Unicode C

Get the Number of IMAP Attachments

Demonstrates the Chilkat Imap.GetMailNumAttach method, which returns the number of ordinary attachments on a message. The only argument is the Email. This example fetches only the headers and reports the attachment count.

Background: A header-only fetch downloads no attachment bodies, so the Email object's own downloaded-attachment count can be 0. GetMailNumAttach instead reads the ckx-imap-numAttach metadata, giving the true count — which is what you want when building a message list that shows whether each message has attachments.

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#include <C_CkImapW.h>
#include <C_CkEmailW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkImapW imap;
    BOOL headersOnly;
    BOOL useUid;
    int seqNum;
    HCkEmailW email;
    int numAttach;

    success = FALSE;

    //  Demonstrates the Imap.GetMailNumAttach method, which returns the number of ordinary
    //  attachments on a message.  The only argument is the Email.

    imap = CkImapW_Create();

    CkImapW_putSsl(imap,TRUE);
    CkImapW_putPort(imap,993);

    success = CkImapW_Connect(imap,L"imap.example.com");
    if (success == FALSE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

    success = CkImapW_Login(imap,L"user@example.com",L"myPassword");
    if (success == FALSE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

    success = CkImapW_SelectMailbox(imap,L"Inbox");
    if (success == FALSE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

    //  Fetch only the message headers.  Attachment bodies are NOT downloaded, but the ckx-imap-*
    //  metadata describing the attachments is present, so the attachment info methods still work.
    headersOnly = TRUE;
    useUid = FALSE;
    seqNum = 1;
    email = CkEmailW_Create();
    success = CkImapW_FetchEmail(imap,headersOnly,seqNum,useUid,email);
    if (success == FALSE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        CkEmailW_Dispose(email);
        return;
    }

    numAttach = CkImapW_GetMailNumAttach(imap,email);
    wprintf(L"This message has %d attachment(s).\n",numAttach);

    success = CkImapW_Disconnect(imap);
    if (success == FALSE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        CkEmailW_Dispose(email);
        return;
    }



    CkImapW_Dispose(imap);
    CkEmailW_Dispose(email);

    }