Sdl.Windowtest flags mask is true if any of the flags in mask is set in flags.
val windowed : flagsEqual to 0. The flag doesn't exist in SDL, it's for using with set_window_fullscreen.
val fullscreen : flagsEqual to 0. The flag doesn't exist in SDL, it's for using with set_window_fullscreen.
val fullscreen_desktop : flagsval opengl : flagsval shown : flagsval borderless : flagsval resizable : flagsval minimized : flagsval maximized : flagsval input_grabbed : flagsval input_focus : flagsval mouse_focus : flagsval foreign : flagsval allow_highdpi : flagsval mouse_capture : flagsval always_on_top : flagsval utility : flagsval vulkan : flags