Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!snorkelwacker!apple!xanadu!bob
From: bob@xanadu.com (Bob Schumaker -- "Software-in-a-bucket")
Newsgroups: comp.sys.mac.programmer
Subject: Re: Two (2) weenie C questions...
Summary: Check for keys in both MPW and THINK C
Keywords: Keymaps
Message-ID: <1990Aug30.235321.13449@xanadu.com>
Date: 30 Aug 90 23:53:21 GMT
References: <1990Aug29.202759.293@midway.uchicago.edu>
Sender: sun!markets!bob
Organization: The AMIX Corporation, Palo Alto, CA
Lines: 33

> 1) How does one determine if a key is down using KeyMap?  It's simple in
> Pascal: an array of booleans, but in the C interfaces it's declared as

Boolean CheckKey (map, key)
    KeyMap *map;
    int key;
{
    long i = (1 << (31 - (key % 32)));
#ifdef applec /* or AppleC in MPW 3.2 :-( don't ask me why! */
    return (*map[key/32] & i);
#else
    return (map->Key[key / 32] & i);
#endif
}

------------------------------------------------------------------------
This life is a test.  It is only a test.  Had this been a real life, you
           would have been told where to go and what to do.
------------------------------------------------------------------------
Bob Schumaker      The AMIX Corporation
                   2345 Yale, Palo Alto, CA 94306
Addresses: bob@amix.com
	   uunet!markets!amix!bob
	   amix.com!bob@uunet.uu.net
	   sun!xanadu!amix!bob

Any opinions expressed herein probably *are* the opinions of my employer.
------------------------------------------------------------------------
-- 
------------------------------------------------------------------------
This life is a test.  It is only a test.  Had this been a real life, you
           would have been told where to go and what to do.
------------------------------------------------------------------------