UserInterfaceObjectBase Properties

Does this object have keyboard focus? An object with keyboard focus gets first refusal on what is typed in a viewport; what it does not use carries on to the command line as usual.

Text shown in a tooltip when the mouse rests over this object. Null or an empty string means no tooltip, which is what an object starts with. One tooltip is on screen at a time; whichever object the mouse is over owns it.

Is the user interface object visible? Objects that are not visible will not be drawn and will not receive mouse events