If it didn't work then you did it wrong. Show us what you did so we can see what you did wrong. I'm not interested in downloading a code file when there's no need. Post the relevant code directly.

Do you want to draw on just the Label's or do you want to draw on their parent too? Are all the Labels directly on the form or are some or all of them in some other container? Are there any Labels you don't want to draw on in the same container?