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-
-
-
-The MGR Window System HOWTO
-
-
-
-----
-
-!!!The MGR Window System HOWTO
-
-!!Vincent Bromanv0.1, 1996-05-30
-
-
-----
-''Information on the installation, configuration and running of the MGR Window
-System. ''
-----
-
-
-__Archived Document Notice:__ This document has been archived by the LDP
-because it does not apply to modern Linux systems. It is no longer
-being actively maintained.
-
-
-
-
-!!1. This HOWTO
-
-
-*1.1 Archiving
-
-*1.2 Authentication
-
-*1.3 Credit for the HOWTO
-
-
-
-
-
-!!2. What is the MGR window system?
-
-
-*2.1 Function
-
-*2.2 Requirements
-
-*2.3 How do MGR, X11, and 8.5 compare?
-
-
-
-
-
-!!3. Installing MGR
-
-
-
-
-!!4. Running MGR
-
-
-*4.1 Applications not aware of MGR
-
-*4.2 MGR Applications (clients) distributed with the server
-
-*4.3 MGR-aware clients distributed separately, see "SUPPORT" file
-
-
-
-
-
-!!5. Programming for MGR
-
-
-
-
-!!6. More documentation
-
-
-
-
-!!7. Credit for MGR
-----
-
-!!1. This HOWTO
-
-
-
-
-Copyright Vincent Broman 1995.
-Permission granted to make and distribute copies of this HOWTO
-under the conditions of the GNU General Public License.
-
-
-!!1.1 Archiving
-
-
-
-This HOWTO is archived in
-ftp://archimedes.nosc.mil/pub/Mgr/MGR-HOWTO.sgml,
-and also distributed from
-ftp://sunsite.unc.edu/pub/Linux/docs/HOWTO/MGR-HOWTO.
-In nearby directories the same document may appear in
-alternate formats like MGR-HOWTO.txt.
-
-!!1.2 Authentication
-
-
-
-Copies of the MGR distribution due to Broman should be accompanied
-by PGP signature files, signed by "Vincent Broman <broman@nosc.mil>".
-
-!!1.3 Credit for the HOWTO
-
-
-
-While Vincent Broman first put together this HOWTO,
-much of the information and text was obtained from FAQs,
-READMEs, etc. written by Stephen Uhler, Michael Haardt,
-and other public-spirited net-persons.
-Email corrections and suggested changes to broman@nosc.mil.
-
-
-Uhler was the main architect of __MGR__ -- see the Credit section below.
-
-
-
-----
-
-!!2. What is the MGR window system?
-
-
-
-
-!!2.1 Function
-
-
-
-__MGR__ (ManaGeR) is a graphical window system.
-The __MGR__ server
-provides a builtin window manager and windowed graphics terminal
-emulation on color and monochrome bitmap displays. __MGR__ is
-controlled by mousing pop-up menus, by keyboard interaction, and by
-escape sequences written on pseudo-terminals by client software.
-
-
-__MGR__ provides each client window with: termcap-style terminal
-control functions, graphics primitives such as line and circle
-drawing; facilities for manipulating bitmaps, fonts, icons, and
-pop-up menus; commands to reshape and position windows; and a
-message passing facility enabling client programs to rendezvous
-and exchange messages. Client programs may ask to be informed
-when a change in the window system occurs, such as a reshaped
-window, a pushed mouse button, or a message sent from another
-client program. These changes are called events.
-__MGR__ notifies a
-client program of an event by sending it an ASCII character string
-in a format specified by the client program. Existing
-applications can be integrated into the windowing environment
-without modification by having __MGR__ imitate keystrokes in response
-to user defined menu selections or other events.
-
-
-
-
-!!2.2 Requirements
-
-
-
-__MGR__ currently runs on Linux, FreeBSD,
-Sun 3/4 workstations with SunOS, and
-Coherent. Various older versions of __MGR__ run on the Macintosh,
-Atari ST MiNT, Xenix, 386-Minix, DEC 3100, and the 3b1 Unix-pc.
-Many small, industrial, real-time systems under OS9 or Lynx in Europe
-use (another variant of) Mgr for their user interface.
