Tooltips outside a window

The problem is that a tooltips has shown only inside window, but not outside then i had using UpdateLayeredWindow() + sf::RenderTexture for window creation.

Could you clarify a bit what the situation is and what you expect?
It is impossible to draw outside the window, you always need something to draw on. (I know it is possible to draw directly to the screen, but that is not something in the scope of SFML or TGUI)