en:docs:fapi:dosselectdisk
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This is part of Family API which allow to create dual-os version of program runs under OS/2 and DOS

Note: This is legacy API call. It is recommended to use 32-bit equivalent

2021/09/17 04:47 · prokushev · 0 Comments
2021/08/20 03:18 · prokushev · 0 Comments

DosSelectDisk

This call selects the drive specified as the default drive for the calling process.

Syntax

DosSelectDisk (DriveNumber)

Parameters

  • DriveNumber (USHORT) - input : New default drive number, where 1 = A and 2 = B and so on.

Return Code

rc (USHORT) - return

Return code descriptions are:

  • 0 NO_ERROR
  • 15 ERROR_INVALID_DRIVE

Example Code

C Binding

  #define INCL_DOSFILEMGR
 
  USHORT  rc = DosSelectDisk(DriveNumber);
  USHORT           DriveNumber;   /* Default drive number */
  USHORT           rc;            /* return code */

MASM Binding

  EXTRN  DosSelectDisk:FAR
  INCL_DOSFILEMGR     EQU 1
 
  PUSH   WORD    DriveNumber   ;Default drive number
  CALL   DosSelectDisk

Returns WORD

Note

Text based on http://www.edm2.com/index.php/DosSelectDisk

Family API
DOS Process Manager DosBeep DosExit DosSleep DosExecPgm
File Manager DosChDir DosChgFilePtr DosClose DosDelete DosDupHandle DosMkDir DosMove DosQCurDir DosQCurDisk DosSetFileMode DosOpen DosQFileInfo DosRead DosQFileMode DosQFSInfo DosQVerify DosRmDir DosSelectDisk DosFindClose DosFindFirst DosFindNext DosSetFileInfo DosSetVerify DosWrite DosFileLocks DosSetFHandState DosNewSize DosBufReset DosQFHandState DosSetFSinfo
Memory Manager DosFreeSeg DosSubAlloc DosSubFree DosSubSet DosAllocHuge DosAllocSeg DosReallocHuge DosReallocSeg DosGetHugeShift DosCreateCSAlias
NLS DosCaseMap DosGetCtryInfo DosGetDBCSEv DosSetCtryCode DosGetCollate DosGetMessage DosInsMessage DosPutMessage
Date and Time DosSetDateTime DosGetDateTime
Devices DosDevConfig DosDevIOCtl DosDevIOCtl2
Signals DosHoldSignal DosSetSigHandler
Misc BadDynLink DosGetEnv DosGetMachineMode DosGetVersion DosError DosErrClass DosSetVec
KBD KbdCharIn KbdFlushBuffer KbdGetStatus KbdSetStatus KbdStringIn KbdPeek
VIO VioGetBuf VioGetConfig VioGetCurPos VioGetCurType VioGetPhysBuf VioReadCellStr VioReadCharStr VioScrollUp VioScrollDn VioScrollLf VioScrollRt VioScrUnLock VioSetCurPos VioSetCurType VioSetMode VioGetMode VioShowBuf VioWrtCellStr VioWrtCharStr VioWrtCharStrAtt VioWrtNAttr VioWrtNCell VioWrtNChar VioWrtTTY VioScrLock VioPopUp
Tools BIND
Modules DOSCALLS.DLL VIOCALLS.DLL KBDCALLS.DLL MSG.DLL
Libraries API.LIB OS2386.LIB FAPI.LIB DOSCALLS.LIB SUBCALLS.LIB
2018/08/25 15:05 · prokushev · 0 Comments