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NSOpenPanel shouldShowFilename delegate, or how to display a list of applications

Dear All,

This throws up a open panel that selects only applications:

[openPanel
runModalForDirectory: nil
file: nil
types: [NSArray arrayWithObjects: @"app", NSFileTypeForHFSTypeCode
('APPL'), nil]]

Nice and dandy. But I want to limit these to those apps that can open a
certain type of file, so presumably I set the open panel's delegate and
handle the panel:shouldShowFilename: message.

Unfortunately I'm a little stuck...

1. The delegate gets this message for all files and directories.
2. How do I tell whether a particular filename is a regular directory
or .app bundle?
3. If I can figure out #2, then I suppose I could use LSCanURLAcceptURL
to determine whether the app accepts the file. I can make the required
CFURLRefs using CFURLCreateWithFileSystemPath, but this function wants
me to tell it whether the file path is really a directory?



Cheers, Glen Low


---
pixelglow software | simply brilliant stuff
www.pixelglow.com
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