Virtulna keyboard Philips

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On the official website https://www.yourappontv.com/documentation/example-code, is an example of how the keyboard is implemented, but when tested on the TV and had the status of input focus, the system appeared under the keyboard and the screen and keyboard which was implemented from example (CE-HTML examples / Virtual keyboard) and then we screen two keyboard. Here the question arises whether the TV on all versions of the system has a keyboard? If so, you can find out where to get documentation on it? If not on all versions of TV system has a keyboard, how then oprydilyty keyboard when you show?
Sorry, for my english!