# C# wrapper Custom UI

**URL:** <https://devforum.zoom.us/t/c-wrapper-custom-ui/26393>\
**Category:** Windows\
**Created:** [August 6, 2020, 7:39am UTC](https://devforum.zoom.us/t/c-wrapper-custom-ui/26393 "2020-08-06T07:39:12Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ajc0006](https://avatars.discourse-cdn.com/v4/letter/a/f9ae1b/32.png) [@ajc0006](https://devforum.zoom.us/u/ajc0006)\
**Post date:** [August 6, 2020, 7:39am UTC](https://devforum.zoom.us/t/c-wrapper-custom-ui/26393/1 "2020-08-06T07:39:12Z")

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Please can you explain to me the differences in use of VideoRenderElementType.

When I use the CreateVideoElement (VideoRenderElementType.VideoRenderElement\_ACTIVE) I correctly get the video of the person who is currently speaking on the screen. I create this in the onMeetingStatusChanged event when the meeting status is “MEETING\_STATUS\_INMEETING”.  
In the cases of VideoRenderElementType.VideoRenderElement\_NORMAL or VideoRenderElementType.VideoRenderElement\_PREVIEW I get only a black region.

I used C# wrapper v5.0.24433.0616