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PureBasic Examples

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(PureBasic) Read IMAP Email Headers

Call FetchHeaders to download only the email headers.

Chilkat PureBasic Module Download

Chilkat PureBasic Module

IncludeFile "CkImap.pb"
IncludeFile "CkEmailBundle.pb"
IncludeFile "CkMessageSet.pb"
IncludeFile "CkEmail.pb"

Procedure ChilkatExample()

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

    imap.i = CkImap::ckCreate()
    If imap.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; Connect to an IMAP server.
    ; Use TLS
    CkImap::setCkSsl(imap, 1)
    CkImap::setCkPort(imap, 993)
    success.i = CkImap::ckConnect(imap,"imap.someMailServer.com")
    If success <> 1
        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        ProcedureReturn
    EndIf

    ; Login
    success = CkImap::ckLogin(imap,"****","****")
    If success <> 1
        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        ProcedureReturn
    EndIf

    ; Select an IMAP mailbox
    success = CkImap::ckSelectMailbox(imap,"Inbox")
    If success <> 1
        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        ProcedureReturn
    EndIf

    messageSet.i
    ; We can choose to fetch UIDs or sequence numbers.
    fetchUids.i = 1
    ; Get the message IDs of all the emails in the mailbox
    messageSet = CkImap::ckSearch(imap,"ALL",fetchUids)
    If CkImap::ckLastMethodSuccess(imap) <> 1
        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        ProcedureReturn
    EndIf

    ; When downloading headers, each email object contains
    ; (obviously) the headers, but the body will be missing.
    ; Also, attachments will not be included.  However, it is
    ; possible to get information about the attachments
    ; as well as the complete size of the email.
    bundle.i
    bundle = CkImap::ckFetchHeaders(imap,messageSet)
    If CkImap::ckLastMethodSuccess(imap) <> 1
        CkMessageSet::ckDispose(messageSet)

        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        ProcedureReturn
    EndIf

    ; Loop over the email objects and display information
    ; about each:
    i.i
    For i = 0 To CkEmailBundle::ckMessageCount(bundle) - 1
        email.i
        email = CkEmailBundle::ckGetEmail(bundle,i)

        ; Display the From and Subject
        Debug CkEmail::ckFrom(email)
        Debug CkEmail::ckSubject(email)

        ; Display the recipients:
        j.i
        name.s
        addr.s
        For j = 0 To CkEmail::ckNumTo(email) - 1
            name = CkEmail::ckGetToName(email,j)
            addr = CkEmail::ckGetToAddr(email,j)
            Debug name + ", " + addr
        Next
        For j = 0 To CkEmail::ckNumCC(email) - 1
            name = CkEmail::ckGetCcName(email,j)
            addr = CkEmail::ckGetCcAddr(email,j)
            Debug name + ", " + addr
        Next

        ; Show the total size of the email, including body and attachments:
        Debug Str(CkEmail::ckSize(email))

        ; When a full email is downloaded, we would use the
        ; email.NumAttachments property in conjunction with the
        ; email.GetMailAttach* methods.
        ; However, when an email object contains only the header,
        ; we need to access the attachment info differently:
        numAttach.i = CkImap::ckGetMailNumAttach(imap,email)
        For j = 0 To numAttach - 1
            Debug CkImap::ckGetMailAttachFilename(imap,email,j)
            attachSize.i = CkImap::ckGetMailAttachSize(imap,email,j)
            Debug "    size = " + Str(attachSize) + " bytes"
        Next

        Debug "--"
        CkEmail::ckDispose(email)

    Next

    ; Disconnect from the IMAP server.
    success = CkImap::ckDisconnect(imap)

    CkMessageSet::ckDispose(messageSet)

    CkEmailBundle::ckDispose(bundle)



    CkImap::ckDispose(imap)


    ProcedureReturn
EndProcedure

 

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