.! .! This is a RUNOFF source file that produces a VMS-style HELP library .! for the XDVI program. .! .! This file was created by hand-converting XDVI.MAN. The internal date .! in the XDVI.MAN file was "27 March 1990". If you improve this file, .! please let me know. Pete Siemsen, siemsen@usc.edu .! .! Merged with patchlevel 8.001 help file for VMS by Scott Allendorf. .! .NO PAGING .NO FLAGS ALL .RIGHT MARGIN 70 .LITERAL ! ! DO NOT EDIT THIS FILE. It was produced by passing a .RNH file through ! RUNOFF. Edit the .RNH file instead. ! .END LITERAL .LEFT MARGIN 1 .INDENT -1 1 XDVI .BREAK XDVI is a program which runs under the DECWindows system. It is used to preview DVI files, such as those produced by TeX and LaTeX. .SKIP XDVI has the capability of displaying the file reduced by various (integer) factors, and also has a "magnifying glass" which allows one to see a small part of the unshrunk image momentarily. .SKIP Before displaying any page or part thereof, XDVI checks to see if the DVI file has changed since the last time it was displayed. If this is the case, XDVI will reinitialize itself for the new DVI file. For this reason, exposing parts of the XDVI window while TeX is running should be avoided. This feature allows you to preview many versions of the same file while running XDVI only once. .SKIP Format: .SKIP .INDENT +3 XDVI [Options] dvi_file .INDENT -1 2 Options .BREAK In addition to specifying the .DVI file (with or without the .DVI), XDVI supports the following command line options. If the option begins with a "+" instead of a "-", the option is restored to its default value. By default, these options can be set via the resource names given in the description of each option. .INDENT -1 3 + .BREAK + .SKIP Specifies the first page to show. If + is given without a number, the last page is assumed; the first page is the default. .INDENT -1 3 -altfont .BREAK -altfont .SKIP Declares a default font to use when the font in the DVI file cannot be found. This is useful, for example, with PostScript fonts. .SKIP The resource name is ".altFont". .INDENT -1 3 -background .BREAK -background .SKIP Same as -bg. .INDENT -1 3 -bd .BREAK -bd .SKIP Determines the color of the window border. .SKIP The resource name is ".borderColor". .INDENT -1 3 -bg .BREAK -bg .SKIP Determines the color of the background. .SKIP The resource name is ".background". .INDENT -1 3 -bordercolor .BREAK -bordercolor .SKIP Same as -bd. .INDENT -1 3 -borderwidth .BREAK -borderwidth .SKIP Same as -bw. .INDENT -1 3 -bw .BREAK -bw .SKIP Specifies the width of the border of the window. .SKIP The resource name is ".borderWidth". .INDENT -1 3 -copy .BREAK Always use the copy operation when writing characters to the display. This option may be necessary for correct operation on a color display, but overstrike characters will be incorrect. .SKIP The resource name is ".copy". .INDENT -1 3 -cr .BREAK -cr .SKIP Determines the color of the cursor. The default is the color of the page border. .SKIP The resource name is ".cursorColor". .INDENT -1 3 -density .BREAK -density .SKIP Determines the density used when shrinking bitmaps for fonts. A higher value produces a lighter font. The default value is 40. .SKIP The resource name is ".densityPercent". .INDENT -1 3 -display .BREAK -display .SKIP Specifies the host, display, and screen to be used for displaying the DVI file. The display must be specified in the form node::display.screen. The default is obtained from the logical name "DECW$DISPLAY", which may be defined using the SET DISPLAY command. .INDENT -1 3 -fg .BREAK -fg .SKIP Determines the color of the text (foreground). .SKIP The resource name is ".foreground". .INDENT -1 3 -foreground .BREAK -foreground .SKIP Same as -fg. .INDENT -1 3 -geometry .BREAK -geometry .SKIP Specifies the initial geometry of the window. .SKIP The resource name is "*geometry". .INDENT -1 3 -hl .BREAK -hl .SKIP Determines the color of the page border. The default is the foreground color. .SKIP The resource name is ".highlight". .INDENT -1 3 -icongeometry .BREAK -icongeometry .SKIP Specifies the initial position for the icon. .SKIP The resource name is ".iconGeometry". .INDENT -1 3 -iconic .BREAK -iconic .SKIP Causes the XDVI window to start in the iconic state. The default is to start with the window open. .SKIP The resource name is ".iconic". .INDENT -1 3 -l .BREAK Causes the names of the fonts used to be listed. .SKIP The resource name is ".listFonts". .INDENT -1 3 -p .BREAK -p .SKIP Defines the size of the fonts to use, in pixels per inch. The default value is 300. .SKIP The resource name is ".pixelsPerInch". .INDENT -1 3 -paper .BREAK -paper .SKIP Specifies the size of the printed page. This may be of the form WxH (or WxHcm), where W is the width