Roku Developer Program

[gsarath]

Can some one please specify how we can add Buttons to roVideoScreen. Can we override the Captions Dialogs(* key) to handle this?

[joetesta]

I don't think it's possible. Instead you can use roVideoPlayer and then you can add overlay on screen with buttons.
Here is a "S.O." question about doing the same: http://stackoverflow.com/questions/20932798/text-overlay-on-fullscreen-video-roku
Check out this example to get started https://blog.roku.com/developer/2012/10/15/building-a-custom-video-player/