# CFBitVectorGetBits(_:_:_:) Returns the bit values in a range of indices in a bit vector. ``` func CFBitVectorGetBits(_ bv: CFBitVector!, _ range: CFRange, _ bytes: UnsafeMutablePointer!) ``` ## Parameters `bv` The bit vector to examine. `range` The range of bit values to return. `bytes` On return, contains the requested bit values from `bv`. This argument must point to enough memory to hold the number of bits requested. The requested bits are left-aligned with the first requested bit stored in the left-most, or most-significant, bit of the byte stream. ## Discussion --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)