UNICODE_STRING

The UNICODE_STRING structure is used to define Unicode strings.

typedef struct _UNICODE_STRING {
  USHORT  Length;
  USHORT  MaximumLength;
  PWSTR  Buffer;
} UNICODE_STRING *PUNICODE_STRING;

Members

Length

The length in bytes of the string stored in Buffer.

MaximumLength

The maximum length in bytes of Buffer.

Buffer

Pointer to a buffer used to contain a string of wide characters.

Headers

Defined in ntdef.h. Include wdm.h or ntddk.h.

Comments

The UNICODE_STRING structure is used to pass Unicode strings. Use RtlInitUnicodeString to initialize a UNICODE_STRING.

If the string is NULL-terminated, Length does not include the trailing NULL.

The MaximumLength is used to indicate the length of Buffer so that if the string is passed to a conversion routine such as RtlAnsiStringToUnicodeString the returned string does not exceed the buffer size.

See Also

OEM_STRING, ANSI_STRING, RtlAnsiStringToUnicodeSize, RtlAnsiStringToUnicodeString, RtlFreeUnicodeString, RtlInitUnicodeString, RtlUnicodeStringToAnsiSize, RtlUnicodeStringToAnsiString