Rust

Set the Email Body from a BinData

Demonstrates the Chilkat Email.SetBodyBd method, which sets the main email body from the binary data in a BinData object. The second argument is the MIME Content-Type, the third is the disposition (may be empty, inline, or attachment), and the fourth is the filename. This example loads HTML content into a BinData and sets it as the body.

Background: SetBodyBd gives low-level control over the body when you already have its bytes and want to specify the exact Content-Type and MIME disposition yourself. It suits content that is generated or stored as binary — for example an EDI payload, a pre-rendered HTML fragment, or any custom content type — where the convenience of SetHtmlBody / SetTextBody does not apply.

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// Demonstrates the SetBodyBd method, which sets the main email body from the binary data in
// a BinData object.  The second argument is the MIME Content-Type, the third is the
// disposition (may be empty, "inline", or "attachment"), and the fourth is the filename.

let email = chilkat::Email::new();
email.set_subject("Body from BinData");

// Load the body content from a file into a BinData object.
let bd = chilkat::BinData::new();
if bd.load_file("qa_data/html/body.html").is_err() {
    println!("{}", bd.last_error_text());
    return;
}

// Set the main body from the binary data as text/html.
if email.set_body_bd(&bd, "text/html", "", "").is_err() {
    println!("{}", email.last_error_text());
    return;
}

println!("HasHtmlBody: {}", email.has_html_body());

// Note: The path "qa_data/html/body.html" is a relative local filesystem path,
// relative to the current working directory of the running application.