Unicode C

Get the Decoded MIME Body Bytes (BinData)

Demonstrates the Chilkat Mime.GetBodyBd method, which replaces the contents of a BinData with the decoded body bytes of the current part. The only argument is the BinData. Base64 and quoted-printable are decoded; headers and boundaries are not included.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: This is how you extract a part's actual content as bytes — the decoded payload of an attachment or an image, ready to hash, re-save, or hand to another API. Because it works in raw bytes it is the correct choice for binary parts, where a text decode would be wrong. Note it replaces the BinData contents rather than appending.

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Unicode C

#include <C_CkMimeW.h>
#include <C_CkBinDataW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkMimeW mime;
    HCkBinDataW bd;

    success = FALSE;

    mime = CkMimeW_Create();
    success = CkMimeW_LoadMimeFile(mime,L"qa_data/message.eml");
    if (success == FALSE) {
        wprintf(L"%s\n",CkMimeW_lastErrorText(mime));
        CkMimeW_Dispose(mime);
        return;
    }

    //  Replace the contents of a BinData with the decoded body bytes of the current part.  Base64 and
    //  quoted-printable are decoded; MIME headers and multipart boundaries are not included.
    bd = CkBinDataW_Create();
    success = CkMimeW_GetBodyBd(mime,bd);
    if (success == FALSE) {
        wprintf(L"%s\n",CkMimeW_lastErrorText(mime));
        CkMimeW_Dispose(mime);
        CkBinDataW_Dispose(bd);
        return;
    }

    wprintf(L"Decoded body: %d bytes.\n",CkBinDataW_getNumBytes(bd));


    CkMimeW_Dispose(mime);
    CkBinDataW_Dispose(bd);

    }