// ntifs.h

void FsRtlIsLeadDbcsCharacter(
  DBCS_CHAR
);
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Windows Driver Kit DDI reference (nf-ntifs-fsrtlisleaddbcscharacter)

FsRtlIsLeadDbcsCharacter macro

Description

The FsRtlIsLeadDbcsCharacter macro determines whether a character is a lead byte (the first byte of a character) in a double-byte character set (DBCS).

Parameters

`DBCS_CHAR`

The character to be tested.

Remarks

Lead bytes are unique to double-byte character sets. A lead byte introduces a double-byte character. Lead bytes occupy a specific range of byte values. The FsRtlIsLeadDbcsCharacter macro uses the system code page to check lead-byte ranges.

For information about other string-handling routines, see Run-Time Library (RTL) Routines.

FsRtlIsLeadDbcsCharacter - NtDoc