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NSHFSTypeCodeFromFileType() == 0?
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NSHFSTypeCodeFromFileType() == 0?


  • Subject: NSHFSTypeCodeFromFileType() == 0?
  • From: Randall Meadows <email@hidden>
  • Date: Tue, 24 Feb 2004 11:36:24 -0500

OK, so now that I've been enlightened as to how HFS file types are handled by Cocoa, I've tried to do The Right Thing and be consistent in how I'm using them, by incorporating the functions in NSHFSFileTypes.h.

Problem: "OSType NSHFSTypeCodeFromFileType(NSString *fileTypeString);" always returns 0 (zero). I've tried feeding it several different values in several different way, and always get the same result: 0 (zero).

OSType creator = NSHFSTypeCodeFromFileType([NSString stringWithString:@"asdf"]);
OSType creator = NSHFSTypeCodeFromFileType(@"asdf");
NSString *type = @"asdf";
OSType creator = NSHFSTypeCodeFromFileType(type);

In all cases, creator = 0 (zero).

Code that I had working yesterday broke when I changed

NSString *type = NSFileTypeForHFSTypeCode('asdf');

to

NSString * type = NSFileTypeForHFSTypeCode(NSHFSTypeCodeFromFileType(fileType));

where "fileType" was declared as

NSString *fileType = @"asdf";

during some code cleanup. This also fails in other places where I have something like:

FourCharCode appSig = NSHFSTypeCodeFromFileType(toolSig);

Bug? Or am I a bonehead?
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