(VB.NET) IMAP Get List of Flags

When a mailbox is selected, the server response includes a list of flags:

The FLAGS response occurs as a result of a SELECT or EXAMINE command. The flag parenthesized list identifies the flags (at a minimum, the system-defined flags) that are applicable for this mailbox. Flags other than the system flags can also exist, depending on server implementation.

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Dim imap As New Chilkat.Imap

' This example assumes Chilkat Imap to have been previously unlocked.
' See Unlock Imap for sample code.

' Connect to an IMAP server.
' Use TLS
imap.Ssl = True
imap.Port = 993
Dim success As Boolean = imap.Connect("MY-IMAP-DOMAIN")
If (success <> True) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Login
success = imap.Login("MY-IMAP-LOGIN","MY-IMAP-PASSWORD")
If (success <> True) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Select an IMAP mailbox
success = imap.SelectMailbox("INBOX")
If (success <> True) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' The LastResponse property contains the full response of the last command.
Dim selectResponse As String = imap.LastResponse
Debug.WriteLine(selectResponse)

' For example, on GMail, the SELECT response looks like this:

' 	* FLAGS (\Answered \Flagged \Draft \Deleted \Seen $Forwarded $NotPhishing $Phishing $label1 $label2 $label3 $label4 $label5 Junk NonJunk)
' 	* OK [PERMANENTFLAGS (\Answered \Flagged \Draft \Deleted \Seen $Forwarded $NotPhishing $Phishing $label1 $label2 $label3 $label4 $label5 Junk NonJunk \*)] Flags permitted.
' 	* OK [UIDVALIDITY 3] UIDs valid.
' 	* 46 EXISTS
' 	* 0 RECENT
' 	* OK [UIDNEXT 4147] Predicted next UID.
' 	* OK [HIGHESTMODSEQ 402971]
' 	aaac OK [READ-WRITE] INBOX selected. (Success)

' The goal of this example is to capture the list of FLAGS.
' All IMAP servers will respond with the list of flags in a SPACE separated list enclosed in parentheses.

Dim sbResponse As New Chilkat.StringBuilder
sbResponse.Append(selectResponse)

' Get just the list of flags:
Dim sbFlagList As New Chilkat.StringBuilder
sbFlagList.Append(sbResponse.GetAfterBetween("* FLAGS","(",")"))
Debug.WriteLine(sbFlagList.GetAsString())

' sbFlagList contains this:  
' 
'     \Answered \Flagged \Draft \Deleted \Seen $Forwarded $NotPhishing $Phishing $label1 $label2 $label3 $label4 $label5 Junk NonJunk
' 

' Make sure no more than one SPACE char in a row exists.
sbFlagList.TrimInsideSpaces()
' Modify sbFlagList to one flag per line
Dim numReplaced As Integer = sbFlagList.Replace(" ",vbCrLf)

' Load a StringTable with the flag names.
Dim flagsTable As New Chilkat.StringTable
flagsTable.AppendFromSb(sbFlagList)

' Iterate over the individual flag names:
Dim i As Integer = 0
While i < flagsTable.Count
    Debug.WriteLine(i & ": " & flagsTable.StringAt(i))
    i = i + 1
End While

' The output is:
' 
' 	0: \Answered
' 	1: \Flagged
' 	2: \Draft
' 	3: \Deleted
' 	4: \Seen
' 	5: $Forwarded
' 	6: $NotPhishing
' 	7: $Phishing
' 	8: $label1
' 	9: $label2
' 	10: $label3
' 	11: $label4
' 	12: $label5
' 	13: Junk
' 	14: NonJunk
'