Tcl

Add a Related String Addressed by Name

Demonstrates the Chilkat Email.AddRelatedString2 method, which adds a related item from an in-memory string, addressed by the name used in the HTML rather than by a generated Content-ID. The first argument should match the filename used in an HTML img src or a stylesheet link href; the second is the Unicode content; the third is the charset it is converted to. Related items are images and style sheets embedded to support the HTML display — they are not attachments. This example embeds a CSS style sheet referenced as styles.css.

Background: This is the string-based, Content-Location counterpart to AddRelatedString. Instead of the HTML pointing at a cid: URL, it keeps a natural reference like href="styles.css", and the related part is matched to it by name. That makes it a good fit when you are turning existing web content into email and want the original relative references to keep working without rewriting them.

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load ./chilkat.dll

#  Demonstrates the AddRelatedString2 method, which adds a related item to the email from
#  an in-memory string, addressed by the name used in the HTML (Content-Location).  The first
#  argument is the filename used in the HTML reference, the second is the content, and the
#  third is the charset.

set email [new_CkEmail]

CkEmail_put_Subject $email "Email with a related style sheet (by name)"

#  The HTML references the style sheet by the same name used for the related item.
CkEmail_SetHtmlBody $email "<html><head><link rel=\"stylesheet\" href=\"styles.css\"/></head><body>Styled.</body></html>"

#  Add the style sheet as a related item addressed by the name used in the HTML.
CkEmail_AddRelatedString2 $email "styles.css" "body { color: navy; }" "utf-8"

puts "NumRelatedItems = [CkEmail_get_NumRelatedItems $email]"

delete_CkEmail $email