---
title: activeWidth
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 13.0+, macOS 10.0+]
path: iokit/iopixelinformation/1505617-activewidth
---

# activeWidth

Number of pixels visible per row.

## Declaration

```occ
UInt32 activeWidth;
```

## See Also

### Fields

- [bytesPerRow](iokit/iopixelinformation/1505591-bytesperrow.md)
- [bytesPerPlane](iokit/iopixelinformation/1505598-bytesperplane.md)
- [bitsPerPixel](iokit/iopixelinformation/1505957-bitsperpixel.md)
- [pixelType](iokit/iopixelinformation/1505700-pixeltype.md)
- [componentCount](iokit/iopixelinformation/1505140-componentcount.md)
- [bitsPerComponent](iokit/iopixelinformation/1506162-bitspercomponent.md)
- [componentMasks](iokit/iopixelinformation/1505522-componentmasks.md)
- [pixelFormat](iokit/iopixelinformation/1505071-pixelformat.md)
- [flags](iokit/iopixelinformation/1505778-flags.md)
- [activeHeight](iokit/iopixelinformation/1505946-activeheight.md)
- [reserved](iokit/iopixelinformation/1505942-reserved.md)