---
title: pixelSize
framework: Application Services
role: symbol
role_heading: Instance Property
platforms: [macOS 10.0+]
path: applicationservices/cmbitmap/1560543-pixelsize
---

# pixelSize

The number of bits per pixel. The pixel size should correspond to the packing size specified in the `space` field. This requirement is not enforced as of ColorSync version 2.5, but it may be enforced in future versions.

## Declaration

```occ
size_t pixelSize;
```