Detailed Description

Focus styles refer to the way a control can gain the keyboard focus.

FocusStyle::NoFocus	The control does not accept the keyboard focus
FocusStyle::Tab	The control can be focused by pressing the tab key
FocusStyle::Click	The control can be focused by clicking on it with the mouse
FocusStyle::Wheel	The control can be focused with the mouse wheel
FocusStyle::TextListTab	Special mode reserved for macOS