# Not able to open custom UI **URL:** \ **Category:** Meeting SDK\ **Created:** [February 22, 2020, 2:23pm UTC](https://devforum.zoom.us/t/not-able-to-open-custom-ui/8208 "2020-02-22T14:23:32Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![ankit.acet13](https://avatars.discourse-cdn.com/v4/letter/a/bc8723/32.png) [@ankit.acet13](https://devforum.zoom.us/u/ankit.acet13)\ **Post date:** [February 22, 2020, 2:23pm UTC](https://devforum.zoom.us/t/not-able-to-open-custom-ui/8208/1 "2020-02-22T14:23:32Z")
I am trying to createvideocontainer , but not able to open customUI screen, although I am able to join meeting. not able to show that meeting on customized UI Below is the code i have added: ```auto VideoPlayer vp = new VideoPlayer(); RECT rt = new RECT { Right = 0, Top = 10, Left = 10, Bottom = 50 }; GCHandle handle1 = GCHandle.Alloc(vp); IntPtr ptr = (IntPtr)handle1; var container = ZOOM_SDK_DOTNET_WRAP.CZoomSDKeDotNetWrap.Instance.GetCustomizedUIMgrWrap().CreateVideoContainer(ptr, rt); container.CreateVideoElement(VideoRenderElementType.VideoRenderElement_ACTIVE); container.Show(); ``` ---
**Author:** ![carson.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/carson.zoom/32/785_2.png) [@carson.zoom](https://devforum.zoom.us/u/carson.zoom)\ **Post date:** [February 24, 2020, 11:34pm UTC](https://devforum.zoom.us/t/not-able-to-open-custom-ui/8208/2 "2020-02-24T23:34:49Z")
Hi [ankit.acet13](https://devforum.zoom.us/u/ankit.acet13), Thanks for the post. Which SDK version are you using? Did you enable the custom UI feature when initializing the SDK? `param.config_opts.optionalFeatures = 1<<5;` Please see: [https://marketplace.zoom.us/docs/sdk/native-sdks/windows/mastering-sdk/custom-ui-feature](https://marketplace.zoom.us/docs/sdk/native-sdks/windows/mastering-sdk/custom-ui-feature) for more info. Thanks! ---
**Author:** ![ankit.acet13](https://avatars.discourse-cdn.com/v4/letter/a/bc8723/32.png) [@ankit.acet13](https://devforum.zoom.us/u/ankit.acet13)\ **Post date:** [February 25, 2020, 12:21pm UTC](https://devforum.zoom.us/t/not-able-to-open-custom-ui/8208/3 "2020-02-25T12:21:12Z")
Hi, I am able to connect , open and join meeting if i use zoom meeting UI. it works fine for me. but I am not able to open custom UI, although in case of custom UI aproach I am able to join the meeting. Here is the approach i am following : Initialization : Code snippet for initialization : ZOOM\_SDK\_DOTNET\_WRAP.InitParam param = new ZOOM\_SDK\_DOTNET\_WRAP.InitParam(); param.web\_domain = “[https://zoom.us](https://zoom.us)”; param.config\_opts.optionalFeatures = 32; ``` ZOOM_SDK_DOTNET_WRAP.SDKError err = ZOOM_SDK_DOTNET_WRAP.CZoomSDKeDotNetWrap.Instance.Initialize(param); ``` AUTHENTICATION : Code Snippet for authentication : ZOOM\_SDK\_DOTNET\_WRAP.CZoomSDKeDotNetWrap.Instance.GetAuthServiceWrap().Add\_CB\_onAuthenticationReturn(onAuthenticationReturn); ``` ZOOM_SDK_DOTNET_WRAP.AuthParam authparam = new ZOOM_SDK_DOTNET_WRAP.AuthParam(); authparam.appKey = "XXXXXXXX"; authparam.appSecret = "XXXXXXX"; ZOOM_SDK_DOTNET_WRAP.CZoomSDKeDotNetWrap.Instance.GetAuthServiceWrap().SDKAuth(authparam); ``` Meeting status change event : there is one event onMeetingStatusChange, when the meeting status is MEETING\_STATUS\_INMEETING Below Code executes : videocontainer vc = new videocontainer(); RECT t = new RECT { Right = 10, Left = 10, Bottom = 100, Top = 10 }; GCHandle handle1 = GCHandle.Alloc(vc); IntPtr parameter = (IntPtr)handle1; ``` var customUIContainer = ZOOM_SDK_DOTNET_WRAP.CZoomSDKeDotNetWrap.Instance.GetCustomizedUIMgrWrap().CreateVideoContainer(parameter, t); //customUIContainer. customUIContainer.CreateVideoElement(VideoRenderElementType.VideoRenderElement_ACTIVE); customUIContainer.Show(); ``` JOINING Meeting : Code snippet for the same : ZOOM\_SDK\_DOTNET\_WRAP.JoinParam joinparam = new ZOOM\_SDK\_DOTNET\_WRAP.JoinParam(); [//joinparam.userType](https://joinparam.userType) = ZOOM\_SDK\_DOTNET\_WRAP.SDKUserType.SDK\_UT\_APIUSER; joinparam.userType = ZOOM\_SDK\_DOTNET\_WRAP.SDKUserType.SDK\_UT\_APIUSER; ZOOM\_SDK\_DOTNET\_WRAP.JoinParam4APIUser join\_api\_param = new ZOOM\_SDK\_DOTNET\_WRAP.JoinParam4APIUser(); join\_api\_param.meetingNumber = 123456789; join\_api\_param.userName = “”; joinparam.apiuserJoin = join\_api\_param; ``` ZOOM_SDK_DOTNET_WRAP.SDKError err = ZOOM_SDK_DOTNET_WRAP.CZoomSDKeDotNetWrap.Instance.GetMeetingServiceWrap().Join(joinparam); After following this approacg i am able to join meeting but custom UI provided by zoom is not getting opened. Can you please let me know if i am missing something or any problem with my approach. ``` ---
**Author:** ![carson.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/carson.zoom/32/785_2.png) [@carson.zoom](https://devforum.zoom.us/u/carson.zoom)\ **Post date:** [February 27, 2020, 2:36am UTC](https://devforum.zoom.us/t/not-able-to-open-custom-ui/8208/4 "2020-02-27T02:36:09Z")
Hi [ankit.acet13](https://devforum.zoom.us/t/not-able-to-open-custom-ui/8208/3), Thanks for the reply and for providing the code snippet. The steps to use the Custom UI can be concluded as the following: 1. Provide a window and use the window handle to create a video container 2. Create video elements in the video container 3. Use the video elements and subscribe to the video stream of a certain user 4. Show the window Based on your code snippet, the step 2, 3 is not showing. Hope this helps. Thanks! ---
**Author:** ![ankit.acet13](https://avatars.discourse-cdn.com/v4/letter/a/bc8723/32.png) [@ankit.acet13](https://devforum.zoom.us/u/ankit.acet13)\ **Post date:** [February 29, 2020, 5:11pm UTC](https://devforum.zoom.us/t/not-able-to-open-custom-ui/8208/5 "2020-02-29T17:11:24Z")
hi, Thanks for reply. As per ur reply, 1. Provide a window and use the window handle to create a video container 2. Create video elements in the video container 3. Use the video elements and subscribe to the video stream of a certain user 4. Show the window I have mapped your steps to below code snippet , please verify and let me know where i missed. var mp = axWindowsMediaPlayer1; ``` RECT rt = new RECT { Right = 0, Top = 10, Left = 10, Bottom = 50 }; GCHandle handle1 = GCHandle.Alloc(mp); IntPtr ptr = (IntPtr)handle1; var container = ZOOM_SDK_DOTNET_WRAP.CZoomSDKeDotNetWrap.Instance.GetCustomizedUIMgrWrap().CreateVideoContainer(ptr, rt); step 1 container.CreateVideoElement(VideoRenderElementType.VideoRenderElement_ACTIVE); step 2 container.Show(); step 4 ``` What i found was may be i missed step 3, for this can u tell me how can I apply code to use video elements and subscribe to video stream? Thanks in Advance. ---
**Author:** ![ankit.acet13](https://avatars.discourse-cdn.com/v4/letter/a/bc8723/32.png) [@ankit.acet13](https://devforum.zoom.us/u/ankit.acet13)\ **Post date:** [March 3, 2020, 4:47pm UTC](https://devforum.zoom.us/t/not-able-to-open-custom-ui/8208/6 "2020-03-03T16:47:20Z")
Can you please let me know. Where I am missing something? ---
**Author:** ![carson.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/carson.zoom/32/785_2.png) [@carson.zoom](https://devforum.zoom.us/u/carson.zoom)\ **Post date:** [March 5, 2020, 1:26am UTC](https://devforum.zoom.us/t/not-able-to-open-custom-ui/8208/7 "2020-03-05T01:26:18Z")
Hi [ankit.acet13](https://devforum.zoom.us/t/not-able-to-open-custom-ui/8208/6), Thanks for the reply and I see you have the same question in this post: [How to custom the conference UI](https://devforum.zoom.us/t/how-to-custom-the-conference-ui/2810/8), please see my response to your questions there. Hope this helps. Thanks! ---
**Author:** ![DeveloperBot](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/developerbot/32/12632_2.png) [@DeveloperBot](https://devforum.zoom.us/u/DeveloperBot)\ **Post date:** [August 21, 2020, 7:27pm UTC](https://devforum.zoom.us/t/not-able-to-open-custom-ui/8208/8 "2020-08-21T19:27:55Z")