Convert HTML Web Page to Email and Send

Converts an HTML page at a URL into an email with embedded images and sends it.

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#include <C_CkMailMan.h>
#include <C_CkMht.h>
#include <C_CkEmail.h>

void ChilkatSample(void)
    {
    HCkMailMan mailman;
    HCkMht mht;
    BOOL success;
    HCkEmail email;

    //  The mailman object is used for receiving (POP3)
    //  and sending (SMTP) email.
    mailman = CkMailMan_Create();

    //  The MHT component can be used to convert an HTML page
    //  from a URL, file, or in-memory HTML into an email
    //  with embedded images and style sheets.
    mht = CkMht_Create();

    //  Any string argument automatically begins the 30-day trial.

    success = CkMailMan_UnlockComponent(mailman,"30-day trial");
    if (success != TRUE) {
        printf("MailMan component unlock failed\n");
        return;
    }

    success = CkMht_UnlockComponent(mht,"30-day trial");
    if (success != TRUE) {
        printf("Mht component unlock failed\n");
        return;
    }

    //  There are two ways of embedding images in emails: with CIDs
    //  and without.  When using CIDs, the IMG SRC attributes use
    //  urls that begin with "CID:" and the corresponding image
    //  embedded within the email includes a Content-ID header field.
    //  When not using CIDs, the IMG SRC attribute can have a URL,
    //  path, etc. and the corresponding image embedded within
    //  the email has a matching Content-Location header field.

    //  When testing with GMail, if CIDs are used the email will
    //  be displayed with images blocked (by default) unless
    //  the user allows them to be displayed.  Without CIDs,
    //  the images are automatically displayed.

    //  When testing with Eudora, Mozilla Thunderbird, and Outlook Express,
    //  embedded images display correctly with our without CIDs.

    //  When testing with Yahoo! Mail, embedded images display OK.
    //  However, the Yahoo! Mail user has the option of blocking
    //  images.  If this is turned on, the CID images will still
    //  display correctly even though images are blocked.  Why?
    //  It's because when viewing the email there is no external
    //  HTTP request to fetch an image.  Therefore, a spammer
    //  cannot get an indication that you've read the email.
    //  However, if CIDs are not used, the images are blocked by
    //  any Yahoo! Mail user that has image blocking turned on --
    //  even though the images are embedded.

    //  I haven't tested Hotmail yet...
    //  Regardless, there is no perfect solution.  If CIDs are used,
    //  GMail users may block your embedded images, if CIDs are not
    //  used, Yahoo! Mail users may block your embedded images.

    //  I recommend setting using CIDs.  This is what Mozilla Thunderbird
    //  does by default, and it's the more clear an unambiguous way
    //  to indicate that images are indeed embedded.
    CkMht_putUseCids(mht,TRUE);

    email = CkMht_GetEmail(mht,"http://www.bonairefishing.com/");
    if (email == 0 ) {
        printf("%s\n",CkMht_lastErrorText(mht));
        return;
    }

    CkEmail_putSubject(email,"Test HTML email");

    //  This example is tested in:
    //  Outlook 2000, Eudora 7, Mozilla Thunderbird 1.5.0.9, Outlook Express 6, GMail, Yahoo Mail
    CkEmail_AddTo(email,"Chilkat Support","support@chilkatsoft.com");

    //  Note: Chilkat does not regularly check our GMail and Yahoo
    //  email accounts.  Please send support email to support@chilkatsoft.com
    CkEmail_AddTo(email,"Chilkat on Yahoo","chilkat_software@yahoo.com");
    CkEmail_AddTo(email,"Chilkat on GMail","chilkat.support@gmail.com");

    CkEmail_putFrom(email,"admin@chilkatsoft.com");

    CkMailMan_putSmtpHost(mailman,"smtp.comcast.net");

    success = CkMailMan_SendEmail(mailman,email);
    if (success != TRUE) {
        printf("%s\n",CkMailMan_lastErrorText(mailman));
        return;
    }

    CkEmail_Dispose(email);

    printf("HTML Email Sent!\n");

    CkMailMan_Dispose(mailman);
    CkMht_Dispose(mht);

    }