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

# RtlInitializeCriticalSectionEx(3w)

## NAME

**RtlInitializeCriticalSectionEx** (NTDLL.@)

## SYNOPSIS

NTSTATUS RtlInitializeCriticalSectionEx\
  (\
   RTL\_CRITICAL\_SECTION\* *crit*,\
   ULONG                 *spincount*,\
   ULONG                 *flags*\
  )

## DESCRIPTION

Initialises a new critical section with a given spin count and *flags*.

## PARAMS

*crit* **\[Out\]**  Critical section to initialise.

*spincount* **\[In\]**  Number of times to spin upon contention.

*flags* **\[In\]**  **RTL\_CRITICAL\_SECTION\_FLAG\_** *flags* from winnt.h.

## RETURNS

**STATUS\_SUCCESS**.

## NOTES

Available on Vista or later.

## SEE

RtlInitializeCriticalSection(), **[RtlDeleteCriticalSection(3w)](/RtlDeleteCriticalSection/3w.md)**, RtlEnterCriticalSection(), **[RtlLeaveCriticalSection(3w)](/RtlLeaveCriticalSection/3w.md)**, RtlTryEnterCriticalSection(), **[RtlSetCriticalSectionSpinCount(3w)](/RtlSetCriticalSectionSpinCount/3w.md)**

## IMPLEMENTATION

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

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

Debug channel **"ntdll"**.