jim@b-mrda.UUCP (Jim Sadler) (11/30/88)
Where do I find the information to have a program find the system folder that is currently active, when the system folder is on a diffent volume than the application. I want to do this using MPW C. Any info would be appreciated. Thanks jim sadler 206-234-5422 hpubvwa!b-mrda!jim P.O. Box 3707 MS 6R-24 Seattle, Wa. USA 98124 Any opinions expressed are mine and mine only and not that of my employer. Also add in whatever else should be said at this point.
drc@claris.com (Dennis Cohen) (12/02/88)
In article <7800002@b-mrda.UUCP>, jim@b-mrda.UUCP (Jim Sadler) writes: > > Where do I find the information to have a program find the system folder that > is currently active, when the system folder is on a diffent volume than the > application. I want to do this using MPW C. Any info would be appreciated. > You can get the information you need from the SysEnvRec (the sysVRefNum field). It contains the wdRefnum of the currently active system folder. Dennis Cohen Claris Corp. ------------ Disclaimer: Any opinions expressed above are _MINE_!
han@Apple.COM (Byron Han, Architect) (12/02/88)
In article <7800002@b-mrda.UUCP> jim@b-mrda.UUCP (Jim Sadler) writes: > >Where do I find the information to have a program find the system folder that >is currently active, when the system folder is on a diffent volume than the >application. I want to do this using MPW C. Any info would be appreciated. > Technical Note 67. "Finding the <<BlessedFolder>>" FUNCTION GetBlessed(vRefNum: INTEGER; VAR blessed: LONGINT): OSErr; VAR myHPB: HParamBlockRec; error: OSErr; BEGIN blessed := 0; WITH myHPB DO BEGIN ioNamePtr := NIL; ioVRefNum := vRefNum; ioVolIndex := 0; error := PBHGetVInfo(@myHPB, FALSE); IF error = noErr THEN blessed := ioVFndrInfo[1]; END; {with} GetBlessed := error; END; It is easy to convert to MPW C. Please check the tecnical note for to see if I made any typos. +-----------------------------------------------------------------------------+ | Disclaimer: Apple has no connection with my postings. | +-----------------------------------------------------------------------------+ Byron Han, Communications Architect Macintosh xxx: The Next Generation... Apple Computer, Inc. ------------------------------------- 20525 Mariani Ave, MS27Y Internet: han@apple.COM Cupertino, CA 95014 UUCP:{sun,voder,nsc,decwrl}!apple!han -------------------------------------- GENIE: BYRONHAN ATTnet: 408-974-6450 Applelink: HAN1 CompuServe: 72167,1664 ------------------------------------------------------------------------------
dgold@Apple.COM (David Goldsmith) (12/03/88)
In article <21532@apple.Apple.COM> han@Apple.COM (Byron Han, Architect) writes: >In article <7800002@b-mrda.UUCP> jim@b-mrda.UUCP (Jim Sadler) writes: >> >>Where do I find the information to have a program find the system folder that >>is currently active, when the system folder is on a diffent volume than the >>application. I want to do this using MPW C. Any info would be appreciated. >> >Technical Note 67. "Finding the <<BlessedFolder>>" > This is no longer the preferred way to find the system folder. Call SysEnvirons instead; the wdRefNum of the system folder will be returned as part of the information. -- David Goldsmith Apple Computer, Inc. AppleLink: GOLDSMITH1 BIX: dgoldsmith 20525 Mariani Avenue, MS: 46B UUCP: {nsc,dual,sun,voder,ucbvax!mtxinu}!apple!dgold Cupertino, CA 95014 CSNET: dgold@apple.com
leonardr@uxe.cso.uiuc.edu (12/03/88)
>In article <7800002@b-mrda.UUCP>, jim@b-mrda.UUCP (Jim Sadler) writes: >> >> Where do I find the information to have a program find the system folder that >> is currently active, when the system folder is on a diffent volume than the >> application. I want to do this using MPW C. Any info would be appreciated. >> > >You can get the information you need from the SysEnvRec (the sysVRefNum >field). It contains the wdRefnum of the currently active system folder. > Just to clarify what Dennis said...You should call SysEnvirons which will return to you a SysEnvRec. One of the fields of the SysEnvRec is sysVRefNum which contains that wdRefnum of the current System Folder (blessed folder). Code wise (in C) this looks like: myOSErr = SysEnvirons(version, &myEnvirons); sysVRef = myEnvirons.sysVRefNum; (version is an integer (short) which defines what version of SysEnvirons you want (currently highest version is 2)) +---------------------------------+-----------------------------------+ + + Any thing I say may be taken as + + Leonard Rosenthol + fact, then again you might decide+ + President, LazerWare, inc. + that it really isn't, so you + + + never know, do you?? + + leonardr@uxe.cso.uiuc.edu + + + GEnie: MACgician + MacNET: MACgician + + Delphi: MACgician + AppleLink: D0025 + + + + +---------------------------------+-----------------------------------+
holland@m2.csc.ti.com (Fred Hollander) (12/05/88)
In article <21532@apple.Apple.COM> han@Apple.COM (Byron Han, Architect) writes: >In article <7800002@b-mrda.UUCP> jim@b-mrda.UUCP (Jim Sadler) writes: >> >>Where do I find the information to have a program find the system folder that >>is currently active, when the system folder is on a diffent volume than the >>application. I want to do this using MPW C. Any info would be appreciated. >> >Technical Note 67. "Finding the <<BlessedFolder>>" > >FUNCTION GetBlessed(vRefNum: INTEGER; VAR blessed: LONGINT): OSErr; [function deleted] TN 67 also says that this method is used for finding the blessed folder on arbitrary volumes. To be sure to get the blessed folder for the currently active system, use SysEnvirons. Fred Hollander Computer Science Center Texas Instruments, Inc. holland%ti-csl@csnet-rela The above statements are my own and not representative of Texas Instruments.