reactos/sdk/include/ddk/ntnls.h

#ifndef _NTNLS_
#define _NTNLS_

#ifdef __cplusplus
extern "C" {
#endif

#define MAXIMUM_LEADBYTES 12

/* Some documentation can be found here: http://www.ping.uio.no/~ovehk/nls/ */
typedef struct _CPTABLEINFO {
  USHORT CodePage;
  USHORT MaximumCharacterSize;       /* 1 = SBCS, 2 = DBCS */
  USHORT DefaultChar;                /* Default MultiByte Character for the CP->Unicode conversion */
  USHORT UniDefaultChar;             /* Default Unicode Character for the CP->Unicode conversion */
  USHORT TransDefaultChar;           /* Default MultiByte Character for the Unicode->CP conversion */
  USHORT TransUniDefaultChar;        /* Default Unicode Character for the Unicode->CP conversion */
  USHORT DBCSCodePage;
  UCHAR LeadByte[MAXIMUM_LEADBYTES];
  PUSHORT MultiByteTable;             /* Table for CP->Unicode conversion */
  PVOID WideCharTable;                /* Table for Unicode->CP conversion */
  PUSHORT DBCSRanges;
  PUSHORT DBCSOffsets;
} CPTABLEINFO, *PCPTABLEINFO;

typedef struct _NLSTABLEINFO {
  CPTABLEINFO OemTableInfo;
  CPTABLEINFO AnsiTableInfo;
  PUSHORT UpperCaseTable;
  PUSHORT LowerCaseTable;
} NLSTABLEINFO, *PNLSTABLEINFO;

#ifdef __cplusplus
}
#endif

#endif /* _NTNLS_ */