Unicode C

Render an Email to MIME in a StringBuilder

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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Unicode C

#include <C_CkMailManW.h>
#include <C_CkEmailW.h>
#include <C_CkStringBuilderW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkMailManW mailman;
    HCkEmailW email;
    HCkStringBuilderW 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 = CkMailManW_Create();

    //  Build the email to render.
    email = CkEmailW_Create();
    CkEmailW_putSubject(email,L"Rendered email");
    CkEmailW_putFrom(email,L"alice@example.com");
    CkEmailW_AddTo(email,L"Bob",L"bob@example.com");
    CkEmailW_putBody(email,L"This message is rendered to MIME in a StringBuilder.");

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

    success = CkMailManW_RenderToMimeSb(mailman,email,sbMime);
    if (success == FALSE) {
        wprintf(L"%s\n",CkMailManW_lastErrorText(mailman));
        CkMailManW_Dispose(mailman);
        CkEmailW_Dispose(email);
        CkStringBuilderW_Dispose(sbMime);
        return;
    }

    wprintf(L"%s\n",CkStringBuilderW_getAsString(sbMime));


    CkMailManW_Dispose(mailman);
    CkEmailW_Dispose(email);
    CkStringBuilderW_Dispose(sbMime);

    }