Lua

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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Lua

local chilkat = require("chilkat")

-- 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.

local email = chilkat.Email.new()
email.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.
local success = email:save_related_item(0, "qa_output/related")
if not success then
    print(email.last_error_text)
    return
end

print("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.