Source:NetHack 3.6.0/include/def os2.h

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 /* NetHack 3.6	def_os2.h	$NHDT-Date: 1432512782 2015/05/25 00:13:02 $  $NHDT-Branch: master $:$NHDT-Revision: 1.8 $ */
 /* Copyright (c) Timo Hakulinen, 1990, 1991, 1992, 1993.	  */
 /* NetHack may be freely redistributed.  See license for details. */
 
 /*
  *	Only a small portion of all OS/2 defines are needed, so the
  *	actual include files often need not be used.  In fact,
  *	including the full headers may stall the compile in DOS.
  */
 
 #ifdef OS2_USESYSHEADERS
 
 #define INCL_NOPMAPI
 #define INCL_DOSFILEMGR
 #define INCL_DOS
 #define INCL_SUB
 
 #include <os2.h>
 
 #else
 
 typedef char CHAR;
 typedef void VOID;
 
 typedef unsigned char UCHAR;
 typedef unsigned short USHORT;
 typedef unsigned int UINT;
 typedef unsigned long ULONG;
 typedef unsigned char BYTE;
 
 #ifdef OS2_32BITAPI
 
 typedef unsigned long SHANDLE;
 typedef USHORT HKBD;
 typedef USHORT HVIO;
 
 #define CCHMAXPATHCOMP 256
 
 #ifdef OS2_CSET2
 #define API16 _Far16 _Pascal
 #define DAT16
 #define API32 _System
 #define KbdGetStatus KBD16GETSTATUS
 #define KbdSetStatus KBD16SETSTATUS
 #define KbdCharIn KBD16CHARIN
 #define KbdPeek KBD16PEEK
 #define VioGetMode VIO16GETMODE
 #define VioSetCurPos VIO16SETCURPOS
 #else
 #define API16
 #define DAT16
 #define API32
 #endif
 
 #define DAT
 
 #else /* OS2_32BITAPI */
 
 typedef unsigned short SHANDLE;
 typedef SHANDLE HKBD;
 typedef SHANDLE HVIO;
 
 #define CCHMAXPATHCOMP 13
 
 #ifdef OS2_MSC
 #define API16 pascal far
 #define DAT16
 #endif
 
 #define DAT DAT16
 
 #endif /* OS2_32BITAPI */
 
 typedef USHORT *DAT16 PUSHORT;
 typedef BYTE *DAT16 PBYTE;
 typedef ULONG *DAT PULONG;
 typedef VOID *DAT PVOID;
 
 typedef SHANDLE HDIR;
 typedef HDIR *DAT PHDIR;
 
 typedef char *DAT16 PCH;
 typedef char *DAT PSZ;
 
 /* all supported compilers understand this */
 
 #pragma pack(2)
 
 typedef struct {
     UCHAR chChar;
     UCHAR chScan;
     UCHAR fbStatus;
     UCHAR bNlsShift;
     USHORT fsState;
     ULONG time;
 } KBDKEYINFO;
 
 typedef KBDKEYINFO *DAT16 PKBDKEYINFO;
 
 /* File time and date types */
 
 typedef struct {
     UINT twosecs : 5;
     UINT minutes : 6;
     UINT hours : 5;
 } FTIME;
 
 typedef struct {
     UINT day : 5;
     UINT month : 4;
     UINT year : 7;
 } FDATE;
 
 #ifdef OS2_32BITAPI
 
 typedef struct {
     ULONG oNextEntryOffset;
     FDATE fdateCreation;
     FTIME ftimeCreation;
     FDATE fdateLastAccess;
     FTIME ftimeLastAccess;
     FDATE fdateLastWrite;
     FTIME ftimeLastWrite;
     ULONG cbFile;
     ULONG cbFileAlloc;
     ULONG attrFile;
     UCHAR cchName;
     CHAR achName[CCHMAXPATHCOMP];
 } FILEFINDBUF3;
 
 #else
 
 typedef struct {
     FDATE fdateCreation;
     FTIME ftimeCreation;
     FDATE fdateLastAccess;
     FTIME ftimeLastAccess;
     FDATE fdateLastWrite;
     FTIME ftimeLastWrite;
     ULONG cbFile;
     ULONG cbFileAlloc;
     USHORT attrFile;
     UCHAR cchName;
     CHAR achName[CCHMAXPATHCOMP];
 } FILEFINDBUF;
 
 typedef FILEFINDBUF *DAT16 PFILEFINDBUF;
 
 #endif /* OS2_32BITAPI */
 
 typedef struct {
     ULONG idFileSystem;
     ULONG cSectorUnit;
     ULONG cUnit;
     ULONG cUnitAvail;
     USHORT cbSector;
 } FSALLOCATE;
 
 typedef struct {
     USHORT cb;
     USHORT fsMask;
     USHORT chTurnAround;
     USHORT fsInterim;
     USHORT fsState;
 } KBDINFO;
 
 typedef KBDINFO *DAT16 PKBDINFO;
 
 typedef struct {
     USHORT cb;
     UCHAR fbType;
     UCHAR color;
     USHORT col;
     USHORT row;
     USHORT hres;
     USHORT vres;
     UCHAR fmt_ID;
     UCHAR attrib;
     ULONG buf_addr;
     ULONG buf_length;
     ULONG full_length;
     ULONG partial_length;
     PCH ext_data_addr;
 } VIOMODEINFO;
 
 typedef VIOMODEINFO *DAT16 PVIOMODEINFO;
 
 #pragma pack()
 
 /* OS2 API functions */
 
 USHORT API16 KbdGetStatus(PKBDINFO, HKBD);
 USHORT API16 KbdSetStatus(PKBDINFO, HKBD);
 USHORT API16 KbdCharIn(PKBDKEYINFO, USHORT, HKBD);
 USHORT API16 KbdPeek(PKBDKEYINFO, HKBD);
 
 USHORT API16 VioGetMode(PVIOMODEINFO, HVIO);
 USHORT API16 VioSetCurPos(USHORT, USHORT, HVIO);
 
 #ifdef OS2_32BITAPI
 ULONG API32 DosQueryFSInfo(ULONG, ULONG, PVOID, ULONG);
 ULONG API32 DosFindFirst(PSZ, PHDIR, ULONG, PVOID, ULONG, PULONG, ULONG);
 ULONG API32 DosFindNext(HDIR, PVOID, ULONG, PULONG);
 ULONG API32 DosSetDefaultDisk(ULONG);
 #else
 USHORT API16 DosQFSInfo(USHORT, USHORT, PBYTE, USHORT);
 USHORT API16
 DosFindFirst(PSZ, PHDIR, USHORT, PFILEFINDBUF, USHORT, PUSHORT, ULONG);
 USHORT API16 DosFindNext(HDIR, PFILEFINDBUF, USHORT, PUSHORT);
 USHORT API16 DosSelectDisk(USHORT);
 #endif /* OS2_32BITAPI */
 
 #endif /* OS2_USESYSHEADERS */