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Peeper Notes
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1988-10-22
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22 Oct 88
Peeper DA
version 1.0
by Matt Holiday
Peeper is a very simple DA which allows you to look inside paint
documents without having to start up your favorite paint program.
Future versions may support PICT documents. Peeper allows you to
view a painting but not edit it -- I am not trying to build a
paint-program-in-a-DA, but rather a little utility which lets you
browse the contents of a painting quickly, when you've forgotten
what was in it.
WARNING: Peeper does not work correctly when opened within some
paint programs (so far, FullPaint and SuperPaint, that I know of)
because of unfriendly things that these programs do to the screen.
In particular, it will bomb or hang up in FullPaint.
Peeper reads MacPaint documents (and paint files from compatible
programs like FullPaint or SuperPaint). It also opens paint-type
startup screens. The startup screens must have the file type set
to 'SCRN', the way that SuperPaint makes them, and have a file
length of exactly 21,888 bytes (a 512 by 342 pixel bitmap).
When you select it from the Apple menu, Peeper puts up an Open
File dialog, showing all documents with a file type of 'PNTG' or
'SCRN'. The Cancel item has been replaced by Quit. Peeper uses
the first available SFGetFile 'DLOG' resource, so it may have
extra application-specific buttons which you should ignore.
The DA window will open with the name of the painting (or start-
up screen), and the cursor will change to the "hand" tool when-
ever it is over this window. Holding down the mouse allows you
to scroll the painting within the window. Note that the image
will "pin" when you have scrolled all the way to one side or an-
other. Clicking on the close box will close both the window and
the DA.
Peeper requires a good chunk of memory -- 51K for the bitmap in
memory, and a buffer as big as the MacPaint file in which to un-
pack the bits (typically 15K to 20K). A startup screen will
only require 21K for the bitmap (it isn't packed, so no buffer
is required).
Peeper should be compatible with all Mac and all ROMS. I have
tested Peeper with both System 4.2 and System 6.0 on a Mac Plus
and on a Mac II, with and without color. Other than the above-
noted incompatibilities with FullPaint and SuperPaint, I think
it's pretty solid -- if you find a bug, please let me know! My
Compuserve address is [73120,2400].
Peeper is absolutely free. You may distribute it, but only for
free, and you must include this note. Peeper is © 1988 by Matt
Holiday in its entirety, and all rights are reserved.
Happy peeping!