Unicode C

Set a MIME Body from Binary Bytes (BinData)

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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Unicode C

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

void ChilkatSample(void)
    {
    BOOL success;
    HCkBinDataW bd;
    HCkMimeW 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 = CkBinDataW_Create();
    success = CkBinDataW_LoadFile(bd,L"qa_data/photo.jpg");
    if (success == FALSE) {
        wprintf(L"%s\n",CkBinDataW_lastErrorText(bd));
        CkBinDataW_Dispose(bd);
        return;
    }

    mime = CkMimeW_Create();

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

    success = CkMimeW_SetBodyBd(mime,bd);
    if (success == FALSE) {
        wprintf(L"%s\n",CkMimeW_lastErrorText(mime));
        CkBinDataW_Dispose(bd);
        CkMimeW_Dispose(mime);
        return;
    }

    wprintf(L"Body set from %d bytes.\n",CkBinDataW_getNumBytes(bd));


    CkBinDataW_Dispose(bd);
    CkMimeW_Dispose(mime);

    }