RtlCompareUnicodeString function (wdm.h)

The RtlCompareUnicodeString routine compares two Unicode strings.

Syntax

NTSYSAPI LONG RtlCompareUnicodeString(
  [in] PCUNICODE_STRING String1,
  [in] PCUNICODE_STRING String2,
  [in] BOOLEAN          CaseInSensitive
);

[in] String1

Pointer to the first string.

[in] String2

Pointer to the second string.

[in] CaseInSensitive

If TRUE, case should be ignored when doing the comparison.

RtlCompareUnicodeString returns a signed value that gives the results of the comparison:

Return code	Description
Zero	String1 equals String2.
< Zero	String1 is less than String2.
> Zero	String1 is greater than String2.

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