my C program deals with single byte characters but now i want to fetch multibyte data stored in the datbase so what all changes i need to make to the code so that it handles multibyte data as well.

i know about wide characters and convertion from wide to multibyte.but m not sure of where to start from.
what all header files to include?
do i need to change locale type or include some codepage and if yes how to do all these?...

my C program deals with single byte characters but now i want to fetch multibyte data stored in the datbase so what all changes i need to make to the code so that it handles multibyte data as well.

i know about wide characters and convertion from wide to multibyte.but m not sure of where to start from.
what all header files to include?
do i need to change locale type or include some codepage and if yes how to do all...

LIB file dat is created during build process of VS,is the only LIB file in VS or we do have other types of LIB filse also.....
to create a lib file what files one need?
actually i only have a LIB file named "yyy",to make changes in this file do i need to change yyy.cpp n compile it to get a changed LIB file.