yview

Preface
Introduction
Tutorial
Implementation
Commands
- bitmap
- eval-wish
- get-tk-var
- photo
- set-tk-var!
- tk
  - create-widget
    - button
    - canvas
      - Introduction
      - Items
      - Command
        
        addtag
        
        bbox
        
        bind
        
        canvasx
        
        canvasy
        
        cget
        
        configure
        
        coords
        
        create
        
        create-widget
        
        dchars
        
        delete
        
        dtag
        
        find
        
        focus
        
        gettags
        
        icursor
        
        index
        
        insert
        
        itemconfigure
        
        itemcget
        
        lower
        
        move
        
        postscript
        
        raise
        
        scale
        
        scan
        
        select
        
        type
        
        xview
        
        yview
      - Options
    - checkbutton
    - entry
    - frame
    - label
    - labelframe
    - listbox
    - menu
    - menubutton
    - message
    - panedwindow
    - radiobutton
    - scale
    - scrollbar
    - scrolledtext
    - spinbox
    - text
    - tk_optionMenu
    - toplevel
  - get-id
  - exec
  - call
- tk-id->widget
- tk-var
- tk/after
- tk/appname
- tk/bind
- tk/bindtags
- tk/caret
- tk/choosecolor
- tk/choosedirectory
- tk/clipboard
- tk/console
- tk/destroy
- tk/dialog
- tk/event
- tk/focus
- tk/getopenfile
- tk/getsavefile
- tk/grab
- tk/grid
- tk/image
- tk/lower
- tk/messagebox
- tk/option
- tk/pack
- tk/place
- tk/popup
- tk/raise
- tk/scaling
- tk/update
- tk/useinputmethods
- tk/wait
- tk/windowingsystem
- tk/winfo
- tk/wm
Options
Extensions
Changes

(#<widget> 'yview ?args?)

This command is used to query and change the vertical position of the information displayed in the canvas's window. It can take any of the following forms:

(#<widget> 'yview): Returns a list containing two elements. Each element is a real fraction between 0 and 1; together they describe the vertical span that is visible in the window. For example, if the first element is .6 and the second element is 1.0, the lowest 40% of the canvas's area (as defined by the -scrollregion option) is visible in the window. These are the same values passed to scrollbars via the -yscrollcommand option.
(#<widget> 'yview 'moveto fraction): Adjusts the view in the window so that fraction of the canvas's area is off-screen to the top. Fraction is a fraction between 0 and 1.
(#<widget> 'yview 'scroll number what): This command adjusts the view in the window up or down according to number and what. Number must be an integer. What must be either units or pages. If what is units, the view adjusts up or down in units of the yScrollIncrement option, if it is greater than zero, or in units of one-tenth the window's height otherwise. If what is pages then the view adjusts in units of nine-tenths the window's height. If number is negative then higher information becomes visible; if it is positive then lower information becomes visible.


		yview
		yview

	Preface Introduction Tutorial Implementation Commands bitmap eval-wish get-tk-var photo set-tk-var! tk create-widget button canvas Introduction Items Command addtag bbox bind canvasx canvasy cget configure coords create create-widget dchars delete dtag find focus gettags icursor index insert itemconfigure itemcget lower move postscript raise scale scan select type xview yview Options checkbutton entry frame label labelframe listbox menu menubutton message panedwindow radiobutton scale scrollbar scrolledtext spinbox text tk_optionMenu toplevel get-id exec call tk-id->widget tk-var tk/after tk/appname tk/bind tk/bindtags tk/caret tk/choosecolor tk/choosedirectory tk/clipboard tk/console tk/destroy tk/dialog tk/event tk/focus tk/getopenfile tk/getsavefile tk/grab tk/grid tk/image tk/lower tk/messagebox tk/option tk/pack tk/place tk/popup tk/raise tk/scaling tk/update tk/useinputmethods tk/wait tk/windowingsystem tk/winfo tk/wm Options Extensions Changes	(#<widget> 'yview ?args?) This command is used to query and change the vertical position of the information displayed in the canvas's window. It can take any of the following forms: (#<widget> 'yview) Returns a list containing two elements. Each element is a real fraction between 0 and 1; together they describe the vertical span that is visible in the window. For example, if the first element is .6 and the second element is 1.0, the lowest 40% of the canvas's area (as defined by the -scrollregion option) is visible in the window. These are the same values passed to scrollbars via the -yscrollcommand option. (#<widget> 'yview 'moveto fraction) Adjusts the view in the window so that fraction of the canvas's area is off-screen to the top. Fraction is a fraction between 0 and 1. (#<widget> 'yview 'scroll number what) This command adjusts the view in the window up or down according to number and what. Number must be an integer. What must be either units or pages. If what is units, the view adjusts up or down in units of the yScrollIncrement option, if it is greater than zero, or in units of one-tenth the window's height otherwise. If what is pages then the view adjusts in units of nine-tenths the window's height. If number is negative then higher information becomes visible; if it is positive then lower information becomes visible. © Author \| Home \| Sitemap