---
name: "RtlPrefixUnicodeString"
section: "3w"
platform: "linux"
package: "libwine-dev"
version: "1.4.1-4"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/RtlPrefixUnicodeString"
---

# RtlPrefixUnicodeString(3w)

## NAME

**RtlPrefixUnicodeString** (NTDLL.@)

## SYNOPSIS

BOOLEAN RtlPrefixUnicodeString\
  (\
   const UNICODE\_STRING\* *s1*,\
   const UNICODE\_STRING\* *s2*,\
   BOOLEAN               *ignore\_case*\
  )

## DESCRIPTION

See **[RtlPrefixString(3w)](/RtlPrefixString/3w.md)**.

## IMPLEMENTATION

Declared in **"winternl.h"**.

Implemented in **"dlls/ntdll/rtlstr.c"**.

Debug channel **"ntdll"**.