-The programming interface is implemented in C and in ELisp,
-although supporting clients written in other languages is quite
-easy.
-
-
-Running __MGR__ requires much less in resources than X, or even gcc.
-It does not have the user-base, software repertory, or high-level
-libraries of X or MS-Windows, say, but it is quite elegant
-and approachable.
-
-
-It has been said that __MGR__ is to X as Unix was to Multics.
-
-
-
-
-!!2.3 How do MGR, X11, and 8.5 compare?
-
-
-
-__MGR__ consists of a server with builtin window manager and terminal
-emulator, and clients which run in this terminal emulator and use it
-to communicate with the server. No resource multiplexing is done.
-
-
-X11 consists of a server and clients, which usually connect to the
-server using a socket. All user visible things like terminal
-emulators, window managers etc are done using clients. No resource
-multiplexing is done.
-
-
-8.5, the Plan 9 window system, is a resource multiplexer, as each
-process running in a window can access /dev/bitblt,
-/dev/mouse and
-/dev/kbd in its own namespace. These are multiplexed to the
-/dev/bitblit, /dev/mouse and /dev/kbd
-in the namespace of 8.5.
-This approach allows one to run 8.5 in an 8.5 window,
-a very clean design. 8.5 further has an integrated window manager
-and terminal emulator.
-
-
-
-----
-
-!!3. Installing MGR
-
-
-The latest source distribution can be FTPed from the directory
-ftp://archimedes.nosc.mil/pub/Mgr/69
-or Mosaiced from http://archimedes.nosc.mil/Mgr/69.
-The same should be found at
-ftp://sunsite.unc.edu/pub/Linux/apps/MGR and its mirrors.
-Older versions of this distribution
-from Haardt can be found on tsx-11.mit.edu and perhaps elsewhere.
-Pre-Linux versions of __MGR__ from Uhler and others have been found at
-ftp://bellcore.com/pub/mgr, but I think they are gone now.
-I have saved a copy of everything about __MGR__ seen on the Internet,
-but I am not aware of anything weighty
-that is missing from this Linux/Sun distribution.
-__MGR__ has been through a lot of versions and releases,
-but the current *Linux* version number is .69. This version number
-could jump to 1.0 when stable 256-color VGA code for Linux appears
-(for more than one video card type).
-RCS version numbers have increased from Bellcore's 4.3 up to our 4.13 now.
-
-
-Required tools to build this distribution of __MGR__ are m4 (GNU, or
-perhaps another supporting the -D option), make (GNU, or perhaps
-another supporting include) and *roff for the docs. Also sh,
-awk, and POSIX install. Binary distributions are not assembled often
-so you need an ANSI C compiler environment, e.g. gcc.
-
-
-A Linux installation requires Linux .99.10 or better
-(1.2.13 is what I actually test on now),
-an HGC, EGA, VGA, or SVGA graphics card, and a mouse. Mouses supported
-are: serial Microsoft mouse, serial !MouseSystems 3 and 5 byte
-mouse, serial MMSeries mouse, serial Logitech mouse, PS/2 mouse,
-or a bus mouse.
-With Buckey (Meta) hot keys enabled, even a mouseless system could
-do a certain amount of useful work under __MGR__.
-The VGA 640x480 monochrome graphics mode is
-supported out of the box, as is 640x350 and 640x200. To run
-800x600, or other modes that your BIOS can initialize and which
-do not require bank-switching, you need to run a small program
-(supplied as src/vgamisc/regs.exe)
-under DOS or an emulator to read the VGA registers
-and write a header file which you place in the
-directory src/libbitblit/linux,
-so that it can be #include'd
-by the vga.c file there.
-Samples of these files are supplied, but please create your own.
-Some VGA cards can use 128k
-windows, and these might run higher monochrome resolutions.
-
-
-The Linux-colorport code also runs in the standard
-320x200x256 color VGA mode without difficulty, because no bank switching
-is required. If you think of how few 64000 pixels is, you would
-realize this color mode is quite limited.
