(PowerBuilder) Fetch Oldest/Newest IMAP Email

Emails may be downloaded by sequence number. Assuming the selected mailbox is not empty, the oldest email is at sequence number 1, and the newest email is at sequence number N. The FetchSingle method may be used to download by sequence number.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

integer li_rc
oleobject loo_Imap
integer li_Success
integer n
integer li_IsUid
oleobject loo_OldestEmail
oleobject loo_NewestEmail

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

loo_Imap = create oleobject
// Use "Chilkat_9_5_0.Imap" for versions of Chilkat < 10.0.0
li_rc = loo_Imap.ConnectToNewObject("Chilkat.Imap")
if li_rc < 0 then
    destroy loo_Imap
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// Connect to an IMAP server.
// Use TLS
loo_Imap.Ssl = 1
loo_Imap.Port = 993
li_Success = loo_Imap.Connect("mail.testemail.net")
if li_Success <> 1 then
    Write-Debug loo_Imap.LastErrorText
    destroy loo_Imap
    return
end if

// Login
li_Success = loo_Imap.Login("***","***")
if li_Success <> 1 then
    Write-Debug loo_Imap.LastErrorText
    destroy loo_Imap
    return
end if

// Select an IMAP mailbox
li_Success = loo_Imap.SelectMailbox("Inbox")
if li_Success <> 1 then
    Write-Debug loo_Imap.LastErrorText
    destroy loo_Imap
    return
end if

// After selecting a mailbox, the NumMessages property
// contains the number of emails in the selected mailbox.

n = loo_Imap.NumMessages

if n > 0 then

    // The oldest email is always at sequence number 1.
    li_IsUid = 0

    loo_OldestEmail = loo_Imap.FetchSingle(1,li_IsUid)
    if loo_Imap.LastMethodSuccess = 1 then

        // Display the From and Subject
        Write-Debug loo_OldestEmail.FromAddress
        Write-Debug loo_OldestEmail.Subject

        Write-Debug "--"
        destroy loo_OldestEmail
    end if

    // The newest email is at sequence number N:

    loo_NewestEmail = loo_Imap.FetchSingle(n,li_IsUid)
    if loo_Imap.LastMethodSuccess = 1 then

        // Display the From and Subject
        Write-Debug loo_NewestEmail.FromAddress
        Write-Debug loo_NewestEmail.Subject

        destroy loo_NewestEmail
    end if

end if

// Disconnect from the IMAP server.
li_Success = loo_Imap.Disconnect()


destroy loo_Imap