# Raw color format in device discovery

**URL:** <https://forum.commonvisionblox.com/t/raw-color-format-in-device-discovery/253>\
**Category:** C-style API\
**Tags:** linearaccess, discovery\
**Created:** [October 19, 2017, 3:05pm UTC](https://forum.commonvisionblox.com/t/raw-color-format-in-device-discovery/253 "2017-10-19T15:05:13Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![dusalf](https://avatars.discourse-cdn.com/v4/letter/d/e9c0ed/32.png) [@dusalf](https://forum.commonvisionblox.com/u/dusalf)\
**Post date:** [October 23, 2017, 9:19am UTC](https://forum.commonvisionblox.com/t/raw-color-format-in-device-discovery/253/2 "2017-10-23T09:19:00Z")

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Hi,

you need to set a parameter on the AccessToken. So after you did your discovery befor you extract the access token you want to call something like

```auto
  DOSetParameter(discoverList, 0, "PixelFormat", "0");
```

assuming you want to set the PixelFormat for the first device in your list. After that you need to retrieve the AccessToken as before and the JSON contains the parameter.

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