# CmdChannel Usage?

**URL:** <https://devforum.zoom.us/t/cmdchannel-usage/63659>\
**Category:** Video SDK\
**Created:** [February 2, 2022, 6:47pm UTC](https://devforum.zoom.us/t/cmdchannel-usage/63659 "2022-02-02T18:47:40Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![hung](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/hung/32/22250_2.png) [@hung](https://devforum.zoom.us/u/hung)\
**Post date:** [February 2, 2022, 6:47pm UTC](https://devforum.zoom.us/t/cmdchannel-usage/63659/1 "2022-02-02T18:47:40Z")

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**Description**  
In the new changelog of the Desktop Video SDK, there’s a new interface `IZoomVideoSDKCmdChannel`/`ZMVideoSDKCmdChannel`. Could someone elaborate/enumerate on all the possible commands that this feature enables?  
**Which Desktop Video SDK version?**  
1.2.0  
**Context**  
I’m looking for some specific features that were not yet in the previous sdk versions – curious to see if this would help with my use cases.

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**Author:** ![jon.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jon.zoom/32/13495_2.png) [@jon.zoom](https://devforum.zoom.us/u/jon.zoom)\
**Post date:** [February 3, 2022, 12:42am UTC](https://devforum.zoom.us/t/cmdchannel-usage/63659/2 "2022-02-03T00:42:40Z")

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Hi @hung, thanks for the post.

The command channel does not have any predefined commands. It is a way for you to send your own commands or data to other participants in the same session, which you can then respond to through the [`onCommandReceived`](https://marketplacefront.zoom.us/sdk/custom/windows/class_i_zoom_video_s_d_k_delegate.html#ab9db8203d88098dc2a6ff83d9bdd9878) callback. Since this feature is completely open-ended, you are free to create whatever commands may suit your use case.

Thanks!

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**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [March 5, 2022, 10:43am UTC](https://devforum.zoom.us/t/cmdchannel-usage/63659/3 "2022-03-05T10:43:17Z")

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Closed on March 5, 2022, 10:43am UTC

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