---
title: vDSP_HALF_WINDOW
framework: accelerate
role: symbol
role_heading: Global Variable
path: accelerate/vdsp_half_window
---

# vDSP_HALF_WINDOW

Specifies that the window should only contain the bottom half of the values (0 to (N+1)/2).

## Declaration

```swift
var vDSP_HALF_WINDOW: Int { get }
```

## See Also

### Vector generation with window functions

- [Reducing spectral leakage with windowing](accelerate/reducing-spectral-leakage-with-windowing.md)
- [window(ofType:usingSequence:count:isHalfWindow:)](accelerate/vdsp/window(oftype:usingsequence:count:ishalfwindow:).md)
- [formWindow(usingSequence:result:isHalfWindow:)](accelerate/vdsp/formwindow(usingsequence:result:ishalfwindow:)-6cmve.md)
- [formWindow(usingSequence:result:isHalfWindow:)](accelerate/vdsp/formwindow(usingsequence:result:ishalfwindow:)-9dls5.md)
- [vDSP.WindowSequence](accelerate/vdsp/windowsequence.md)
- [vDSP_HANN_DENORM](accelerate/vdsp_hann_denorm.md)
- [vDSP_HANN_NORM](accelerate/vdsp_hann_norm.md)