#ifndef _NTRTL_H

/**
 * The RtlCompareUnicodeStrings routine compares two Unicode strings.
 * 
 * \param[in] String1 Pointer to the first string.
 * \param[in] String1Length The length, in bytes, of the first string.
 * \param[in] String2 Pointer to the second string.
 * \param[in] String2Length The length, in bytes, of the second string.
 * \param[in] CaseInSensitive If TRUE, case should be ignored when doing the comparison.
 * \return A signed value that gives the results of the comparison.
 */
_Must_inspect_result_
NTSYSAPI
LONG
NTAPI
RtlCompareUnicodeStrings(
    _In_reads_(String1Length) PCWCH String1,
    _In_ SIZE_T String1Length,
    _In_reads_(String2Length) PCWCH String2,
    _In_ SIZE_T String2Length,
    _In_ BOOLEAN CaseInSensitive
    );

#endif
View code on GitHub