# window(ofType:usingSequence:count:isHalfWindow:) Returns an array that contains the specified window. ``` static func window(ofType: T.Type, usingSequence sequence: vDSP.WindowSequence, count: Int, isHalfWindow: Bool) -> [T] where T : vDSP_FloatingPointGeneratable ``` ## Parameters `ofType` The precision of the generated window. `sequence` The window sequence to use for generation. `count` The number of elements to generate. `isHalfWindow` A Boolean value that specifies whether the function generates half of the number of elements. ## Discussion Use this function to generate and return a vector populated with values of a specified window sequence. The following code shows how to generate a single-precision Blackman window: ```swift let c = vDSP.window(ofType: Float.self, usingSequence: .blackman, count: 1024, isHalfWindow: false) ``` The following figure illustrates the values of the output vector, `c`:  --- 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)