-Non-fast, but simple, bank-switching code has
-been added in version .65, and it works with a Tseng ET4000 card
-in 640x480x256 and 800x600x256 modes. The S3 code does not
-work in super VGA resolutions, yet. Supporting new super VGA cards
-requires writing one function to switch banks and then making sure that
-the desired screen mode can be initialized from a register dump,
-possibly with hand-tweaking. The Linux color servers generally
-mangle the screen fonts, necessitating use of restorefont as in runx.
-If someone were to extract the VGA initialization code out of X,
-this might make MGR work on a lot more color systems.
-
-
-Suns with SunOS 4.1.2+ and bwtwo, cgthree, or
-cgsix frame buffers are supported.
-Their speed handling color is good.
-Coherent installations should refer to the
-Versions/README.Coh file in the source distribution.
-Porting the
-latest-and-greatest __MGR__ to another POSIX-like system which
-provides select() and pty's and direct access to a bitmapped
-frame-buffer ought to be straightforward, just implementing the
-libbitblit library based on the sunmono or
-colorport code, say.
-
-
-If you want to install everything, you need 7 MB disk space for
-binaries, fonts, manual pages etc. The sources are about 4.5 MB,
-plus object files during compilation.
-
-
-Normally, /usr/mgr should be either the directory or a link to the
-directory where you install __MGR__ stuff for runtime use. Typing
-
-
-cd /usr/mgr; tar xvfz whereveryouputit/mgrusr-.69.tgz
-
-
-and optionally
-
-
-cd /usr/mgr; tar xvfz wherever/morefonts-.69.tgz
-
-
-will unpack these. The source can be put anywhere, e.g. typing
-
-
-cd /usr/src/local/mgr; tar xvfz wherever/mgrsrc-.69.tgz
-
-
-to unpack the sources from archimedes.nosc.mil.
-
-
-The source tree can be compiled from one top-level Makefile which
-invokes lower-level Makefiles, all of which "include"
-a "Configfile"
-at the top level. The Configfile is created by an interactive sh
-script named Configure, which asks you questions,
-then runs m4 on a Configfile.m4.
-So you type something like this:
-
-
-
-
-
-chdir /usr/src/local/mgr
-sh ./Configure
-make first
-make depend
-make install
-make clean
-
-
-
-
-It might be wise, before running make, to eyeball the Configfile
-generated by the Configure script, checking that it looks reasonable.
-(At least one m4 poops out (Sun /usr/bin/m4),
-creating a very short Configfile.
-If this happens, try hand editing a copy of Configfile.sun or
-Configfile.lx)
-One can also make all in any directory with a Makefile
-as soon as the libraries have been compiled and installed.
-The server, libraries, and some clients have been linted, but several
-clients are K&R C code that generates many compiler warnings.
-
-
-Several flags in MGRFLAGS can be added/omitted in the Configfile
-to change some
-optional features in the server, viz:
-
-; __-DWHO__:
-
-muck utmp file so "who" works
-; __-DVI__:
-
-code for clicking the mouse in vi moving the cursor
-; __-DDEBUG__:
-
-enable debugging output selectable with -d options.
-; __-DFASTMOUSE__:
-
-XOR the mouse track
-; __-DBUCKEY__:
-
-for hot-key server commands without mousing
-; __-DPRIORITY__:
-
-for priority window scheduling instead of
-round-robin; the active window gets higher priority
-; __-DCUT__:
-
-for cut/paste between windows and a global snarf buffer
-; __-DMGR_ALIGN__:
-
-forces window alignment for fast scrolling (monochrome)
-; __-DKILL__:
-
-kills windows upon tty i/o errors
-; __-DSHRINK__:
-
-use only some of the screen ($MGRSIZE in environment)
-; __-DNOSTACK__:
-
-don't permit event stacking
-; __-DBELL__:
-
-audibly ring the bell
-; __-DKBD__:
-
-read mgr input from the sun kbd, instead of stdin.
-This permits redirection of console msgs to a window.
-; __-DFRACCHAR__:
-
-fractional character movement for proportional fonts
-; __-DXMENU__:
-
-extended menu stuff (experimental)
-; __-DMOVIE__:
-
-movie making extension which logs all operations to a
-file for later replay -- not quite working under Linux
-; __-DEMUMIDMSBUT__:
-
-Emulate a missing middle mouse button by chording
-
-Not all combinations of these options have been tested on all systems.
