inserting c/c++ program code into latex/lyx documents

[Parminder Singh]

hi all,
i have been trying to complete my thesis document using lyx. i need to insert c/c++ 
code into my documents. i need some examples as to how this can be accomplished. the c 
program is stored in a file and i would like to include a major part from the file 
into a lyx/latex document. i tried using the "insert code" option from within lyx but 
it does not format my code properly.
any help is greatly appreciated, thanx a lot, 
parminder gupta