Alternatively you can use barcode fonts. Just write the text in number, it will display as barcode. Easy way.
Which barcode standard you are using. Here is a link for code 39 font
http://www.barcodesinc.com/free-barcode-font/[
^] and here is a link for code 128
http://freebarcodefonts.dobsonsw.com/code128font-download.html[
^].
Verify these fonts before using it. Write the sku, display it in barcode using these fonts. Using a barcode scanner you must need to get your sku back.