-
-
-The BITBLITFLAGS macro should contain -DBANKED if you're trying
-out the super VGA color.
-
-
-C code for the static variables in the server containing icons and fonts
-is generated by a translator from icon and font files.
-
-
-Not all the clients are compiled and installed by the Makefiles.
-Clients found under src/clients having capitalized names or
-not compiled by the supplied Makefiles may have problems compiling
-and/or running, but they may be interesting to hack on.
-Most of the screen drivers found under the libbitblit directory are
-of mainly archeological interest. Grave robbing can be profitable.
-
-
-At some point check that your /etc/termcap and/or
-terminfo file
-contain entries for __MGR__ terminals such as found in the misc
-directory. If all your software checks $TERMCAP in the environment,
-this is not needed, as long as you run eval `set_termcap`
-in each window.
-
-
-__MGR__ works better if run setuid root, because it wants to chown
-ptys and write in the utmp file. This helps the ify iconifier
-client work better and the event passing mechanism be more secure.
-On Linux, root permissions are ''required'' in order to do in/out on the
-screen device. Otherwise, you decide whether to trust it.
-
-
-In versions around .62 there are troubles on the Sun with using
-the csh as the default shell. Programs seem to run in a different
-process group than the foreground process group of the window's pty,
-in contradiction to man pages and posix specs.
-There is no trouble with bash, sh, or rc. Ideas why?
-
-
-
-----
-
-!!4. Running MGR
-
-
-The only file ''required'' in an __MGR__ installation is the server
-itself. That would give you terminal emulator windows with shells
-running in them and cutting and pasting with the mouse,
-but no nice clocks, extra fonts, fancy graphics,
-etc. Depending on options, a monochrome server needs about 200K of RAM
-plus dynamic space for windows, bitmaps, etc.
-
-
-If /usr/mgr/bin is in your PATH,
-then just type "mgr" to start up.
-After enjoying the animated startup screen, press any key.
-When the hatched background and mouse pointer appear, hold down
-the left mouse button, highlight the "new window" menu item, and
-release the button. Then drag the mouse from corner to corner
-where you want a window to appear. The window will have your
-default shell running in it. Hold down the left mouse button over
-an existing window to see another menu for doing things to that
-window. Left-clicking on an obscured window raises it to the top.
-The menu you saw that pops-up over the empty background
-includes the quit command.
-For people with a two button mouse:
-press both buttons together to emulate the missing middle button
-used by some clients.
-
-
-The quit submenu includes the "really quit" option,
-a suspend option which should only be used if you run a
-job-control shell, and a screen saver and locker option, which
-waits for you to type your login password when you come back
-to your machine.
-
-
-When trying to run __MGR__, if you get:
-
-; __can't find the screen__:
-
-make sure you have a /dev entry for your display device,
-e.g. on
-a Sun /dev/bwtwo0. If not, as root cd to /dev, and type
-"MAKEDEV bwtwo0". Otherwise, you might need the
--S/dev/bwtwo0
-or (on Linux) the -S640x480 command line option when starting mgr.
-On Linux, you might also make sure that /usr/mgr/bin/mgr was
-installed setuid root.
-
-
-
-; __can't find the mouse__:
-
-make sure /dev/mouse exists, usually as a symbolic link to the
-real device name for your mouse. If you haven't permission to
-write in /dev, then something like a -m/dev/cua0
-option can be
-given when starting mgr. Also, make sure you've supplied the
-right mouse protocol choice when you configured mgr. The mouse
-may speak Microsoft, even if that is not the brand name.
-
-
-
-; __can't get a pty__:
-
-make sure all of /dev/
[[tp
]ty[[pq]?
-are owned by root, mode 666,
-and all programs referenced with the "shell" option in
-your .mgrc startup file (if any) exist and are executable.
-
-
-
-; __none but the default font__:
-
-make sure __MGR__ is looking in the right
-place for its fonts. Check the Configfile in the source or
-see whether a -f/usr/mgr/font option to mgr fixes the problem.
