     IOObjectRelease(r)
 }
 
-let help_display_list = "List all available displays by:\n    screen-resolution-switcher -l"
-let help_msg = """
+func seeHelp() {
+print("""
 Usage:
 screen-resolution-switcher [-h|--help] [-l|--list|list] [-m|--mode|mode displayIndex]
 [-s|--set|set displayIndex width scale] [-r|--set-retina|retina displayIndex width],

    }

    // override a lesser used operator to performance diplay mode checks concisely
    static func ~= (lhs: DisplayUserSetting, rhs: DisplayInfo) -> Bool {
        var bool = lhs.width == rhs.width

        if lhs.height != nil {

    var displayIndex = 0, width = 0
    var height, scale:Int?
    init(_ arr:[String]) {
        var args = arr.compactMap { Int($0) }
        
        if args.count < 1 { return }
        
