bnewton@npiatl.uucp (B) (08/11/90)
Has anyone noticed that the Desktop Manager isn't totally transparent? I have been trying to write a program that copies files from one drive to another in a certain order (to duplicate the file IDs), and several of the file manager calls don't work properly with the Desktop Manager activated. I have to use the Manager since I am working with some 10000 files and a normal Desktop resource file can only hold about 2700. I have noticed that the PBCatMove call fails entirely, and most of the other PB--Cat-- calls have some problems. Am I missing something? If so, any help would be greatly appreciated. Barry E Newton -- npiatl.UUCP!bnewton@gatech.EDU
keith@Apple.COM (Keith Rollin) (08/13/90)
In article <1990Aug10.181605.1170@npiatl.uucp> bnewton@npiatl.uucp (B) writes: >Has anyone noticed that the Desktop Manager isn't totally transparent? I have >been trying to write a program that copies files from one drive to another in >a certain order (to duplicate the file IDs), and several of the file manager >calls don't work properly with the Desktop Manager activated. > >I have to use the Manager since I am working with some 10000 files and a >normal Desktop resource file can only hold about 2700. I have noticed that >the PBCatMove call fails entirely, and most of the other PB--Cat-- calls >have some problems. > >Am I missing something? If so, any help would be greatly appreciated. I think that there might be a little misconception here. The current Desktop file doesn't limit you to 2700 files. It's perfectly OK to have over 10,000 files on a volume. Rather, the problem is that you can't have more than 2,727 resources in the resource fork. Any application that supports custom icons for itself and its documents will require a number of entries in the resource fork of the desktop file. The number of entries can range from zero (for an application with no custom icons), to 2 or 3 (for an application with a custom application icon), up to 10 or 15 or so (for an application that supports many different document types, each with its own icon). For more information, see Macintosh Technote #210. As examples, my 160 meg drive (with all my applications) has 948 entries in the Desktop file, my 80 meg drive (with all the wonderful hacks, INITs, DA's, etc., I've collected over the years), has 428 entries, and my other 80 Meg drive with loads of source code on it has less than 100 entries. I suspect that most of those entries -- especially on my third volume -- are obsolete (i.e., they correspond to files that no longer exists on any of my volumes). -- ------------------------------------------------------------------------------ Keith Rollin --- Apple Computer, Inc. --- Developer Technical Support INTERNET: keith@apple.com UUCP: {decwrl, hoptoad, nsc, sun, amdahl}!apple!keith "Argue for your Apple, and sure enough, it's yours" - Keith Rollin, Contusions