Unicode C++

Fetch an IMAP Message's MIME into a BinData

Demonstrates the Chilkat Imap.FetchSingleBd method, which downloads one message's MIME bytes into a BinData object. If the second argument (bUid) is true, the first argument is a UID; otherwise it is a sequence number. This example downloads message 1's MIME into a BinData and prints the byte count.

Background: This is the binary counterpart to FetchSingleAsMime (which returns a string). A BinData holds raw bytes, so it preserves the message exactly — the right choice when you plan to write the MIME straight to a file, hash it, or hand it to an API expecting a byte buffer, with no charset conversion that could alter binary content.

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Unicode C++

#include <CkImapW.h>
#include <CkBinDataW.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  Demonstrates the Imap.FetchSingleBd method, which downloads one message's MIME bytes into a
    //  BinData object.  If the 2nd argument (bUid) is true, the 1st argument is a UID; otherwise
    //  it is a sequence number.

    CkImapW imap;

    imap.put_Ssl(true);
    imap.put_Port(993);

    success = imap.Connect(L"imap.example.com");
    if (success == false) {
        wprintf(L"%s\n",imap.lastErrorText());
        return;
    }

    success = imap.Login(L"user@example.com",L"myPassword");
    if (success == false) {
        wprintf(L"%s\n",imap.lastErrorText());
        return;
    }

    success = imap.SelectMailbox(L"Inbox");
    if (success == false) {
        wprintf(L"%s\n",imap.lastErrorText());
        return;
    }

    //  Download message sequence number 1's MIME bytes into a BinData.  bUid = false.
    CkBinDataW bdMime;
    success = imap.FetchSingleBd(1,false,bdMime);
    if (success == false) {
        wprintf(L"%s\n",imap.lastErrorText());
        return;
    }

    wprintf(L"MIME size (bytes) = %d\n",bdMime.get_NumBytes());

    success = imap.Disconnect();
    if (success == false) {
        wprintf(L"%s\n",imap.lastErrorText());
        return;
    }
    }