Unicode C

Get an Email's MIME into a StringBuilder

Demonstrates the Chilkat Email.GetMimeSb method, which returns the email as MIME text (header, body or bodies, related items, and all attachments) by appending it to a StringBuilder object. This example builds a message and appends its MIME to a StringBuilder.

Background: This is a StringBuilder-based alternative to GetMime, which returns a plain string. Writing into a StringBuilder is more efficient when the MIME is large or when you intend to further manipulate it — searching, replacing, or accumulating additional text — without creating many intermediate string copies.

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Unicode C

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

void ChilkatSample(void)
    {
    BOOL success;
    HCkEmailW email;
    HCkStringBuilderW sbMime;

    success = FALSE;

    //  Demonstrates the GetMimeSb method, which returns the email as MIME text (headers, bodies,
    //  related items, and attachments), appending it to a StringBuilder object.

    email = CkEmailW_Create();
    CkEmailW_putSubject(email,L"GetMimeSb example");
    CkEmailW_putFrom(email,L"alice@example.com");
    CkEmailW_AddTo(email,L"Bob",L"bob@example.com");
    CkEmailW_putBody(email,L"Hello!");

    //  Append the complete MIME to a StringBuilder.
    sbMime = CkStringBuilderW_Create();
    success = CkEmailW_GetMimeSb(email,sbMime);
    if (success == FALSE) {
        wprintf(L"%s\n",CkEmailW_lastErrorText(email));
        CkEmailW_Dispose(email);
        CkStringBuilderW_Dispose(sbMime);
        return true;
    }

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


    CkEmailW_Dispose(email);
    CkStringBuilderW_Dispose(sbMime);

    }