C++

Create a multipart/mixed MIME Entity

Demonstrates the Chilkat Mime.NewMultipartMixed method, which initializes the object as an empty multipart/mixed entity, clearing any existing content. It takes no arguments; child parts are then appended.

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: multipart/mixed is the container for independent parts shown one after another — the classic "message body plus attachments" layout. Each child is its own distinct content, unlike multipart/alternative (competing renderings of the same thing) or multipart/related (a part and its embedded resources). Start here, then AppendPart a body and AppendPartFromFile the attachments.

Chilkat C++ Downloads

Download Chilkat for C++

C++

#include <CkMime.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  Demonstrates the Mime.NewMultipartMixed method, which initializes the object as an empty
    //  multipart/mixed entity, clearing any existing headers, body, and child parts.  It takes no
    //  arguments.

    CkMime mime;

    success = mime.NewMultipartMixed();
    if (success == false) {
        std::cout << mime.lastErrorText() << "\r\n";
        return;
    }

    //  Append child parts.  multipart/mixed is the container for a message body plus attachments.
    CkMime bodyPart;
    success = bodyPart.SetBodyFromPlainText("See the attached report.");
    if (success == false) {
        std::cout << bodyPart.lastErrorText() << "\r\n";
        return;
    }

    success = mime.AppendPart(bodyPart);
    if (success == false) {
        std::cout << mime.lastErrorText() << "\r\n";
        return;
    }

    success = mime.AppendPartFromFile("qa_data/report.pdf");
    if (success == false) {
        std::cout << mime.lastErrorText() << "\r\n";
        return;
    }

    std::cout << "Number of parts: " << mime.get_NumParts() << "\r\n";
    }