RtlUshortByteSwap macro (wdm.h)

The RtlUshortByteSwap routine reverses the ordering of the two bytes in a 16-bit unsigned integer value.

Syntax

NTSYSAPI USHORT RtlUshortByteSwap(
  [in] USHORT Source
);

Parameters

[in] Source

A USHORT value to convert to a byte-swapped version.

Return value

The byte-swapped version of the input parameter value.

Remarks

For example, if the Source parameter value is 0x1234, the routine returns 0x3412.

A typical use of this routine is to convert a USHORT value from little-endian byte format to big-endian byte format, and vice versa.

Use this routine instead of ntohs or htons.

To reverse the ordering of bytes in a ULONG value, use the RtlUlongByteSwap routine. To reverse ordering of bytes in a ULONGLONG value, use the RtlUlonglongByteSwap routine.

Requirements

Requirement	Value
Minimum supported client	Available starting with Windows 2000.
Target Platform	Universal
Header	wdm.h (include Wdm.h, Ntddk.h, Ntifs.h)
Library	NtosKrnl.lib
DLL	NtosKrnl.exe
IRQL	Any level

See also

RtlUlongByteSwap

RtlUlonglongByteSwap