Modifier keys

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From: info-mac@uw-beaver (info-mac)
Newsgroups: fa.info-mac
Subject: Modifier keys
Message-ID:
Date: Tue, 21-Aug-84 20:54:17 EDT
Article-I.D.: uw-beaver>.1532
Posted: Tue Aug 21 20:54:17 1984
Date-Received: Thu, 23-Aug-84 00:13:03 EDT
Sender: daemon@uw-beave
Organization: U of Washington Computer Science
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From: Eric Roskos
The keys you mention are called "Modifier Keys." Their status is returned
in the "modifiers" field of the EventRecord, which has bits assigned to each
modifier key as follows:

11 - option key
10 - caps lock key
9 - shift key
8 - command key
7 - mouse button

where the bits are numbered in order. However, the modifier keys
don't generate an event when depressed on their own; they are just returned
as part of the event record for another event.

See "The Event Manager: A Programmer's Guide" (/EMGR/EVENTS.3 in the
6/20/83 edition) for a full description.