Secure Boot Flash Ordering

TTouchKeyboard renders visual feedback for the pressed state of each key by drawing the button when it is in the dsPressed state, making the typed password visible to observers. | When entering a password using Vcl.Touch.Keyboard.TTouchKeyboard on a multi-monitor display, other users can observe the on-screen key presses and reconstruct the password. TTouchKeyboard does not provide a built-in way to hide pressed-key visuals or mouse interaction feedback. | Subclass TKeyboardButton and override its Paint method to skip calling inherited rendering when the button State is dsPressed, then set TouchKeyboard1.DefaultButtonClass to this subclass (and rebuild by adjusting the Layout if needed) so pressed keys are not visually shown.