Path: utzoo!attcan!uunet!husc6!endor!siegel
From: siegel@endor.harvard.edu (Rich Siegel)
Newsgroups: comp.sys.mac.programmer
Subject: Re: SFPGetFile Question
Keywords: accessing vRefNum in dlgHook
Message-ID: <937@husc6.harvard.edu>
Date: 8 Jan 89 19:00:09 GMT
References: <5959@polya.Stanford.EDU>
Sender: news@husc6.harvard.edu
Reply-To: siegel@endor.UUCP (Rich Siegel)
Organization: Symantec/THINK Technologies, Bedford, MA
Lines: 33

In article <5959@polya.Stanford.EDU> chao@polya.Stanford.EDU (Chih-Chao Lam) writes:
>I am using my own dlgHook in a SFPGetFile call.  I need to access the
>vRefNum of the current file being selected in the Standard Open File
>Dialog box.  I know it's file name from sfReply.fname but 
>sfReply.vRefNum doesn't seem to be giving me the right information.

	When your dialog hook gets called the name and file type of
the file selected are stuffed into the reply record. However, to get
the vRefNum (or WDRefNum), you need to look at two low-memory globals:
SFSaveDisk and CurDirStore.  SFSaveDisk contains the NEGATIVE of the vRefNum
of the volume being displayed, and CurDirStore contains the dirID of the
directory being displayed. You can use these two values to open a working
directory, if you need to.

	Another trick, to avoid opening WDs, is for each reply record,
copy -SFSaveDisk into the first word of the reply record (normally occupied
by "good" and "copy"), and copy CurDirStore into the longword occupied
by "vRefNum" and "version". This will give other routines access to the
same information as your hook.


		--Rich


Rich Siegel
Staff Software Developer
THINK Technologies Division, Symantec Corp.
Internet: siegel@endor.harvard.edu
UUCP: ..harvard!endor!siegel
Phone: (617) 275-4800 x305

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or policies of Symantec Corporation or its employees.