How can I use the barcode functionality in text fields? I guess that this is not possible or has somebody a trick?

I set the barcode type in the report field (tiitm001.txta for testing). but it prints only the text, no barcode. If I set a report field of type string with barcode type then it prints correct.

Any ideas?

Hmm, I have not tried, but there is special text handling in the reports, I guess I am not surprised. Try moving the text to a regular string in the before.layout section and printing the string. You can use the text.to.buf command to get the text into a string.