in inches (or cm) and H is the height in inches (or cm), respectively. There are also synonyms which may be used: us (8.5x11), usr (11x8.5), legal (8.5x14), foolscap (13.5x17), as well as the ISO sizes a1-a7, b1-b7, c1-c7, a1r-a7r (a1-a7 rotated), etc. The default size is 8.5 x 11 inches. .SKIP The resource name is ".paper". .INDENT -1 3 -margins .BREAK -margins .SKIP Specifies the size of both the top and side margins. This can be a decimal number, e.g., 1.5. XDVI determines the "home" position of the page within the window as follows. If the entire page fits in the window, then the margin settings are ignored. If, even after removing the margins from the left, right, top, and bottom, the page still cannot fit in the window, then the page is put in the window such that the top and left margins are hidden, and presumably the upper left-hand corner of the text on the page will be in the upper left-hand corner of the window. Otherwise, the text is centered in the window. See also `M' under the Keystrokes help entry. .SKIP The resource name is ".margins". .INDENT -1 3 -mgs[n] .BREAK -mgs[n] .SKIP Specifies the size of the window to be used for the "magnifying glass" for Button n. See the MOUSE ACTIONS section. Defaults are 200, 350, 600, 900, and 1200. .SKIP The resource name is ".magnifierSize[n]". .INDENT -1 3 -mgs .BREAK -mgs .SKIP Same as -mgs1. .INDENT -1 3 -rv .BREAK Causes the page to be displayed with white characters on a black background, instead of vice versa. .SKIP The resource name is ".reverseVideo". .INDENT -1 3 -s .BREAK -s .SKIP Defines the initial shrink factor. The default value is 3. .SKIP The resource name is ".shrinkFactor". .INDENT -1 3 -sidemargin .BREAK -sidemargin .SKIP Specifies the side margin (see -margins). .SKIP The resource name is ".sideMargin". .INDENT -1 3 -thorough .BREAK XDVI will usually try to ensure that overstrike characters (e.g., \notin) are printed correctly. On monochrome displays, this is always possible with one logical operation, either AND or OR. On color displays, however, this may take two operations, one to set the appropriate bits and one to clear other bits. If this is the case, then by default XDVI will instead use the copy operation, which does not handle overstriking correctly. The "thorough" option chooses the slower but more correct choice. See also -copy. .SKIP The resource name is ".thorough". .INDENT -1 3 -topmargin .BREAK -topmargin .SKIP Specifies the top and bottom margins (see -margins). .SKIP The resource name is ".topMargin". .INDENT -1 2 Keystrokes .BREAK Xdvi recognizes the following keystrokes when typed in its window. Each may optionally be preceded by a (positive or negative) number, whose interpretation will depend on the particular keystroke. Note that the keystrokes are case sensitive. .INDENT -1 3 q .BREAK Quits the program. Control-C and control-D will do this, too. .INDENT -1 3 n .BREAK Moves to the next page (or to the nth next page if a number is given). Synonyms are `f', Space, Return, and Line Feed. .INDENT -1 3 p .BREAK Moves to the previous page (or back n pages). Synonyms are `b', control-H, and Delete. .INDENT -1 3 g .BREAK Moves to the page with the given number. Initially, the first page is assumed to be page number 1, but this can be changed with the `P' keystroke. If no page number is given, then it goes to the last page. .INDENT -1 3 P .BREAK "This is page number n." This can be used to make the `g' keystroke refer to actual page numbers instead of absolute page numbers. .INDENT -1 3 Control-L .BREAK Redisplays the current page. .INDENT -1 3 ^ .BREAK Move to the "home" position of the page. This is normally the upper left-hand corner of the page, depending on the margins as described in the -margins option. .INDENT -1 3 u .BREAK Moves up two thirds of a window-full. .INDENT -1 3 d .BREAK Moves down two thirds of a window-full. .INDENT -1 3 l .BREAK Moves left two thirds of a window-full. .INDENT -1 3 r .BREAK Moves right two thirds of a window-full. .INDENT -1 3 c .BREAK Moves the page so that the point currently beneath the cursor is moved to the middle of the window. It also (gasp!) warps the cursor to the same place. .INDENT -1 3 M .BREAK Sets the margins so that the point currently under the cursor is the upper left-hand corner of the text in the page. Note that this command itself does not move the image at all. For details on how the margins are used, see the -margins option. .INDENT -1 3 s .BREAK Changes the shrink factor to the given number. If no number is given, the smallest factor that makes the entire page fit in the window will be used. (Margins are ignored in this computation.) .INDENT -1 3 S .BREAK Sets the density factor to be used when shrinking bitmaps. This should be a number between 0 and 100; higher numbers produce lighter characters. .INDENT -1 3 R .BREAK Forces the dvi file to be reread. This allows you to preview many versions of the same file while running XDVI only once. .INDENT -1 3 k .BREAK Normally when XDVI switches pages it moves to the home position as well. The `k' keystroke toggles a `keep-position' flag which, when set, will keep the same position when moving between pages. Also `0k' and `1k' clear and set this flag, respectively. .INDENT -1 2 Mouse_Actions .BREAK If the shrink factor is set to any number other than one, then clicking any mouse button will pop up a "magnifying glass" which shows the unshrunk image in the vicinity of the mouse click. This subwindow disappears when the mouse button is released. Different mouse buttons produce different sized windows, as indicated by the -mgs option. Moving the cursor while holding the button down will move the magnifying glass. .SKIP Also, the scrollbars (if present) behave in the standard X Window way: pushing Button 2 in a scrollbar moves the top or left edge of the scrollbar to that point and optionally drags it; pushing Button 1 moves the image up or right by an amount equal to the distance from the button press to the upper left-hand corner of the window; pushing Button 3 moves the image down or left by the same amount. Note that this is different than the way DECWindows normally defines the actions of the mouse buttons in scrollbars. .INDENT -1 2 Logical_Names .BREAK Some logical names can be defined to override the values defined when XDVI was compiled. .INDENT -1 3 DECW$DISPLAY .BREAK Unless the -display option is used on the command line, XDVI uses the logical name "DECW$DISPLAY" to specify which bit map display terminal to use. This logical name may be defined with the SET DISPLAY command. .INDENT -1 3 XDVIFONTS .BREAK The logical name "XDVIFONTS" determines the directory path(s) searched for fonts in the following manner. The string consists of one or more strings separated by slashes. In each such string, the substring "%f" is changed to the font name; "%d" is changed to the magnification; and "%p" is changed to the font family ("gf", "pk", or "pxl"). If no "%f" appears in the string, then the string ":%f.%d%p" is added on the end. .SKIP For example, if the string is "TEX$DISK:[TEX.FONTS.%d]%f.%p" and the font is cmr10 at 300dpi, then XDVI looks for TEX$DISK:[TEX.FONTS.300]CMR10.GF, TEX$DISK:[TEX.FONTS.300]CMR10.PK, and TEX$DISK:[TEX.FONTS.1500]CMR10.PXL, in that order. .SKIP If the first character of the "XDVIFONTS" logical name is a slash, then the system default directories are tried first. If the font is not found in the desired size, then XDVI will try to find the nearest size. If the font cannot be found at all, then XDVI will try to vary the point size of the font (within a certain range), and if this fails, then it will use the font specified as the alternate font (cf. -altfont). .INDENT -1 3 XDVISIZES .BREAK The logical name "XDVISIZES" must be set to indicate which sizes of fonts are available. It should consists of a list of numbers separated by slashes. If the list begins with a slash, the system default sizes are used, as well. Sizes are expressed in dots per inch; decimals may be used for "pxl" files: for example, a 300 dots per inch file magnified by half a step comes out to 1643 dots per five inches, which should be encoded as 328.6. The current default set of sizes is 300/328.6/360/432/518.4/622/746.4. .INDENT -1 2 Resource_Names .BREAK All of the command line options may be set via the resource names given in the descriptions of the options. This may be used to define a specific set of options as the default each time you run XDVI. To make use of this feature, create a file named DECW$XDEFAULTS.DAT in the same directory as the rest of your DECW*.DAT files. Include in this file the resource names and arguments of each of the options you wish to specify. For example: .SKIP .LITERAL XDvi.copy: off XDvi.thorough: on XDvi.shrinkFactor: 2 XDvi.margins: 0.95 XDvi*geometry: 1015x750+3+25 .END LITERAL .SKIP When XDVI is invoked, it would behave as if it had been invoked with the following command: .SKIP .LITERAL XDVI +copy -thorough -s 2 -margins 0.95 -geometry 1015x750+3+25 dvifile .END LITERAL .SKIP Specifying options on the command line will override any options specified via resource names in the DECW$XDEFAULTS.DAT file. .INDENT -1 2 Authors .BREAK .LITERAL Eric Cooper, CMU, did a version for direct output to a QVSS. Modified for X by Bob Scheifler, MIT Laboratory for Computer Science. Modified for X11 by Mark Eichin, MIT SIPB. Modified for VMS and DECWindows by Scott Allendorf, University of Iowa. Additional enhancements by many others. .END LITERAL