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From: rbannon@cosmos.acs.calpoly.edu (Roy Bannon)
Newsgroups: comp.sys.apple
Subject: Re: Speed....
Summary: TaskMasterDA
Message-ID: <1989Oct20.193558.15449@polyslo.CalPoly.EDU>
Date: 20 Oct 89 19:35:58 GMT
References: <8910180053.aa04251@SMOKE.BRL.MIL> <935@friar-taac.UUCP>
Sender: news@polyslo.CalPoly.EDU (News Guru)
Reply-To: rbannon@cosmos.acs.calpoly.edu.UUCP (Roy Bannon)
Organization: Cal Poly State University -- San Luis Obispo
Lines: 30



I am having a little trouble writing an NDA using the taskmaster to track
the controls.  The window is a resource created with two controls, a radio
button and a normal button.  The window is created just fine with a 
newwindow2 call.  I also make sure a save and restore the current res Id
when any of the da routines are run.  The problem is this.  In the action
routine, when the code is 1 (for DAEvent); I call taskmasterda with the
pointer passed to my action routine (params).  Sometimes, it returns with error\
$0E03.  My question is what calls need to be made in what general order to
make taskmasterDA handle my buttons and return the CtrlID of the button that
was hit.

This NDA is supposed to change the desktop, which it does fine. The only problemI have is that sometimes the palettes get screwed up.  The first time the Init
routine is called, is send the message to the message center about the desktop.
It also sends a message that contains the color palette for the picture. The
first thing the DaInit routine does is look for that message about the color
palette.  If it's there then it knows that the message about the desktop has
already been sent and just resets the color palette.  This was done so that 
it isn't always loading the file every time the da is loaded and the init rou
tine is called.  This works fine most of the time.  Some programs (like TML
pascall II, which this is written in) seem to reset the message center, because
the picture is loaded every time.  Also, sometimes after going into prodos 8 and
back, the message s still in the desk center, but the palette is screwed up.
How long due messages stay in the center?  If there is a problem with the
above algorithm, what is it?  Any and all help appreciated.

Roy
rbannon@cosmos.acs.calpoly.edu