Unicode C++

Add an Attachment from a BinData Object

Demonstrates the Chilkat Email.AddAttachmentBd method, which adds an attachment using the contents of a BinData object. The first argument is the attachment filename, the second is the BinData, and the third is the content type — if empty, it is inferred from the filename extension. This example loads a PDF into a BinData and attaches it.

Background: BinData is Chilkat's container for raw binary data. Attaching from a BinData is the right approach when the file's bytes are already in memory — generated on the fly, downloaded, or read from a database — rather than sitting on disk (which would use AddFileAttachment). Chilkat Base64-encodes the bytes into the message automatically.

Chilkat Unicode C++ Downloads

Download Chilkat for Unicode C++

Unicode C++

#include <CkEmailW.h>
#include <CkBinDataW.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  Demonstrates the AddAttachmentBd method, which adds an attachment using the contents of a
    //  BinData object.  The first argument is the attachment filename, the second is the BinData
    //  object, and the third is the content type (inferred from the filename extension if empty).

    CkEmailW email;
    email.put_Subject(L"Attach from BinData");
    email.put_Body(L"Please see the attached file.");

    //  Load a file into a BinData object, then attach it.
    CkBinDataW bd;
    success = bd.LoadFile(L"qa_data/attachments/report.pdf");
    if (success == false) {
        wprintf(L"%s\n",bd.lastErrorText());
        return;
    }

    success = email.AddAttachmentBd(L"report.pdf",bd,L"application/pdf");
    if (success == false) {
        wprintf(L"%s\n",email.lastErrorText());
        return;
    }

    wprintf(L"NumAttachments = %d\n",email.get_NumAttachments());

    //  Note: The path "qa_data/attachments/report.pdf" is a relative local filesystem path,
    //  relative to the current working directory of the running application.
    }