Windows System Programming Third Edition

EXAMPLE: PRINTING AND PROMPTING

39

d etaches a process from its console. Calling

then creates a new one associated with the process’s standa rd input, output, and

error handles.

will fail if the process already has a console; to

avoid this problem, precede the call with

.

Note: Windows GUI a pplications do not have a default console and must

allocate one before using functions such as

or to display

on a console. It’s also possible that server processes may not have a console.

Chapter 6 shows how a process can be crea ted without a console.

There are numerous other console I/O functi ons for specifying cursor position,

screen attributes (such as color), ...