Re: Validating Image File Drag and Drops
Re: Validating Image File Drag and Drops
- Subject: Re: Validating Image File Drag and Drops
- From: Colin Cornaby <email@hidden>
- Date: Tue, 10 Apr 2007 19:20:29 -0700
On Apr 10, 2007, at 7:06 PM, Scott Anguish wrote:
On Apr 10, 2007, at 9:58 PM, Colin Cornaby wrote:
I have a table view and I want to allow users to drag image files
into the table. Someone suggested that I could use UTI's to
validate that the file dragged onto my table view is an image
file. I'm having a few issues though. I can't find the methodology
for validating a file against a UTI. I know I could probably
implement my own UTI checker by getting the file extension of the
file, and iterating through all the file types and checking if any
of them list that file extension as one of their types. It seems
to me there must be a better way though. For one thing, this
method wouldn't work for validating files that use creator codes
instead of extensions.
Has anyone used UTI's with drag and drop in Cocoa? Documentation
is sparse on the UTI API's, and even Google doesn't find much.
have a look at this
http://developer.apple.com/documentation/Carbon/Conceptual/
understanding_utis/index.html?http://developer.apple.com/
documentation/Carbon/Conceptual/understanding_utis/
understand_utis_conc/chapter_2_section_3.html#//apple_ref/doc/uid/
TP40001319-CH202-DontLinkElementID_12
specifically the getting a type from a file extension and the
conforms to routines.
Thanks, after looking up UTTypeCreatePreferredIdentifierForTag on
Google, I ran across this page which has the exact answer to my
question:
http://www.cocoadev.com/index.pl?GetUTIForFileAtPath
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