(C++) Create Apple Watch HTML (text/watch-html) Email

Demonstrates how to create an Apple Watch text/watch-html email.

Note: This example requires Chilkat v11.0.0 or greater.

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#include <CkEmail.h>
#include <CkMime.h>

void ChilkatSample(void)
    {
    bool success = false;

    // This example will produce an email such as:

    // 	MIME-Version: 1.0
    // 	Date: Fri, 02 Jun 2017 09:17:06 -0500
    // 	Message-ID: <E6F1F17104442EA09740322D3E2E78806C87FB80@CHILKAT13>
    // 	X-Priority: 3 (Normal)
    // 	Subject: Apple Watch Example
    // 	From: from@example.org
    // 	To: to@example.org
    // 	Content-Type: multipart/alternative; boundary="------------080904030200000307060803"
    // 
    // 	--------------080904030200000307060803
    // 	Content-Type: text/plain; charset=utf-8
    // 	Content-Transfer-Encoding: quoted-printable
    // 	Content-Disposition: inline
    // 
    // 	This is the plain text part.
    // 	--------------080904030200000307060803
    // 	Content-Type: text/watch-html; charset=utf-8
    // 	Content-Disposition: inline
    // 	Content-Transfer-Encoding: quoted-printable
    // 
    // 	<b>This is the Watch HTML part</b>
    // 	--------------080904030200000307060803
    // 	Content-Type: text/html; charset=utf-8
    // 	Content-Disposition: inline
    // 	Content-Transfer-Encoding: quoted-printable
    // 
    // 	<p>This is the standard HTML part</p>
    // 	--------------080904030200000307060803--

    // Create a new email instance to get the default auto-created fields.
    CkEmail email;
    email.put_Body("This is the plain text part.");
    email.put_Subject("Apple Watch Example");
    email.put_From("from@example.org");
    email.AddTo("","to@example.org");

    std::cout << email.getMime() << "\r\n";
    std::cout << "--" << "\r\n";

    // This is the MIME so far:
    // (Chilkat automatically removes CKX-* headers when sending email.)

    // 	MIME-Version: 1.0
    // 	Date: Fri, 02 Jun 2017 09:17:06 -0500
    // 	Message-ID: <E6F1F17104442EA09740322D3E2E78806C87FB80@CHILKAT13>
    // 	Content-Type: text/plain; format=flowed
    // 	Content-Transfer-Encoding: 7bit
    // 	X-Priority: 3 (Normal)
    // 	Subject: Apple Watch Example
    // 	From: from@example.org
    // 	To: to@example.org
    // 
    // 	This is the plain text part.

    // We'll use the Chilkat MIME object to build it.
    // The MIME API provides more flexibility..
    CkMime mime;
    mime.LoadMime(email.getMime());

    // Convert this MIME to multipart/alternative.
    mime.ConvertToMultipartAlt();

    std::cout << mime.getMime() << "\r\n";
    std::cout << "--" << "\r\n";

    // We now have this MIME:

    // 	MIME-Version: 1.0
    // 	Date: Fri, 02 Jun 2017 09:17:06 -0500
    // 	Message-ID: <E6F1F17104442EA09740322D3E2E78806C87FB80@CHILKAT13>
    // 	X-Priority: 3 (Normal)
    // 	Subject: Apple Watch Example
    // 	From: from@example.org
    // 	To: to@example.org
    // 	Content-Type: multipart/alternative; boundary="------------080904030200000307060803"
    // 
    // 	--------------080904030200000307060803
    // 	Content-Type: text/plain; format=flowed
    // 	Content-Transfer-Encoding: 7bit
    // 
    // 	This is the plain text part.
    // 	--------------080904030200000307060803--

    // If we desire a particular charset, encoding, or disposition..

    CkMime partPlainText;
    success = mime.PartAt(0,partPlainText);
    if (success == false) {
        std::cout << mime.lastErrorText() << "\r\n";
        return;
    }

    partPlainText.put_Charset("utf-8");
    partPlainText.put_Disposition("inline");
    partPlainText.put_Encoding("quoted-printable");

    // Create the text/watch-html MIME part and add it.
    CkMime partWatchHtml;
    partWatchHtml.put_ContentType("text/watch-html");
    partWatchHtml.put_Charset("utf-8");
    partWatchHtml.put_Disposition("inline");
    partWatchHtml.put_Encoding("quoted-printable");
    partWatchHtml.SetBody("<b>This is the Watch HTML part</b>");
    mime.AppendPart(partWatchHtml);

    std::cout << mime.getMime() << "\r\n";
    std::cout << "--" << "\r\n";

    // We now have this MIME:

    // 	MIME-Version: 1.0
    // 	Date: Fri, 02 Jun 2017 09:17:06 -0500
    // 	Message-ID: <E6F1F17104442EA09740322D3E2E78806C87FB80@CHILKAT13>
    // 	X-Priority: 3 (Normal)
    // 	Subject: Apple Watch Example
    // 	From: from@example.org
    // 	To: to@example.org
    // 	Content-Type: multipart/alternative; boundary="------------080904030200000307060803"
    // 
    // 	--------------080904030200000307060803
    // 	Content-Type: text/plain; charset=utf-8
    // 	Content-Transfer-Encoding: quoted-printable
    // 	Content-Disposition: inline
    // 
    // 	This is the plain text part.
    // 	--------------080904030200000307060803
    // 	Content-Type: text/watch-html; charset=utf-8
    // 	Content-Disposition: inline
    // 	Content-Transfer-Encoding: quoted-printable
    // 
    // 	<b>This is the Watch HTML part</b>
    // 	--------------080904030200000307060803--

    // Create the text/html MIME part and add it.
    CkMime partHtml;
    partHtml.put_ContentType("text/html");
    partHtml.put_Charset("utf-8");
    partHtml.put_Disposition("inline");
    partHtml.put_Encoding("quoted-printable");
    partHtml.SetBody("<p>This is the standard HTML part</p>");
    mime.AppendPart(partHtml);

    std::cout << mime.getMime() << "\r\n";
    std::cout << "--" << "\r\n";

    // We now have this MIME:

    // 	MIME-Version: 1.0
    // 	Date: Fri, 02 Jun 2017 09:17:06 -0500
    // 	Message-ID: <E6F1F17104442EA09740322D3E2E78806C87FB80@CHILKAT13>
    // 	X-Priority: 3 (Normal)
    // 	Subject: Apple Watch Example
    // 	From: from@example.org
    // 	To: to@example.org
    // 	Content-Type: multipart/alternative; boundary="------------080904030200000307060803"
    // 
    // 	--------------080904030200000307060803
    // 	Content-Type: text/plain; charset=utf-8
    // 	Content-Transfer-Encoding: quoted-printable
    // 	Content-Disposition: inline
    // 
    // 	This is the plain text part.
    // 	--------------080904030200000307060803
    // 	Content-Type: text/watch-html; charset=utf-8
    // 	Content-Disposition: inline
    // 	Content-Transfer-Encoding: quoted-printable
    // 
    // 	<b>This is the Watch HTML part</b>
    // 	--------------080904030200000307060803
    // 	Content-Type: text/html; charset=utf-8
    // 	Content-Disposition: inline
    // 	Content-Transfer-Encoding: quoted-printable
    // 
    // 	<p>This is the standard HTML part</p>
    // 	--------------080904030200000307060803--

    // Load the email object with this MIME, and we're good to go..
    email.SetFromMimeText(mime.getMime());
    std::cout << email.getMime() << "\r\n";
    }