>Where I can obtain a font for code of bar that could be stamped on a matrix printer??

A barcode for your specific matrix printer may or may not be bought from the vendor, you have to check it.

Another solution is to print the barcode as graphics from your computer. It will be slow, but it's probably your only alternative. If you want to do this from VFP, check FoxBarcode which is free. http://vfpx.codeplex.com/wikipage?title=FoxBarcode&referringTitle=Home