Fetch a Range of POP3 Messages

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Demonstrates the Chilkat MailMan.FetchRange method, which retrieves a range of messages from the POP3 mailbox and appends them to an EmailBundle. The arguments are keepOnServer, headersOnly, numBodyLines, a zero-based inclusive startIndex and endIndex, and the EmailBundle. This example fetches the first five messages.

#include <CkMailMan.h>
#include <CkEmailBundle.h>
#include <CkEmail.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  Demonstrates the MailMan.FetchRange method, which retrieves a range of messages from the
    //  POP3 mailbox and appends them to an EmailBundle.  The arguments are keepOnServer,
    //  headersOnly, numBodyLines, startIndex, endIndex, and the EmailBundle.  The indexes are
    //  zero-based and inclusive.

    CkMailMan mailman;

    //  Configure the POP3 server connection.
    mailman.put_MailHost("pop.example.com");
    mailman.put_MailPort(995);
    mailman.put_PopSsl(true);
    mailman.put_PopUsername("user@example.com");
    mailman.put_PopPassword("myPassword");

    //  Fetch the first 5 messages (indexes 0 through 4), full bodies, leaving them on the server.
    //  keepOnServer=true, headersOnly=false (fetch the entire message).
    //  Note: numBodyLines only applies when headersOnly is true (it sets how many lines of the
    //  body to include along with the headers).  When headersOnly is false, the entire message
    //  is fetched and numBodyLines is ignored.
    CkEmailBundle bundle;

    success = mailman.FetchRange(true,false,0,0,4,bundle);
    if (success == false) {
        std::cout << mailman.lastErrorText() << "\r\n";
        return;
    }

    int n = bundle.get_MessageCount();
    std::cout << "Fetched " << n << " messages." << "\r\n";

    CkEmail email;
    int i;
    for (i = 0; i <= n - 1; i++) {
        success = bundle.EmailAt(i,email);
        std::cout << email.subject() << "\r\n";
    }

    //  Note: Explicitly connecting/authenticating is optional.  Chilkat MailMan automatically
    //  connects and authenticates -- using the property settings above -- whenever a server
    //  operation requires it.  Calling the explicit connect/authenticate methods can still be
    //  helpful to determine whether a failure occurs while connecting or while authenticating.
    }