Unicode C

Set a MIME Body, Preserving Content Headers

Demonstrates the Chilkat Mime.SetBody method, which sets the current part's body while preserving the existing content headers (Content-Type, charset, Content-Transfer-Encoding). The only argument is the body text; it is a void method.

Background: Unlike the SetBodyFrom... methods, which set both the content and the headers that describe it, SetBody replaces only the body text and leaves the existing Content-Type and encoding in place. That is what you want when the media type is already correct and you simply need to swap in new content — updating a templated part, for instance — without re-declaring its type.

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Unicode C

#include <C_CkMimeW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkMimeW mime;
    const wchar_t *mimeText;

    success = FALSE;

    //  Demonstrates the Mime.SetBody method, which sets the current part's body while preserving the
    //  existing content headers (Content-Type, charset, Content-Transfer-Encoding).  The only argument
    //  is the body text.  It is a void method.

    mime = CkMimeW_Create();

    //  Establish the content headers first.
    success = CkMimeW_SetBodyFromPlainText(mime,L"initial");
    if (success == FALSE) {
        wprintf(L"%s\n",CkMimeW_lastErrorText(mime));
        CkMimeW_Dispose(mime);
        return;
    }

    //  Replace just the body text, keeping the existing Content-Type and encoding.
    CkMimeW_SetBody(mime,L"This is the replacement body text.");

    mimeText = CkMimeW_getMime(mime);
    if (CkMimeW_getLastMethodSuccess(mime) == FALSE) {
        wprintf(L"%s\n",CkMimeW_lastErrorText(mime));
        CkMimeW_Dispose(mime);
        return;
    }

    wprintf(L"%s\n",mimeText);


    CkMimeW_Dispose(mime);

    }