DOKK / manpages / debian 11 / tklib / autoscroll.3tk.en
autoscroll(3tk) Automatic mapping of scrollbars autoscroll(3tk) 







autoscroll - Provides for a scrollbar to automatically mapped and
    unmapped as needed








package require Tcl 


package require autoscroll ?1.1?


::autoscroll::autoscroll scrollbar


::autoscroll::unautoscroll scrollbar


::autoscroll::wrap


::autoscroll::unwrap












This package allows scrollbars to be mapped and unmapped as needed
    depending on the size and content of the scrollbars scrolled widget. The
    scrollbar must be managed by either pack or grid, other geometry managers
    are not supported.


When managed by pack, any geometry changes made in the scrollbars
    parent between the time a scrollbar is unmapped, and when it is mapped will
    be lost. It is an error to destroy any of the scrollbars siblings while the
    scrollbar is unmapped. When managed by grid, if anything becomes gridded in
    the same row and column the scrollbar occupied it will be replaced by the
    scrollbar when remapped.


This package may be used on any scrollbar-like widget as long as
    it supports the set subcommand in the same style as scrollbar. If the
    set subcommand is not used then this package will have no effect.



  
::autoscroll::autoscroll scrollbar

  
Arranges for the already existing scrollbar scrollbar to be mapped
      and unmapped as needed.

  
::autoscroll::unautoscroll scrollbar

  
Returns the named scrollbar to its original static state.

  
::autoscroll::wrap

  
Arranges for all scrollbars created after this command is run to be
      automatically mapped and unmapped as needed.

  
::autoscroll::unwrap

  
Turns off the automatic autoscrolling of all new scrollbars. Does not
      effect existing scrollbars








text .t -yscrollcommand ".scrolly set"
scrollbar .scrolly -orient v -command ".t yview"
pack .scrolly -side right -fill y
pack .t -side left -fill both -expand 1
::autoscroll::autoscroll .scrolly











This document, and the package it describes, will undoubtedly
    contain bugs and other problems. Please report such in the category
    autoscroll of the Tklib Trackers
    [http://core.tcl.tk/tklib/reportlist]. Please also report any ideas for
    enhancements you may have for either package and/or documentation.








scroll, scrollbar







  

    1.1
    tklib