RtlCompareString function (ntddk.h)

The RtlCompareString routine compares two counted strings.

Syntax

NTSYSAPI LONG RtlCompareString(
  [in] const STRING *String1,
  [in] const 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.

RtlCompareString 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	ntddk.h (include Ntddk.h, Ntifs.h)
Library	NtosKrnl.lib
DLL	NtosKrnl.exe (kernel mode); Ntdll.dll (user mode)
IRQL	PASSIVE_LEVEL