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

# RtlClearBits(3w)

## NAME

**RtlClearBits** (NTDLL.@)

## SYNOPSIS

VOID RtlClearBits\
  (\
   PRTL\_BITMAP *lpBits*,\
   ULONG       *ulStart*,\
   ULONG       *ulCount*\
  )

## DESCRIPTION

Clear bits in a bitmap.

## PARAMS

*lpBits* **\[In\]**  Bitmap pointer.

*ulStart* **\[In\]**  First bit to set.

*ulCount* **\[In\]**  Number of consecutive bits to clear.

## RETURNS

Nothing.

## IMPLEMENTATION

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

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

Debug channel **"ntdll"**.