-
-
-
-; __completely hung (not even the mouse track moves)__:
-
-login to your machine from another terminal (or rlogin) and kill the
-mgr process.
-A buckey-Q key can quit __MGR__ if the keyboard still works.
-
-
-
-
-
-!!4.1 Applications not aware of MGR
-
-
-
-Any tty-oriented application can be run in an __MGR__ window
-without further ado. Screen-oriented applications using
-termcap or curses can get the correct number of lines and
-columns in the window by your using shape(1)
-to reshape the window or using
-set_termcap(1) to obtain the correct termcap entry.
-
-
-
-
-!!4.2 MGR Applications (clients) distributed with the server
-
-
-
-
-
-; __bdftomgr__:
-
-converts some BDF fonts to MGR fonts
-; __browse__:
-
-an icon browser
-; __bury__:
-
-bury this window
-; __c_menu__:
-
-vi menus from C compiler errors
-; __clock__:
-
-digital display of time of day
-; __clock2__:
-
-analog display of time of day
-; __close__:
-
-close this window, iconify
-; __color__:
-
-set the foreground and background color for text in this window
-; __colormap__:
-
-read or write in the color lookup table
-; __cursor__:
-
-change appearance of the character cursor
-; __cut__:
-
-cut text from this window into the cut buffer
-; __cycle__:
-
-display a sequence of icons
-; __dmgr__:
-
-crude ditroff previewer
-; __fade__:
-
-fade a home movie script from one scene to another
-; __font__:
-
-change to a new font in this window
-; __gropbm__:
-
-a groff to PBM driver using Hershey fonts
-; __hpmgr__:
-
-hp 2621 terminal emulator
-; __ico__:
-
-animate an icosahedron or other polyhedron
-; __iconmail__:
-
-notification of mail arrival
-; __iconmsgs__:
-
-message arrival notification
-; __ify__:
-
-iconify and deiconify windows
-; __loadfont__:
-
-load a font from the file system
-; __maze__:
-
-a maze game
-; __mclock__:
-
-micky mouse clock
-; __menu__:
-
-create or select a pop-up menu
-; __mgr__:
-
-bellcore window system server and window manager
-; __mgrbd__:
-
-boulder-dash game
-; __mgrbiff__:
-
-watch mailbox for mail and notify
-; __mgrload__:
-
-graph of system load average
-; __mgrlock__:
-
-lock the console
-; __mgrlogin__:
-
-graphical login controller
-; __mgrmag__:
-
-magnify a part of the screen, optionally dump to file
-; __mgrmail__:
-
-notification of mail arrival
-; __mgrmode__:
-
-set or clear window modes
-; __mgrmsgs__:
-
-message arrival notification
-; __mgrplot__:
-
-Unix "plot" graphics filter
-; __mgrsclock__:
-
-sandclock
-; __mgrshowfont__:
-
-browse through mgr fonts
-; __mgrsketch__:
-
-a sketching/drawing program
-; __mgrview__:
-
-view mgr bitmap images
-; __mless__:
-
-start up less/more in separate window, menu added for less
-; __mnew__:
-
-startup up any program in a separate, independent window
-; __mphoon__:
-
-display the current phase of the moon
-; __mvi__:
-
-start up vi in a separate window, with mouse pointing
-; __oclose__:
-
-(old) close a window
-; __omgrmail__:
-
-(old) notification of mail arrival
-; __pbmrawtomgr, pgmrawtomgr, ppmrawtomgr__:
-
-convert raw PBM/PGM/PPM image files to mgr bitmap format
-; __pbmstream__:
-
-split out a stream of bitmaps
-; __pbmtoprt__:
-
-printer output from PBM
-; __pgs__:
-
-ghostscript patch and front end, a PS viewer
-; __pilot__:
-
-a bitmap browser, or image viewer
-; __resetwin__:
-
-cleanup window state after client crashes messily
-; __rotate__:
-
-rotate a bitmap 90 degrees.
