info-mac@uw-beaver (02/08/85)
From: Steven B. Munson <sbm@Purdue.ARPA>
At last! Someone has written a desk accessory that blanks the
screen and works with MacTerminal on a 128K Mac! This one is so small,
it could just as well go out in the mail; it's smaller than this message
describing it (900 BYTES after conversion)! Here is what its creator
says about it:
[ The hcx source is also archived in sleep3.hcx -jma ]
>From: lsr@apple.UUCP (Larry Rosenstein)
>Newsgroups: net.micro.mac
>Subject: Idle Desk Accessory
>Message-ID: <14891@apple.UUCP>
>Date: Sun, 3-Feb-85 18:43:17 EST
>Date-Received: Thu, 7-Feb-85 03:48:53 EST
>Organization: Macintosh Division, Apple Computer
>Lines: 41
>
>I have posted to net.sources.mac a copy of yet another Idle desk accessory.
>The features of this one are:
>
> o erases the whole screen and randomly moves an icon around
> o runs during the host application's idle time (ie., does not take over
> the whole machine)
> o exits when you press the mouse button (so long as the cursor is not in
> the menu bar) or if another window becomes active (ie., if you are in
> the Finder and insert a disk)
> o if you hold down the Option key you can see what used to be on the
> screen (it does not save the bits, however, so it relys on the
> application being able to respond to update events)
>
>If you examine the driver you will find the charaters ICN# followed by a
>word containing 3. This is the resource type and ID of the icon that it
>flashes on the screen. You can edit these to customize your desk
>accessory. (For example, display a different icon depending on what
>application is running. If you do this you would want to install the
>driver in the application itself, including the Finder.) Both ICON and
>ICN# resource types will work. If the resource does not exist a square is
>moved around instead.
>
>Implementation Note:
>
>The DA creates a window the size of the screen. It copies the window's
>portRect into its visRgn before drawing, so that it can draw on top of the
>menu bar. It saves the old menu bar and clears the menus to ensure that
>the user cannot pull down a menu. When you hold down the option key it
>repaints the menu bar and shrinks the window down to 0-size.
>
>You can distribute this freely, as long the credit (blame) is properly
>attributed. Report comments/bugs to me.
>
>Enjoy.
>
>Larry Rosenstein
>{dual, nsc, voder, ios}!apple!lsr
>lsr@Apple.CSNET
I have installed this and extracted it with DAM. I will send the
DAM document to info-mac-request soon, from whence I assume it will be
put in the info-mac directory at sumex.
Steve Munson
sbm@purdue
(This file must be converted with BinHex.
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