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Re: NSRecentDocumentRecords - dynamically updating
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Re: NSRecentDocumentRecords - dynamically updating


  • Subject: Re: NSRecentDocumentRecords - dynamically updating
  • From: "James Wettenhall" <email@hidden>
  • Date: Wed, 14 Mar 2007 16:26:14 +1100 (EST)
  • Importance: Normal

Hi Jerry,

Thanks very much for that!  I just tried your SSPathResolveFromAliasData
function in my code and it works perfectly!

>From reading your post, I'm not sure what you want to do.

Sorry about that.  When I first started writing the post, I thought I
would ask specifically how to resolve the NSData objects from the
NSRecentDocumentRecords in the PList file, which is exactly what you have
helped me with.  But then I thought I would be a little bit more open to
other possibilities, in case anyone wanted to suggest a completely
different approach.

Best wishes,
James

  Most of what
>> you
> said will work.  For example, if you want to get a path from that
> "_NSAlias", you just get that -objectForKey, cast it as an NSData and
> resolve the alias.  I've pasted in a function I use to do that; I don't
> know
> maybe this is the same as what you've already found...
>
> Jerry Krinock
>
> NSString* SSPathResolveFromAliasData(NSData* data) {
>     NSString* path = nil ;
>     if (data) {
>         if (CFDataGetTypeID() == CFGetTypeID((CFDataRef)data)) {
>             // now convert the CF data back into an alias
>             CFIndex dataSize = CFDataGetLength((CFDataRef)data) ;
>             AliasHandle tAliasHdl = (AliasHandle)NewHandle(dataSize) ;
>             if (tAliasHdl) {
>                 CFDataGetBytes(
>                    (CFDataRef)data,
>                    CFRangeMake(0,dataSize),
>                    (UInt8*)*tAliasHdl) ;
>                 FSRef fsRef;
>                 Boolean wasChanged;
>                 // Try to resolve the alias ...
>                 // The following can delay for several minutes before
> timing
> out
>                 // if the alias is on a volume which is not now mounted.
>                 // There is a related function which aborts if user
>                 // interaction is needed; I haven't tried that
>                 OSErr err = FSResolveAlias(
>                            NULL, tAliasHdl, &fsRef, &wasChanged) ;
>                 char pathC[2048] ;
>                 if (err == noErr) {
>                     err = FSRefMakePath(&fsRef, (UInt8*)pathC,
> sizeof(pathC)) ;
>                 }
>                 if (err == noErr) {
>                     path = [NSString stringWithCString:pathC] ;
>                 }
>             }
>         }
>     }
>
>     return path ;
> }
>
>
>
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References: 
 >Re: NSRecentDocumentRecords - dynamically updating (From: Jerry Krinock <email@hidden>)

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