Re: Symbolic links, alias files and related stuff
Re: Symbolic links, alias files and related stuff
- Subject: Re: Symbolic links, alias files and related stuff
- From: Brian Webster <email@hidden>
- Date: Thu, 11 Apr 2002 16:50:03 -0500
On Thursday, April 11, 2002, at 02:22 PM, Andreas Schwarz wrote:
Hmm, I just did a little test and LSCopyDisplayNameForRef()
seems to be twice as slow as [[NSFileManager defaultManager]
displayNameForPath:]. Maybe it's using something else?
How does LSCopyDisplayNameForURL() fare? Is it any faster?
Oh, hell no. I just did a lot of testing of all the LS
functions I use a lot, and it seems the FSRef ones are on
average 4 times as fast as the URL ones.
I guess that makes sense, since the FSRef theoretically contains
the unique HFS+ file ID for the file, where as the URL needs to
be parsed and all the subfolders traversed to find the actual
file. Of course, NSFileManager has to do the same thing with
the path, and it's not so slow. I wonder if it uses the LS*
functions at all, or if it accesses the information directly.
I think the Finder's a little schizo. :)
Seems like it ;-). Is there any way I can specify names for
the new files myself? Or perhaps get a hold of the newly
created file (AppleEvents can return stuff, I know, but I have
no idea how or what to do) and rename it afterwards?
There's another parameter you can pass in, the "with properties"
parameter in Applescript, where you can pass in a record with
values for various properties of the item, including its name.
So, you'll want to:
1. Create a record descriptor. You do this by using
AECreateList() and passing true to the isRecord argument.
2. Create a descriptor for the name. You'll probably want to
make it of typeUnicodeText and pass in a buffer of unichars for
the data.
3. Use AEPutKeyDesc() to put the name descriptor into the
record under the keyword pName.
4. Set the record as the keyAEPropData parameter of the Apple event.
You can add any other properties you might like to set in the
record as well. AERegistry.h and FinderRegistry.h have the
codes for the keywords to use.
--
Brian Webster
email@hidden
http://homepage.mac.com/bwebster
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