NetNews Usenet Archive 1992 #19/NN_1992_19.iso/spool/comp/sys/mac/programm/14844

Text File | 1992-09-01 | 1.7 KB | 30 lines

Newsgroups: comp.sys.mac.programmer
Path: sparky!uunet!gatech!darwin.sura.net!convex!news.utdallas.edu!corpgate!bnrgate!nrcnet0!cunews!torn!csd.unb.ca!morgan.ucs.mun.ca!nstn.ns.ca!dragon.acadiau.ca!881571s
From: [e-mail] (Arnold Spence)
Subject: MacApp(Think Pascal) DoIdle question.
Message-ID: <[e-mail]>
Organization: Acadia University
Date: Tue, 1 Sep 1992 17:48:35 GMT
Lines: 20

I am using MacApp 2.0 with Think Pascal 4.0. I am working on a program to
move pict resources around in a window. I tried using TPicture and managed to
get one picture moving around but I would like to have more than one. When I
create the view layout with view edit I can only specify one pict as the
target and therefore only one receives its DoIdle method. Is there and easy
way to get all of them to receive DoIdle? Another way to do it I figure is to
use the windows list of picture objects and send them their move methods
directly. This is giving me problems however because I can't seem to get
TList.Each to work. (basically I don't know how to call it, can anyone give
me an example of the syntax required to use it?). Also I find that when I
used DoIdle to animate one picture it didn't move very fast (I have a MacIIfx).
Would there be a better way to implement a procedure that needs to be called
as frequently as possible? The animation stopped noticably following a keypress
or mouse click and sometimes because of some unseen system activity. If anyone
is experienced in this type of programming please let me know if I'm on the
right track. Thank you for your time...

if end_of_message then
writeln('Arnold B. Spence : [e-mail]');