-; __screendump__:
-
-write graphics screen dump to a bitmap file
-; __set_console__:
-
-redirect console messages to this window
-; __set_termcap__:
-
-output an appropriate TERM and TERMCAP setting
-; __setname__:
-
-name a window, for messages and iconifying
-; __shape__:
-
-reshape this window
-; __square__:
-
-square this window
-; __squeeze__:
-
-compress mgr bitmap using run-length encoding
-; __startup__:
-
-produce a skeleton startup file for current window layout
-; __texmgr__:
-
-TeX dvi file previewer
-; __text2font, font2text__:
-
-convert between mgr font format and text dump
-; __unsqueeze__:
-
-uncompress mgr bitmap using run length encoding
-; __vgafont2mgr, mgrfont2vga__:
-
-convert between mgr font format and VGA
-; __window_print__:
-
-print an image of a window
-; __zoom__:
-
-an icon editor
-; __bounce, grav, grid, hilbert, mgreyes, stringart, walk__:
-
-graphics demos
-
-
-
-
-
-!!4.3 MGR-aware clients distributed separately, see "SUPPORT" file
-
-
-
-
-
-; __calctool__:
-
-on-screen calculator
-; __chess__:
-
-frontend to /usr/games/chess
-; __gnu emacs__:
-
-editor with lisp/term/mgr.el mouse & menu support
-; __gnuplot__:
-
-universal scientific data plotting
-; __metafont__:
-
-font design and creation
-; __origami__:
-
-folding editor
-; __pbmplus__:
-
-portable bitmap format conversions, manipulations
-; __plplot__:
-
-slick scientific data plotting
-
-
-
-The Emacs support in misc/mgr.el and misc/mailcap
-includes very usable MIME support, via Rmail and metamail.
-
-
-A general image viewer could be cobbled together from pilot
-and the netPBM filters, but I have not taken the time to do it.
-
-
-
-----
-
-!!5. Programming for MGR
-
-
-The __MGR__ programmers manual, the C language applications interface,
-is found in the doc directory in troff/nroff form. It covers
-general concepts, the function/macro calls controlling the server,
-a sample application, with an index and glossary.
-
-
-Porting client code used with older versions of __MGR__ sometimes
-requires the substitution of
-
-
-#include <mgr/mgr.h>
-
-
-for
-
-
-#include <term.h>
-#include <dump.h>
-
-
-and clients using old-style B_XOR, B_CLEAR, et al instead of
-BIT_XOR, BIT_CLR, et al can be accommodated by writing
-
-
-#define OLDMGRBITOPS
-#include <mgr/mgr.h>
-
-
-
-
-Compiling client code generally requires compiler options like
-the following.
-
-
--I/usr/mgr/include -L/usr/mgr/lib -lmgr
-
-
-
-
-One can get some interactive feel for the __MGR__ server functions by
-reading and experimenting with the mgr.el terminal driver for GNU
-Emacs which implements the __MGR__ interface library in ELisp.
-
-
-The usual method of inquiring state from the server has the
-potential of stumbling on a race condition if the client also
-expects a large volume of event notifications. The problem arises
-if an (asynchronous) event notification arrives when a
-(synchronous) inquiry response was expected. If this arises in
-practice (unusual) then the __MGR__ state inquiry functions would have
-to be integrated with your event handling loop.
-
-
-The only major drawing function missing from the __MGR__ protocol, it
-seems, is an area fill for areas other than upright rectangles.
-There is new code for manipulating the global colormap, as well as
-(advisory) allocation and freeing of color indices owned by windows.
-
-
-If you are thinking of hacking on the server, you can find the mouse
-driver in mouse.* and mouse_get.*,
-the grotty parts of the keyboard
-interface in kbd.c, and the interface to the display in the
-src/libbitblit/* directories. The main procedure, much
-initialization, and the top level input loop are in mgr.c, and the
-interpretation of escape sequences is in put_window.c.
-
-
-
-----
-
-!!6. More documentation
-
-
-The programmer's manual is essential for concepts.
-
-
-Nearly all the clients supplied come with a man page which is installed
-into /usr/mgr/man/man1 or man6.
-Other useful man pages are bitblit.3, font.5, and
-bitmap.5.
