INVALID_HANDLE_VALUE PCHARINFO NULL ToMainscre main_screen_handle colored_terminal clear_entire mainscreen_handle outout handle <'a> unw does mut context clear_en clear singleton IState Context self.changed_states context undo ICommand empty execute register ScreenContext tomain State write crossterm_cursor D:\Windows\GIT\crossterm D:\Windows\GIT\crossterm\src true DEFINITION_ORDER Android 1513618274599 1513618274599