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From: hsgj@batcomputer.UUCP
Newsgroups: comp.sys.amiga
Subject: Assigned names and system requesters
Message-ID: <108@batcomputer.tn.cornell.edu>
Date: Thu, 5-Feb-87 02:40:38 EST
Article-I.D.: batcompu.108
Posted: Thu Feb  5 02:40:38 1987
Date-Received: Sat, 7-Feb-87 16:58:34 EST
Organization: Theory Center, Cornell U., Ithaca NY
Lines: 46
Keywords: ASSIGN

[]
	Is there any way to turn off the system requester that is
displayed when one attempts to access a 'disk' that is not mounted?
I have a helpfile displayer.  By default, the help files it should
display are located in the current directory.  However, I thought it
would be 'user friendly' if the user could ASSIGN HELP: my/help/dir
so that he/she could locate the help files anywhere.  Unfortunately,
when I test to see if HELP: has been defined, if it *hasn't* been
defined, an 'Insert HELP disk' system requester appears.  This
is not good...
	The real question, I guess, is whether it is possible to
check for an ASSIGNed name without attempting to access the file
system via that name.
	Any replies on this will be appreciated.  The enclosed fragment
should make this dilemma clear.

--------------------------- start code fragment ----------------------

#define	HELPDIR		"HELP:"

openfile(filename)
char	*filename;
{
	long	templock;
	char	helpfile[64];

	/* create helpfile name */
	if ((templock = Lock(HELPDIR,ACCESS_READ)) == 0)
		strcpy(helpfile,filename);
	else {
		UnLock(templock);
		strcpy(helpfile,HELPDIR);
		strcat(helpfile,filename);
	}

	/* open and display helpfile */
	/* [...] */
}

--------------------------- end code fragment ----------------------

-- Dan Green

-- 
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