Path: utzoo!mnetor!uunet!lll-winken!lll-tis!ames!ll-xn!oberon!pollux.usc.edu!papa
From: papa@pollux.usc.edu (Marco Papa)
Newsgroups: comp.sys.amiga
Subject: Re: calling all gurus
Message-ID: <8190@oberon.USC.EDU>
Date: 7 Apr 88 04:41:49 GMT
References: <8804051628.AA27845@decwrl.dec.com| <3482@ece-csc.UUCP|
Sender: news@oberon.USC.EDU
Reply-To: papa@pollux.usc.edu (Marco Papa)
Organization: Felsina Software, Los Angeles, CA
Lines: 39

In article <3482@ece-csc.UUCP| rss@ece-csc.UUCP (Ralph Scherp) writes:
|In article <8804051628.AA27845@decwrl.dec.com| kruger@16bits.dec.comh writes:
||I am just starting to get involved with machine specifics of the Amiga, and
||also suffer from extreme lack of time. However, the system is screaming for
||a program that will set preferences from a file. ie:
||
||setpref mypreferences
||setpref yourpreferences
|Sure, I've done this.  It's quite simple.  I wanted the same capability
[..deleted stuff]
|The file "devs:system-configuration" is just an exact copy of the 
|"Preferences" structure defined in intuition/intuition.h (I think)
|so all you have to do to reset preferences is:
|
|    open the intuition library
|       IntuitionBase = OpenLibrary("intuition.library",0);
|    open the disk file devs:system-configuration (or your substitute file)
|       fd = open("Devs:System-configuration",O_RDONLY,0);
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|    read the data into a struct Preferences
|       read(fd,&pref,sizeof(pref)); 
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|           (where "pref" is "struct Preference pref")
|    issue a SetPrefs call (this is what makes it all work)
|           SetPrefs(&pref,sizeof(pref),TRUE);
|    close the library & file & exit.

Please don't do that!  What if C-A decides to change the filename or its
location in a future release?  There is an Intuition call that allows you
to do just that in a portable way. It is called GetPrefs:

GetPrefs(&pref, sizeof(pref));

Everything else is OK.

-- Marco
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