Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!ucbvax!pro-avalon.cts.com!jstich
From: jstich@pro-avalon.cts.com (Jonah Stich)
Newsgroups: comp.sys.apple
Subject: Re: custom icons question
Message-ID: <8906150736.AA01530@crash.cts.com>
Date: 15 Jun 89 03:45:55 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Reply-To: pnet01!pro-simasd!pro-avalon!jstich@nosc.mil
Organization: The Internet
Lines: 37

hartkopf@tramp.Colorado.EDU (Jeff Hartkopf) writes:
>for a DrawIcon icon) now, so if someone would be so kind as to summarize
>for me what it says on page 17-3 of Volume 2, I would be VERY grateful.

Okay, here goes (please excuse any typos, it's kinda late, and this seems to
be a noisy line). Page 17-3, section entitled "QuickDraw II Auxiliary icon
record" reads:

An icon is a small graphic object that is usually symbolic of an operation or
of a larger entity, such as a document. The QuickDraw II Auxiliary icon recore
indicates whether the icon is icolor or black and white, the size of the icon,
the height and width od the icon, the icon image, andthe mosk controlling the
appearance of the icon, as shown in Figure 17-1.

Note: At the time of publication, this record had not been included in the APW
interface file.

Offset  Field
$0 & $1 IconType        Word - Bit 15 set to 1 = color icon
                                      set to 0 = black and white icon
$2 & $3 IconSize        Word - INTEGER; number of bytes in icon image
$4 & $5 IconHeight      Word - INTEGER; height of icon in pixels
$6 & $7 IconWidth       Word - INTEGER; width of icon in pixels
$8 - $x IconImage       x Bytes - Icon image; IconsSize bytes long, each row
                                  of pixels is 1+ (IconWidth - 1)/2 bytes wide
$x - $y IconMask        (Same as above)

That's all there is on 17-3, 17-4 goes on to talk about how the displayMode,
hich controls how the iconMask is applied. Hope this has been of some help.

Jonah

-- jstich@pro-avalon

UUCP: crash!pro-nsfmat!pro-avalon!jstich
ARPA: crash!pro-nsfmat!pro-avalon!jstich@nosc.mil
INET: jstich@pro-avalon.cts.com