C

Mark IMAP Email as Read/Unread (Seen/Unseen)

Demonstrates how to mark emails as read or unread. C

#include <C_CkImap.h>
#include <C_CkEmail.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkImap imap;
    int numMsgs;
    HCkEmail email;
    int i;
    BOOL bIsUid;

    success = FALSE;

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

    imap = CkImap_Create();

    //  Connect to an IMAP server.
    //  Use TLS
    CkImap_putSsl(imap,TRUE);
    CkImap_putPort(imap,993);
    success = CkImap_Connect(imap,"imap.example.com");
    if (success == FALSE) {
        printf("%s\n",CkImap_lastErrorText(imap));
        CkImap_Dispose(imap);
        return;
    }

    //  Login
    success = CkImap_Login(imap,"myLogin","myPassword");
    if (success == FALSE) {
        printf("%s\n",CkImap_lastErrorText(imap));
        CkImap_Dispose(imap);
        return;
    }

    //  Select an IMAP mailbox
    success = CkImap_SelectMailbox(imap,"Inbox");
    if (success == FALSE) {
        printf("%s\n",CkImap_lastErrorText(imap));
        CkImap_Dispose(imap);
        return;
    }

    //  Set PeekMode so that downloaded messages are not
    //  automatically marked as seen.
    CkImap_putPeekMode(imap,TRUE);

    //  The NumMessages property contains the number of messages 
    //  in the currently selected mailbox.
    numMsgs = CkImap_getNumMessages(imap);
    if (numMsgs == 0) {
        CkImap_Dispose(imap);
        return;
    }

    email = CkEmail_Create();

    for (i = 1; i <= numMsgs; i++) {
        //  Download each email by sequence number (not UID)
        success = CkImap_FetchEmail(imap,FALSE,i,FALSE,email);
        if (success == FALSE) {
            printf("%s\n",CkImap_lastErrorText(imap));
            CkImap_Dispose(imap);
            CkEmail_Dispose(email);
            return;
        }

        //  If desired, mark the email as SEEN.  There are two
        //  ways to do it:

        //  1) Set the flag directly by using the sequence number
        //  Indicate that we are passing a sequence number and
        //  not a UID:
        bIsUid = FALSE;
        //  Set the SEEN flag = 1 to mark the email as SEEN,
        //  or set it to 0 to mark it as not-seen.
        success = CkImap_SetFlag(imap,i,bIsUid,"SEEN",1);
        if (success == FALSE) {
            printf("%s\n",CkImap_lastErrorText(imap));
            CkImap_Dispose(imap);
            CkEmail_Dispose(email);
            return;
        }

        //  2) Alternatively, we can use the email object.
        //  When an email is downloaded from the IMAP server
        //  Chilkat will add a "ckx-imap-uid" header to the email.
        //  This makes it possible to know the UID associated with
        //  the email.  (This is not the sequence number, which may change
        //  from session to session, but the UID which does not change.
        //  The SetMailFlag method is identical to SetFlag, except
        //  it gets the UID from the ckx-imap-uid header.
        //  For example:
        success = CkImap_SetMailFlag(imap,email,"SEEN",1);
        if (success == FALSE) {
            printf("%s\n",CkImap_lastErrorText(imap));
            CkImap_Dispose(imap);
            CkEmail_Dispose(email);
            return;
        }

    }

    //  Disconnect from the IMAP server.
    success = CkImap_Disconnect(imap);


    CkImap_Dispose(imap);
    CkEmail_Dispose(email);

    }