activate
- Preface
- Introduction
- Tutorial
- Implementation
- Commands
- bitmap
- eval-wish
- get-tk-var
- photo
- set-tk-var!
- tk
- create-widget
- button
- canvas
- checkbutton
- entry
- frame
- label
- labelframe
- listbox
- menu
- menubutton
- message
- panedwindow
- radiobutton
- scale
- scrollbar
- scrolledtext
- spinbox
- text
- tk_optionMenu
- toplevel
- get-id
- exec
- call
- create-widget
- 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> 'activate index)
- Change the state of the entry indicated by index to active and redisplay it using its active colors. Any previously-active entry is deactivated.
If index is specified as none, or if the specified entry is disabled, then the menu ends up with no active entry.
Returns an empty string.