In the snippet below it is shown how to show screen share video for specified TelephonyConversation through ConversationWindow.showForConversation method:
var screenShareWindow;
var conversation
// ...
// Create screen share video window in designated html element.
// Obtain telephony conversation for which we want to show screen share video.
// ...
screenShareWindow.showForConversation();
var screenShareWindow;
var conversation
// ...
// Create screen share video window in designated html element.
// Obtain telephony conversation for which we want to show screen share video.
// ...
screenShareWindow.hideForConversation();