Set a MIME Body from Binary Bytes (BinData)

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Demonstrates the Chilkat Mime.SetBodyBd method, which sets the decoded body bytes from a BinData, changes the transfer encoding to base64, and preserves the bytes exactly. The only argument is the BinData.

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 the direct way to put arbitrary binary content into a part from memory — a generated image, a decrypted blob — without a temporary file. Chilkat base64-encodes it so the bytes survive text-based transports unchanged. Note it does not set a Content-Type or disposition, so assign those yourself to describe what the bytes are.

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#include <C_CkBinData.h>
#include <C_CkMime.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkBinData bd;
    HCkMime mime;

    success = FALSE;

    //  Demonstrates the Mime.SetBodyBd method, which sets the decoded body bytes from a BinData,
    //  changes the transfer encoding to base64, and preserves the bytes exactly.  The only argument is
    //  the BinData.

    //  Put the binary body bytes into a BinData.
    bd = CkBinData_Create();
    success = CkBinData_LoadFile(bd,"qa_data/photo.jpg");
    if (success == FALSE) {
        printf("%s\n",CkBinData_lastErrorText(bd));
        CkBinData_Dispose(bd);
        return;
    }

    mime = CkMime_Create();

    //  Set a Content-Type for the binary content (SetBodyBd does not set one itself).
    CkMime_putContentType(mime,"image/jpeg");

    success = CkMime_SetBodyBd(mime,bd);
    if (success == FALSE) {
        printf("%s\n",CkMime_lastErrorText(mime));
        CkBinData_Dispose(bd);
        CkMime_Dispose(mime);
        return;
    }

    printf("Body set from %d bytes.\n",CkBinData_getNumBytes(bd));


    CkBinData_Dispose(bd);
    CkMime_Dispose(mime);

    }