code page conversion

["Boncek, John" <jmb Hunter COM>]

I have a large collection of strings encoded in various MS-Windows code
pages.  I need to convert these to UTF-8 for display in a Linux port of an
existing application.  What is the best way to do this?  Apparently the
g_convert function can do it, but you have to specify the code page
(character set) for both input and output as character strings and I can't
find out anywhere how to specify those character strings.  Thanks for your
attention.

John Boncek