---
title: getGammaTableByIndex
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/iodisplay/1564938-getgammatablebyindex
---

# getGammaTableByIndex

## Declaration

```occ
virtual IOReturn getGammaTableByIndex(UInt32 *channelCount, UInt32 *dataCount, UInt32 *dataWidth, void **data);
```