passed to an Imap method.
The returned name can therefore be passed directly to methods that select, examine, create, rename, delete, copy to, or otherwise operate on a mailbox. Do not manually encode or decode the mailbox name.
Returns null on failure
GetNthFlag
Returns one flag from a mailbox in the collection.
indexis the zero-based mailbox index.flagIndexis the zero-based flag index within that mailbox.
Call GetNumFlags to determine the number of flags available for the mailbox.
Returns null on failure
GetNumFlags
Returns the number of flags associated with the mailbox at the zero-based index specified by index.
Returns -1 if index is outside the valid mailbox-index range. Use GetNthFlag to retrieve the individual flags.
HasFlag
Returns 1 if the mailbox at the zero-based index specified by index contains the flag named by flagName.
Flag-name comparison is case-insensitive. Include the leading backslash when checking an IMAP system flag or mailbox attribute, for example \Marked, \Noselect, or \HasChildren.
HasInferiors
Returns 1 if the mailbox at the zero-based index specified by index either has child mailboxes or permits child mailboxes to be created beneath it.
\HasNoChildren means that no child mailboxes currently exist. It does not mean that children cannot be created. The IMAP \Noinferiors attribute means that child mailboxes cannot be created.
IsMarked
Returns 1 if the mailbox at the zero-based index specified by index has the IMAP \Marked attribute.
\Marked is a server-provided hint that the mailbox may contain messages added since it was last selected. It is advisory information returned by the mailbox-listing operation.
IsSelectable
Returns 1 if the mailbox at the zero-based index specified by index can be selected or examined for message access.
A mailbox having the IMAP \Noselect attribute is not selectable, even though it may appear in the mailbox hierarchy and may contain selectable child mailboxes.
LoadTaskResult
Loads this object from a completed asynchronous task whose result is a Mailboxes collection.
task must reference a completed Task returned by the asynchronous form of an operation that produces mailbox-listing results.
Returns 1 for success, 0 for failure.
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