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message(n)		     Tk Built-In Commands		    message(n)

______________________________________________________________________________

NAME
       message - Create and manipulate message widgets

SYNOPSIS
       message pathName ?options?

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

       See the options manual entry for details on the standard options.

WIDGET-SPECIFIC OPTIONS
       [-aspect 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.
       [-justify 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 pro‐
       vide 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  rec‐
       tangular 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 ver‐
       tical span of the window.  [-width 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.
_________________________________________________________________

DESCRIPTION
       The  message  command creates a new window (given by the pathName argu‐
       ment)  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 pathName
       argument.  At the time this command is invoked, there must not exist  a
       window named pathName, but pathName'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	 char‐
       acters  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  dis‐
       played  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.

WIDGET COMMAND
       The  message  command creates a new Tcl command whose name is pathName.
       This command may be used to invoke various operations  on  the  widget.
       It has the following general form:
	      pathName option ?arg arg ...?
       Option  and  the args determine the exact behavior of the command.  The
       following commands are possible for message widgets:

       pathName cget option
	      Returns the current value of the configuration option  given  by
	      option.	Option may have any of the values accepted by the mes‐
	      sage command.

       pathName configure ?option? ?value option value ...?
	      Query or modify the configuration options of the widget.	If  no
	      option is specified, returns a list describing all of the avail‐
	      able options for pathName (see Tk_ConfigureInfo for  information
	      on  the  format  of  this list).	If option is specified with no
	      value, then the command returns a list describing the one	 named
	      option (this list will be identical to the corresponding sublist
	      of the value returned if no option is  specified).   If  one  or
	      more option-value pairs are specified, then the command modifies
	      the given widget option(s) to have the given value(s);  in  this
	      case  the	 command returns an empty string.  Option may have any
	      of the values accepted by the message command.

DEFAULT BINDINGS
       When a new message is created, it has no default event  bindings:  mes‐
       sages are intended for output purposes only.

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

KEYWORDS
       message, widget

Tk				      4.0			    message(n)
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