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dxdiff(1X)							    dxdiff(1X)

NAME
       dxdiff - DECwindows visual differences program

SYNOPSIS
       dxdiff [ flags ] [ file1 file2 ]

PARAMETERS
       Specifies  the  two  files that are to be opened at startup.  If you do
       not specify any file names, dxdiff lets you specify files after it  has
       started up.

FLAGS
       Specifies  the color of the window's border (color displays only).  The
       default is black.  Specifies  the  color	 of  the  window's  background
       (color  displays	 only).	  The default is white.	 Specifies the display
       screen on which dxdiff displays its window.  If the display  option  is
       not specified, dxdiff uses the display screen specified by your DISPLAY
       environment variable.  The display option has the format	 hostname:num‐
       ber.  Using two colons (::) instead of one (:) indicates that DECnet is
       to be used for transport.  The default is :0.   For  more  information,
       see  X(1X).   This  option is the same as the -d option.	 Specifies the
       color of the text (color displays only).	 The default is black.	Speci‐
       fies   the  font	 used  as  the	output	font.	The  default  font  is
       times_bold12.  Specifies the width, length, and location of the	dxdiff
       window.	 If  the geometry option is not specified, dxdiff uses default
       values.	The geometry option has the format [widthxlength][{+-}x{+-}y].
       For  more  information  about  the screen coordinate system, see X(1X).
       Disables linked vertical scrolling.  Enables linked vertical scrolling.
       This  is	 the  default.	 Disables  linked horizontal scrolling Enables
       linked horizontal scrolling. This is the default.  Enables the  display
       of  filled  polygons  to	 connect areas of different text.  This is the
       default.	 Enables the display of lines to connect  areas	 of  different
       text.   Disables	 the display of line numbers in the difference region.
       Enables the display of line numbers in the difference region.  This  is
       the  default.   Specifies  the foreground color for the line numbers in
       the difference box.  The default is black.

DESCRIPTION
       The dxdiff application does a line-by-line comparison of two files  and
       displays	 the  differences between them.	 The contents of the two files
       are displayed in two text regions on either side of a  central  differ‐
       ence  region.  The differences between the files are displayed as high‐
       lighted text.  The differences are connected by lines or	 filled	 poly‐
       gons across the central difference region.  Line numbers are optionally
       displayed at each end of the difference lines, to show where  the  dif‐
       ferences	 occur	within	the  files.  Note that the files must be ASCII
       text files.

MENUS
       The dxdiff window contains the following menus:

       File Options Differences Help

   File Menu
       The dxdiff File menu contains the following menu items:	Calls  up  two
       Open...	dialog	boxes,	to allow you to specify the two files that you
       want to compare.	 The dialog boxes are  labeled	Left  File  and	 Right
       File.   You  must select one file from each dialog box.	Exits the cur‐
       rent dxdiff session.  If the session is the  original  one,  all	 other
       dxdiff sessions and windows are closed.

   Options Menu
       The  Options  menu  contains  the  following menu items: The default is
       linked vertical scrolling.  When linked vertical scrolling  is  on  and
       you  scroll  one	 of the files, the other file is scrolled with it line
       for line.  When linked vertical scrolling  is  off,  one	 file  can  be
       scrolled	 independently	of the other one.  The default is linked hori‐
       zontal scrolling.  When linked  horizontal  scrolling  is  on  and  you
       scroll  one  of	the  files,  the other file is scrolled with it.  When
       linked horizontal scrolling is off, one file can be  scrolled  indepen‐
       dently  of  the other one.  Displays either lines or filled polygons to
       connect the differences across the  difference  box.   The  default  on
       startup	is for filled polygons to be displayed.	 Displays line numbers
       at each end of the lines that connect the differences.  The default  is
       to  display  line  numbers.  If dxdiff cannot find a suitable font size
       for displaying the line numbers, this item is disabled.

   Differences Menu
       The Differences menu contains the following items: Displays the differ‐
       ences  between  the  two	 currently selected files.  Opens a new dxdiff
       window to display the differences between the  two  currently  selected
       files.  The existing dxdiff window remains on the screen for reference.

   Help Menu
       The Help Menu button invokes a help window that provides information on
       dxdiff.

X DEFAULTS
       The dxdiff application uses the values in the .Xdefaults file when  you
       logged  in and uses the appropriate resource specification to customize
       the appearance or characteristics of its displayed dxdiff window.   The
       format for a resource specification in the .Xdefaults file is:

       [*name*]resource:   value  Specifies  the  application name or the name
       string that restricts the resource assignment to that application or to
       a  component of an application.	If this argument is not specified, the
       resource assignment is globally available to all X applications.	 Spec‐
       ifies  the resource.  Specifies the value that is to be assigned to the
       resource.

       For more information, see X(1X).

       Because each toolkit-based application can consist of a combination  of
       widgets	(for example, push buttons and a scroll bar), you can form the
       name string by adding widget class and name identifiers to the  string.
       For  further  information  about adding class and name identifiers, see
       X(1X).

       For dxdiff, the available class identifiers are:

       XmLabel XmPushButton XmRowColumn XmScrollbar XmText

       For dxdiff, the available name identifiers are: The  application	 class
       name The application name The entire display, which includes all of the
       components of the window The main menu bar, which  includes  the	 pull-
       down  menus  The	 file  selection dialog box for selecting a file to be
       displayed in the left text display region The file selection dialog box
       for  selecting  a file to be displayed in the right text display region
       The File pull-down menu The Open button on the File menu The Exit  but‐
       ton  on	the  File  menu The Options pull-down menu The Linked Vertical
       Scrolling On/Off button on  the	Options	 menu  The  Linked  Horizontal
       Scrolling  On/Off  button  on  the  Options  menu  The Display Diffs As
       Lines/Filled Polygons button on the Options menu The Display Line  Num‐
       bers  button  on the Options menu The Differences pull-down menu The Do
       Differences button on the Differences menu The Do  Differences  In  New
       button  on the Differences menu The text region display, which includes
       both the left and the right text display regions, each of which include
       the  file  name	bars, the vertical scroll bars, the push button region
       and the text panes The region where the lines  connecting  the  differ‐
       ences  are  displayed The file name bars at the top of each text region
       The vertical scroll bars The region where the file  contents  are  dis‐
       played The push button region at the bottom of each text display region
       The Next Diff push button The Prev Diff push button

       In addition to the general resources listed  in	X(1X),	the  resources
       available  for dxdiff are: Enable or disable linked vertical scrolling.
       The default is on.  Enable or disable linked horizontal scrolling.  The
       default	is  on.	 Enable or disable display of line numbers in the dif‐
       ference region.	The default is on.  Enable or disable use of lines  to
       connect	areas  of  different text.  The default is off.	 If drawing of
       lines is disabled, filled polygons are used.   Specify  the  foreground
       color for line numbers in the difference box.

EXAMPLES
       To change the background color of the dxdiff text regions, add the fol‐
       lowing entry to your .Xdefaults file:

	      dxdiff*textdisplay*background:  blue To  change  the  background
	      color of the push button region at the bottom of the window, add
	      the following entry to your .Xdefaults file:

	      dxdiff*displaymenu*background:   red

FILES
RELATED INFORMATION
       diff(1), mwm(1X), X(1X)

								    dxdiff(1X)
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