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Contents
module Tk
# Create and manipulate message widgets
#
# A message is a widget that displays a textual string.
#
# A message widget has three special features.
#
# First, it breaks up its string into lines in order to produce a given aspect
# ratio for the window.
# The line breaks are chosen at word boundaries wherever possible (if not even
# a single word would fit on a line, then the word will be split across
# lines). Newline characters in the string will force line breaks; they can be
# used, for example, to leave blank lines in the display.
#
# The second feature of a message widget is justification.
# The text may be displayed left-justified (each line starts at the left side
# of the window), centered on a line-by-line basis, or right-justified (each
# line ends at the right side of the window).
#
# The third feature of a message widget is that it handles control characters
# and non-printing characters specially.
# Tab characters are replaced with enough blank space to line up on the next
# 8-character boundary.
# Newlines cause line breaks.
# Other control characters (ASCII code less than 0x20) and characters not
# defined in the font are displayed as a four-character sequence \xhh where hh
# is the two-digit hexadecimal number corresponding to the character.
# In the unusual case where the font does not contain all of the characters in
# "0123456789abcdef\x" then control characters and undefined characters
# are not displayed at all.
class Message < Widget
include Cget, Configure
def self.tk_command; 'message'; end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems