Rust

Save a Related Item to Disk

Demonstrates the Chilkat Email.SaveRelatedItem method, which saves the related item at a given zero-based index to a directory. If the directory or any of its components do not exist, Chilkat creates them. This example adds a related style sheet and saves it.

Background: Related items are the inline resources (images, style sheets) an HTML email carries in its multipart/related enclosure. SaveRelatedItem writes one of them out as a file — a building block for tasks like extracting a specific embedded image, or manually unpacking a message when you want finer control than the all-in-one UnpackHtml / AspUnpack methods provide.

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// Demonstrates the SaveRelatedItem method, which saves the related item at a given
// zero-based index to a directory.  If the directory (or any of its components) does not
// exist, Chilkat creates it.

let email = chilkat::Email::new();
email.set_subject("Save a related item");

// Set an HTML body that references a related style sheet by name.
email.set_html_body("<html><head><link rel=\"stylesheet\" href=\"styles.css\"/></head><body>Styled.</body></html>");
email.add_related_string2("styles.css", "body { color: navy; }", "utf-8");

// Save the related item at index 0 into the specified directory.
if email.save_related_item(0, "qa_output/related").is_err() {
    println!("{}", email.last_error_text());
    return;
}

println!("Saved related item 0.");

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