Unicode C

Get an Alternative Body into a BinData

Demonstrates the Chilkat Email.GetAlternativeBodyBd method, which copies the contents of the Nth alternative body into a BinData object. The first alternative body is at index 0, and it should only be called when NumAlternatives is greater than 0. This example builds a message with plain-text and HTML alternatives and copies the first into a BinData.

Background: This is the binary counterpart to GetAlternativeBody (which returns text). Reading an alternative into a BinData preserves the exact bytes — important when a body part uses a binary or unusual transfer encoding, or when you intend to hash it or write it out verbatim rather than decode it to a string.

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Unicode C

#include <C_CkEmailW.h>
#include <C_CkBinDataW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkEmailW email;
    HCkBinDataW bd;

    success = FALSE;

    //  Demonstrates the GetAlternativeBodyBd method, which copies the contents of the Nth
    //  alternative body into a BinData object.  The first alternative body is at index 0; call
    //  only when NumAlternatives is greater than 0.

    email = CkEmailW_Create();
    CkEmailW_putSubject(email,L"GetAlternativeBodyBd example");

    CkEmailW_SetTextBody(email,L"This is the plain-text alternative.",L"text/plain");
    CkEmailW_AddHtmlAlternativeBody(email,L"<html><body>This is the HTML alternative.</body></html>");

    //  Copy the first alternative body (index 0) into a BinData object.
    bd = CkBinDataW_Create();

    success = CkEmailW_GetAlternativeBodyBd(email,0,bd);
    if (success == FALSE) {
        wprintf(L"%s\n",CkEmailW_lastErrorText(email));
        CkEmailW_Dispose(email);
        CkBinDataW_Dispose(bd);
        return true;
    }

    wprintf(L"Alternative 0 size (bytes) = %d\n",CkBinDataW_getNumBytes(bd));


    CkEmailW_Dispose(email);
    CkBinDataW_Dispose(bd);

    }