Tcl

Remove a Single Related Item from an Email

Demonstrates the Chilkat Email.DropRelatedItem method, which removes the related item at a given zero-based index. A related item is typically an embedded image or style sheet referenced from the HTML body (via a cid: link or Content-Location). This example adds a related style sheet, then removes it by index, printing the count before and after.

Background: Related items live in the message's multipart/related enclosure and are indexed from 0 to NumRelatedItems - 1. Removing one by index is useful when editing a received message — for example stripping a tracking pixel or an unwanted embedded image — while leaving the HTML body and any other related resources in place. To remove them all at once, use DropRelatedItems.

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Tcl


load ./chilkat.dll

#  Demonstrates the DropRelatedItem method, which removes the related item at a given
#  zero-based index.  A related item is typically an embedded image or style sheet
#  referenced from the HTML body.

set email [new_CkEmail]

#  Set an HTML body that references a related style sheet by name (Content-Location).
CkEmail_SetHtmlBody $email "<html><head><link rel=\"stylesheet\" href=\"styles.css\"/></head><body>Styled.</body></html>"

#  Add the related item (becomes index 0).
CkEmail_AddRelatedString2 $email "styles.css" "body { color: navy; }" "utf-8"
puts "NumRelatedItems before = [CkEmail_get_NumRelatedItems $email]"

#  Remove the related item at index 0.
CkEmail_DropRelatedItem $email 0

puts "NumRelatedItems after = [CkEmail_get_NumRelatedItems $email]"

delete_CkEmail $email