-There is some ambiguity in the docs in distinguishing the
-internal bitmap format found in your frame-buffer and the external
-bitmap format found in files, e.g. icons.
-
-
-The mgr.1 man page covers command line options, commands in
-the ~/.mgrc startup file, mouse and menu interaction with the server,
-and hot-key shortcuts available on systems with such hot-keys.
-
-
-Many of the fonts in /usr/mgr/font/* are described to some
-extent in /usr/mgr/font/*.txt, e.g. /usr/mgr/font/FONTDIR.txt
-gives X-style font descriptions for the fonts obtained
-in .bdf format. Font names end in WxH, where W and H
-are the
-decimal width and height in pixels of each character box.
-
-
-
-----
-
-!!7. Credit for MGR
-
-
-Stephen Uhler, with others working at Bellcore, was the original
-designer and implementer of __MGR__, so Bellcore has copyrighted much
-of the code and documentation for __MGR__ under the following conditions.
-
-
-
-
-* Permission is granted to copy or use this program, EXCEPT that it
-* may not be sold for profit, the copyright notice must be reproduced
-* on copies, and credit should be given to Bellcore where it is due.
-
-
-
-One required showing of the copyright notice is the startup title screen.
-
-
-Other credits to:
-
-
-* Stephen Hawley for his wonderful icons.
-*
-
-* Tommy Frandsen for the VGA linux library.
-*
-
-* Tom Heller for his Gasblit library.
-*
-
-* Andrew Haylett for the Mouse driver code.
-*
-
-* Dan !McCrackin for his gasblit->linux patches.
-*
-
-* Dave Gymer, dgymer@gdcarc.co.uk, for the Startrek effect fix.
-*
-
-* Alex Liu for first releasing a working Linux version of __MGR__.
-*
-
-* Lars Aronsson (aronsson@lysator.liu.se) for text2font and
-an ISO8859-1 8-bit font.
-*
-
-* Harry Pulley (hcpiv@grumpy.cis.uoguelph.ca,
-hcpiv@snowhite.cis.uoguelph.ca) for the Coherent port.
-*
-
-* Vance Petree & Grant Edwards & Udo Munk for their work on Hercules.
-*
-
-* Udo Munk for his work on serial mouse initialization & select.
-*
-
-* Norman Bartek & Hal Snyder at Mark Williams Co. for their help
-with some bugs & with Coherent device drivers.
-*
-
-* Extra thanks to Zeyd Ben Halim for lots of helpful patches,
-especially the adaptation of selection.
-*
-
-* Bradley Bosch, brad@lachman.com, for lots of patches from his 3b1
-port, which fix bugs and implement new and desirable features.
-*
-
-* Andrew Morton, applix@runxtsa.runx.oz.au, who first wrote the
-cut-word code.
-*
-
-* Kapil Paranjape, kapil@motive.math.tifr.res.in, for the EGA
-support.
-*
-
-* Michael Haardt for MOVIE support fixes, bug fixes, separation of the
-libbitblit code into output drivers, expansion of the libmgr, and
-origami folding of the code.
-*
-
-* Yossi Gil for many fonts.
-*
-
-* Carsten Emde, carsten@thlmak.pr.net.ch, for mphoon.
-*
-
-* Vincent Broman for middle mouse-button emulation, linting, Sun cgsix
-support, VGA colormap acess, integration of the sunport code
-into Haardt's layering scheme, font gathering, the screen saver,
-and continued maintenance.
-*
-
-* Kenneth Almquist, ka@socrates.hr.att.com, for helpful bug reports.
-*
-
-* Tim Pierce, twpierce@midway.uchicago.edu, for the port to FreeBSD
-2.0R with Trident VGA.
-*
-
-
-
-All bitmap fonts from any source are strictly public domain in the
-USA. The 583 fixed-width fonts supplied with __MGR__ were obtained
-from Uhler, the X distribution, Yossi Gil, and elsewhere.
-The Hershey vector fonts and the code for rendering them
-are probably freely redistributable
.
-
-
-
-----
+Describe
[HowToMGRHOWTO
] here
.
