Re: Setting iTunes album art with ScriptingBridge

FROM : Bill Monk
DATE : Wed Feb 27 20:20:33 2008

On Feb 27, 2008, Dave Verwe wrote:

> // Add to iTunes
> iTunesApplication *iTunes = [SBApplication 
> applicationWithBundleIdentifier: @"com.apple.iTunes"];
> iTunesTrack *track = [iTunes add: [NSArray arrayWithObject: [NSURL 
> fileURLWithPath: file]] to: nil];
>
> // Convert to PICT
> NSData *tiffData = [artwork TIFFRepresentation];
> NSPasteboard *pboard = [NSPasteboard pasteboardWithName:@"Sample"];
> [pboard declareTypes: [NSArray arrayWithObject: NSTIFFPboardType] 
> owner: nil];
> [pboard setData: tiffData forType: NSTIFFPboardType];
> [pboard types];
> NSData *pictData = [pboard dataForType: NSPICTPboardType];
> [pboard releaseGlobally];
>
> // Add the artwork to the track
> iTunesArtwork *artwork = (iTunesArtwork *)[[SBObject alloc] 
> initWithProperties: [NSDictionary dictionaryWithObjectsAndKeys: 
> @"data", pictData, nil]];
> [[track artworks] insertObject: artwork atIndex: 0];


I haven't delved deeply into Scripting Bridge, but based on something 
similar that occurs when Applescripting iTunes, I suspect the problem 
is in the line:

> [[track artworks] insertObject: artwork atIndex: 0];


A track's "artworks" does not exist for tracks which do not already 
contain artwork. Further, if you try to access it (or "kind of front 
artwork"), certain versions of iTunes will return the classic "Apple 
event not handled" error -1708. Other versions will return 0, as one 
might expect.

In any case, your solution in SB likely involves avoiding "artworks" 
altogether. Basically you want to replicate the Applescript command

set data of front artwork of someTrackReference to somePICTData

Observe that "artworks" is not involved at all. It will only exist 
for the track after some artwork data has been added.


(PS. I think it's preferable to include small code snippets in list 
postings rather as links to some external "snippets" web page. For 
one thing, that page may not exist years from now. For another, 
people who could possibly help with your issue may not bother to 
click your link. I almost didn't.)