Lianja

Determine the Number of Unseen Email Messages

Demonstrates how to determine how many unseen messages exist in an email account on an IMAP server. Lianja

llSuccess = .F.

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

loImap = createobject("CkImap")

// Connect to an IMAP server.
// Use TLS
loImap.Ssl = .T.
loImap.Port = 993
llSuccess = loImap.Connect("imap.example.com")
if (llSuccess = .F.) then
    ? loImap.LastErrorText
    release loImap
    return
endif

// Login
llSuccess = loImap.Login("***","***")
if (llSuccess = .F.) then
    ? loImap.LastErrorText
    release loImap
    return
endif

// Select an IMAP mailbox
llSuccess = loImap.SelectMailbox("Inbox")
if (llSuccess = .F.) then
    ? loImap.LastErrorText
    release loImap
    return
endif

// After selecting the mailbox. the total number of emails
// is immediately available:
lnTotalNum = loImap.NumMessages
? "Num messages = " + str(lnTotalNum)

// To determine the number of unseen messages, a call
// to Search is required, which returns the set of UIDs
// of all unseen messages.

// We can choose to fetch UIDs or sequence numbers.
llFetchUids = .T.
loMessageSet = createobject("CkMessageSet")
llSuccess = loImap.QueryMbx("UNSEEN",llFetchUids,loMessageSet)
if (llSuccess = .F.) then
    ? loImap.LastErrorText
    release loImap
    release loMessageSet
    return
endif

lnNumUnseen = loMessageSet.Count
? str(lnNumUnseen)

? "UIDs ----"

// Display the UIDs
i = 0
do while i < loMessageSet.Count
    ? str(loMessageSet.GetId(i))
    i = i + 1
enddo

// Disconnect from the IMAP server.
llSuccess = loImap.Disconnect()


release loImap
release loMessageSet