Utility procedures for managing the input focus.

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http://purl.org/tcl/home/man/tcl8.4/TkCmd/focusNext.htm

See also: [focusNext].

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'''SYNOPSIS'''

'''tk_focusNext''' ''window''

'''DESCRIPTION'''

'''tk_focusNext''' is a utility procedure used for keyboard traversal. It returns the "next" window after ''window'' in focus order. The focus order is determined by the stacking order of windows and the structure of the window hierarchy. Among siblings, the focus order is the same as the stacking order, with the lowest window being first. If a window has children, the window is visited first, followed by its children (recursively), followed by its next sibling. Top-level windows other than ''window'' are skipped, so that '''tk_focusNext''' never returns a window in a different top-level from ''window''.

After computing the next window, '''tk_focusNext''' examines the window's '''-takefocus''' option to see whether it should be skipped. If so, '''tk_focusNext''' continues on to the next window in the focus order, until it eventually finds a window that will accept the focus or returns back to window.

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When would one most likely use '''tk_focusNext''' - in the context of writing [bind] commands?

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See also:

   * [focus]
   * [tk_focusPrev]
   * [tk_focusFollowsMouse]
   * [tk_menuSetFocus]

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[Tk syntax help] -
[Arts and Crafts of Tcl-Tk Programming] -
[Category Command], part of the [Tk] package.