I have Xprotect management client,smart client,SDK
Please see my answer to your other post: https://developer.milestonesys.com/s/question/0D50O00003KBKAASA5/how-can-i-add-some-text-in-the-video-stream-what-is-the-use-of-sdk-where-i-should-code-for-display-text-to-the-video-stream