Windows System Programming Third Edition

44

CHAPTER 2 USING THE WINDOWS FILE SYSTEM AND CHARACTER I/O

Example: ASCII to Unicode Conversion

Program 2–4 builds on Program 1–3, which used the convenience

function. File copying is familiar by now, so this example also converts a fi le to

Unicode, assuming it is ASCII; there is no test. The program also includes some

error reporting and an option to suppress replacement of an existing file, and it

replaces the final call to

with a new function that performs the ASCII

to Unicode file conversion.

This program is concerned mostly with ensuring that the conversion can take

place successfully. The operation is captured in a single function call