How to hide thumbnail video

I use Zoom in education area. I want to hide other classmates video during class. only keep teacher and myself video. I try this API IMeetingVideoController::StopAttendeeVideo() on onUserJoin(ZOOM_SDK_NAMESPACE::IList* lstUserID, const wchar_t* strUserList) callback, but it seams not work.

Thanks for using Zoom SDK.

Here is the answer for your question. The reason is that you are not the host of the meeting. Only the host has the priviledge to stop attendee’s video.


understand, Thanks your reply.

Closing as solved.