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Message(3)	      User Contributed Perl Documentation	    Message(3)

       Tk::Message - Create and	manipulate Message widgets

       $message	= $parent->Message(?options?);

       -anchor	 -font	   -highlightthickness -takefocus
       -background    -foreground    -padx     -text
       -borderwidth   -highlightbackground     -pady	 -textvariable
       -cursor	 -highlightcolor     -relief   -width

       See Tk::options for details of the standard options.

       Name:	 aspect
       Class:	 Aspect
       Switch:	 -aspect
	   Specifies a non-negative integer value indicating desired aspect
	   ratio for the text.	The aspect ratio is specified as
	   100*width/height.  100 means	the text should	be as wide as it is
	   tall, 200 means the text should be twice as wide as it is tall, 50
	   means the text should be twice as tall as it	is wide, and so	on.
	   Used	to choose line length for text if width	option isn't
	   specified.  Defaults	to 150.

       Name:	 justify
       Class:	 Justify
       Switch:	 -justify
	   Specifies how to justify lines of text.  Must be one	of left,
	   center, or right.  Defaults to left.	 This option works together
	   with	the anchor, aspect, padX, padY,	and width options to provide a
	   variety of arrangements of the text within the window.  The aspect
	   and width options determine the amount of screen space needed to
	   display the text.  The anchor, padX,	and padY options determine
	   where this rectangular area is displayed within the widget's
	   window, and the justify option determines how each line is
	   displayed within that rectangular region.  For example, suppose
	   anchor is e and justify is left, and	that the message window	is
	   much	larger than needed for the text.  The the text will displayed
	   so that the left edges of all the lines line	up and the right edge
	   of the longest line is padX from the	right side of the window;  the
	   entire text block will be centered in the vertical span of the

       Name:	 width
       Class:	 Width
       Switch:	 -width
	   Specifies the length	of lines in the	window.	 The value may have
	   any of the forms acceptable to Tk_GetPixels.	 If this option	has a
	   value greater than zero then	the aspect option is ignored and the
	   width option	determines the line length.  If	this option has	a
	   value less than or equal to zero, then the aspect option determines
	   the line length.

       The Message method creates a new	window (given by the $widget argument)
       and makes it into a message widget.  Additional options,	described
       above, may be specified on the command line or in the option database
       to configure aspects of the message such	as its colors, font, text, and
       initial relief.	The message command returns its	$widget	argument.  At
       the time	this command is	invoked, there must not	exist a	window named
       $widget,	but $widget's parent must exist.

       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 doesn't contain all of the characters in
       ``0123456789abcdef\x'' then control characters and undefined characters
       are not displayed at all.

       The Message method creates a widget object.  This object	supports the
       configure and cget methods described in Tk::options which can be	used
       to enquire and modify the options described above.  The widget also
       inherits	all the	methods	provided by the	generic	Tk::Widget class.

       When a new message is created, it has no	default	event bindings:
       messages	are intended for output	purposes only.

       Tabs don't work very well with text that	is centered or right-
       justified.  The most common result is that the line is justified	wrong.

       message,	widget

perl v5.24.1			  2013-11-15			    Message(3)


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