commons@Sunburn.Stanford.EDU (Peter Commons) (06/29/91)
The title says it all. I want to store and retrieve data from an application's own data fork. How do you open it/ get a reference number for it? Thanks in advance. -- Peter Commons commons@cs.stanford.edu Computer Science Department, Stanford University
keith@Apple.COM (Keith Rollin) (07/01/91)
In article <1991Jun29.002528.4831@neon.Stanford.EDU> commons@Sunburn.Stanford.EDU (Peter Commons) writes: >The title says it all. I want to store and retrieve data from an application's >own data fork. How do you open it/ get a reference number for it? Well, opening the file gets you the reference number, so that part's easy. Now we just have to figure out how to open it. The idea that immediately occurs to me is to get the application's resource fork refNum by calling CurResFile() at the start of your application. Next, find the location and name of the resource file by calling GetFCBInfo(). That will give you the vRefNum, dirID, and file name that you need to call HOpen(). -- ------------------------------------------------------------------------------ Keith Rollin --- Apple Computer, Inc. INTERNET: keith@apple.com UUCP: {decwrl, hoptoad, nsc, sun, amdahl}!apple!keith "But where the senses fail us, reason must step in." - Galileo
mkelly@Apple.COM (Michael Kelly) (07/01/91)
In article <54493@apple.Apple.COM> keith@Apple.COM (Keith Rollin) writes: >In article <1991Jun29.002528.4831@neon.Stanford.EDU> commons@Sunburn.Stanford.EDU (Peter Commons) writes: >>The title says it all. I want to store and retrieve data from an application's >>own data fork. How do you open it/ get a reference number for it? > >The idea that immediately occurs to me is to get the application's >resource fork refNum by calling CurResFile() at the start of your >application. Next, find the location and name of the resource file by >calling GetFCBInfo(). That will give you the vRefNum, dirID, and file >name that you need to call HOpen(). > Why don't you just call GetAppParms (as documented in IM II, pg. 58). It returns the name of your application, the reference number for the application's resource file, and a handle to some finder information (info about documents that were selected when the application was launched). Mike. -- _____________________________________________________________________________ Michael A. Kelly America Online: Michael792 mkelly@cs.uoregon.edu or mkelly@apple.com Compu$erve: 73567,1651 _____________________________________________________________________________
keith@Apple.COM (Keith Rollin) (07/01/91)
In article <54497@apple.Apple.COM> mkelly@Apple.COM (Michael Kelly) writes: >In article <54493@apple.Apple.COM> keith@Apple.COM (Keith Rollin) writes: >>In article <1991Jun29.002528.4831@neon.Stanford.EDU> commons@Sunburn.Stanford.EDU (Peter Commons) writes: >>>The title says it all. I want to store and retrieve data from an application's >>>own data fork. How do you open it/ get a reference number for it? >> >>The idea that immediately occurs to me is to get the application's >>resource fork refNum by calling CurResFile() at the start of your >>application. Next, find the location and name of the resource file by >>calling GetFCBInfo(). That will give you the vRefNum, dirID, and file >>name that you need to call HOpen(). >> > >Why don't you just call GetAppParms (as documented in IM II, pg. 58). It >returns the name of your application, the reference number for the >application's resource file, and a handle to some finder information (info >about documents that were selected when the application was launched). Right! I _knew_ there was a better way! Do what Mike says, not what I said. I was recently playing around with INITs (which don't get to call GetAppParms), and forgot the correct way of doing things. -- ------------------------------------------------------------------------------ Keith Rollin --- Apple Computer, Inc. INTERNET: keith@apple.com UUCP: {decwrl, hoptoad, nsc, sun, amdahl}!apple!keith "But where the senses fail us, reason must step in." - Galileo