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Re: PATCH: Use getche on Win32


Eli Zaretskii wrote:
Date: Mon, 9 May 2005 13:15:50 -0700
From: Mark Mitchell <mark@codesourcery.com>
Cc: gdb-patches@sources.redhat.com

Windows console semantics are different from UNIX.  If we just use
"read" to read what the user's typing, we end up blocking until a
newline is available, and even then there are some oddities.  The
easiest thing seems to be to use the special "getche" (short for "get
character with echo") routine which does the right thing.

Reviews?


What happens if you press one of the special keys, like Ctrl-C or the
arrow keys or PageDown?  Does getche still DTRT?

Ctrl-C shows up as code 3, despite the fact that the documentation says that you can't read Ctrl-C. The arrows and such are two-byte sequences; the first byte is 0xE0, while the second byte is a letter. For example, left-arrow is 0xE0 0x50. So, I'm not sure this entirely qualifies as "DTRT", but it's not totally broken either.


--
Mark Mitchell
CodeSourcery, LLC
mark@codesourcery.com
(916) 791-8304


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