MixedRealityKeyboardBase.Visible Property    
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Returns true if the keyboard is currently open.
public:
 property bool Visible { bool get(); };public bool Visible { get; }member this.Visible : boolPublic ReadOnly Property Visible As Boolean