Re: Get Preferred Application Icon URL for a given file

FROM : Mike Abdullah
DATE : Sun Nov 11 18:29:13 2007

On 11 Nov 2007, at 17:11, Rainer Brockerhoff wrote:

> At 08:38 -0800 11/11/2007, <email_removed> wrote:

>> From: JanakiRam <<email_removed>>
>> References: 
>> <<email_removed>>
>>     <<email_removed>>
>> In-Reply-To: <<email_removed>>
>> Date: Sun, 11 Nov 2007 21:39:54 +0530
>> Message-ID: 
>> <<email_removed>>
>>
>> NSWorkSpace is some how getting the preferred application image/
>> icon ,
>> constructing the NSImage object.
>>  Any idea's on how Apple guys did it ?

>
> I believe internally they call GetIconRefFromFileInfo() and then 
> pass the iconRef to the new -[NSImage initWithIconRef:] API.
>
> The iconRef you get from GetIconRefFromFileInfo() may not 
> correspond to a specific image file on disk. Besides what Glenn 
> Andreas already mentioned in a previous reply, if the file has a 
> Finder badge, or is an alias, you get a new composited image which 
> doesn't exist anywhere.
>
> I seem to recall that WebKit supports some new syntax for doing in-
> line images - meaning TIFF data (or whatever) specified inside the 
> <img /> tag - so you may want to investigate that instead.


Exactly, the NSImage does not necessarily have to exist on disk. You 
could either create data: URLs for WebKit to handle or write out the 
image to disk yourself in a temporary location.
>
> --
> Rainer Brockerhoff  <<email_removed>>
> Belo Horizonte, Brazil
> "In the affairs of others even fools are wise
>  In their own business even sages err."
> Weblog: http://www.brockerhoff.net/bb/viewtopic.php
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