Path: utzoo!attcan!uunet!super!udel!gatech!cwjcc!hal!ncoast!jamiep
From: jamiep@ncoast.UUCP (Jamie Purdon)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Finding The Workbench Screen
Summary: Find WBench? Follow Screen list & check bits
Message-ID: <13231@ncoast.UUCP>
Date: 10 Dec 88 14:43:34 GMT
References: <1982@van-bc.UUCP> <7796@well.UUCP>
Reply-To: jamiep@ncoast.UUCP (Jamie Purdon)
Organization: Cleveland Public Access UN*X, Cleveland, Oh
Lines: 18
Sender:




Any screen with the "WBENCHSCREEN" bit set in the screen structure
is a "workbench" screen.  This is the way "multiple wbench screen"
hacks work.  So, so far as checking this bit, you were correct.
 
However, the 'screen list' does not start at YOUR screen.  If there
are screens behind yours then, yes, the 1st longword in your
screen struct will be a link to another screen.  *The* place
to begin scanning the screen structs is at
  IntuitionBase->FirstScreen
 
Unless you're simply checking if you're the "upfront" screen,
you should probably forbid/permit around any "screen structure walking".
 

(finishing DIGIpaint2....;-)