Does the window has the mouse focus?

Can only be queried because it is ignored by SDLWindow::new

Property definitions

sdl2 $ SDLWindowFlags :: has_mouse_focus
	# Does the window has the mouse focus?
	#
	# Can only be queried because it is ignored by `SDLWindow::new`
	fun has_mouse_focus: Bool `{ return self & SDL_WINDOW_MOUSE_FOCUS; `}
lib/sdl2/sdl2_base.nit:219,2--222,70