Render an Email to MIME in a StringBuilder

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Demonstrates the Chilkat MailMan.RenderToMimeSb method, which renders an Email object as MIME text and appends the result to a StringBuilder, without sending the email. This example renders a message into a StringBuilder and prints it.

Background: This is the StringBuilder version of RenderToMime. Appending into a StringBuilder is more efficient when the MIME is large or when you plan to further inspect or manipulate it — searching, replacing, or accumulating additional text — without creating extra intermediate string copies.

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

void ChilkatSample(void)
    {
    BOOL success;
    HCkMailMan mailman;
    HCkEmail email;
    HCkStringBuilder sbMime;

    success = FALSE;

    //  Demonstrates the MailMan.RenderToMimeSb method, which renders an Email object as MIME text
    //  and appends the result to a StringBuilder (without sending the email).

    mailman = CkMailMan_Create();

    //  Build the email to render.
    email = CkEmail_Create();
    CkEmail_putSubject(email,"Rendered email");
    CkEmail_putFrom(email,"alice@example.com");
    CkEmail_AddTo(email,"Bob","bob@example.com");
    CkEmail_putBody(email,"This message is rendered to MIME in a StringBuilder.");

    //  Render the MIME into a StringBuilder.
    sbMime = CkStringBuilder_Create();

    success = CkMailMan_RenderToMimeSb(mailman,email,sbMime);
    if (success == FALSE) {
        printf("%s\n",CkMailMan_lastErrorText(mailman));
        CkMailMan_Dispose(mailman);
        CkEmail_Dispose(email);
        CkStringBuilder_Dispose(sbMime);
        return;
    }

    printf("%s\n",CkStringBuilder_getAsString(sbMime));


    CkMailMan_Dispose(mailman);
    CkEmail_Dispose(email);
    CkStringBuilder_Dispose(sbMime);

    }