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Ebook Gratuito: Dá para fazer em Shell?, com o Prof. Julio Neves

Servidor X grátis para Macs e Windows

Colaboração: Rubens Queiroz de Almeida

Data de Publicação: 29 de Dezembro de 1997

A empresa MicroImages Inc. está disponibilizando gratuitamente na Internet um servidor X para computadores Mac e Windows NT e 95.

O endereço para download é http://www.microimages.com/freestuf/mix.htm.

Este servidor X inclui o gerenciador de janelas twm, que pode ser totalmente customizado, inclusive com um arquivo de inicialização definindo quais aplicações serão automaticamente ativadas ao se carregar o servidor.

Este servidor funciona bem. Entretanto podem ocorrer alguns problemas carregando aplicações e o servidor cair. Eu recomendo a leitura do FAQ, em anexo, para resolver estes problemas.

The MI/X FAQ

Some of the questions and answers below pertain only to the Windows® or the
MacTMOS platform. This is indicated by (Windows) or (MacOS) being placed
after the "Q:" If there is no such indication, assume that the question is
pertinent to any platform.

This document is available in text-only format as well:
ftp://ftp.microimages.com:4021/pub/mix/mix_faq.txt

  ------------------------------------------------------------------------
MI/X FAQ List of questions:

  1. Is MI/X really free?
  2. Why is it really free?
  3. How can I get a copy of MI/X?
  4. How can I get the latest version?
  5. Can I mirror MI/X on my FTP site?
  6. Why do I get an error message when I try to download MI/X?
  7. Will MicroImages email MI/X to me?
  8. How do I unpack the MI/X distribution for Windows?
  9. How do I unpack the MI/X distribution for Mac?
 10. Why do I get an error message saying "can't find file0001.bin"?
 11. Why does setup.exe go into DOS and hang?
 12. Why do I get "unable to update tntproc.ini" when I try to install?
 13. How do I start MI/X?
 14. Why does MI/X go away and give me an error message right after I start
     it?
 15. Why does MI/X quit as soon as I try to start an X session or a remote X
     client?
 16. Why do I get "unable to open :0.0" on my Mac?
 17. Besides twm, can I use a different window manager with MI/X?
 18. How do I configure twm for MI/X on the Mac?
 19. How do I configure twm for MI/X on Windows?
 20. How can I undo a configuration change that cause MI/X on the Mac to
     exit?
 21. How do I start an X session from a remote host?
 22. What fonts can I use with MI/X?
 23. What fonts can I delete that came with MI/X?
 24. Can I add fonts to MI/X?
 25. Can I use PCF fonts with MI/X?
 26. How can I add fonts to MI/X so it will find them?
 27. How can I delete fonts?
 28. Can I use a fontserver for MI/X?
 29. Why can't I use the ALT-GR keyboard sequence for European characters?
 30. How many files do I need to download for the Windows version?
 31. How can I get a middle mouse button?
 32. Why do I get a "Bad Length" error when trying to run a program through
     MI/X?
 33. Why does the text go away when scrolling through a pop-up menu?
 34. Does MI/X support xauth?
 35. Can I run the X11R6 clients that have been ported to Windows NT locally
     on my Windows box?
 36. Can I set the screen size for MI/X when it launches?
 37. Can I cut and paste with MI/X?
 38. Can I cut and paste between MI/X and a standard Windows or Mac app?
 39. Can I use MI/X to run UNIX programs locally on my Mac or PC?
 40. Does MI/X include an rsh or rexec client?
 41. Will MI/X support dual monitors on my Mac?
 42. Is MI/X capable of xdm queries?
 43. Will MI/X work on a machine running Windows 3.1?
 44. Does MI/X support the LBX (low bandwidth extension)?
 45. Can I access the binaries from a Linux box on my Windows 95 machine
     using MI/X?
 46. How can I find out my IP address on Windows?
 47. Can I change the bit depth that MI/X will run at?
 48. Is MI/X currently available for Windows NT on a DEC Alpha?
 49. Why doesn't the key combination "control-\" seem to work correctly on
     the Mac?
 50. Does MI/X support OpenGL?
 51. Why do Java programs on SGI, Sun and DEC machines crash when trying to
     use MI/X as their X server?

  ------------------------------------------------------------------------
  ------------------------------------------------------------------------

  1. Q: Is MI/X really free?

          A: Yes. No strings attached. MicroImages does retain a
          copyright on it, however.

     -----------------------------------------------------------------------
  2. Q: Why is it really free?

          A: MicroImages gains name recognition and good will.
          MicroImages maintains MI/X as the X Server for its
          professional TNT image processing, geospatial data
          management, and desktop cartography products. In order to
          make the TNT products work exactly the same on all Windows,
          Macintosh and UNIX computers, MicroImages needed a robust and
          stable X Server whose future was not in the hands of some
          other company. (MicroImages also enjoys the irony that some
          ARC/INFO users will run our competitor's product on our free
          X Server.)

     -----------------------------------------------------------------------
  3. Q: How can I get a copy of MI/X?

          A: You can download it from MicroImages' FTP site, or from
          mirror sites.
          The URL to download MI/X from MicroImages' FTP site in
          Lincoln, NE U.S.A. is:
          http://www.microimages.com in the "Free Stuff" section.

          In Europe (University of Göttingen, Germany)
          Windows:
               ftp://ftp.gwdg.de/pub/x11/mix/getme1st.exe
               ftp://ftp.gwdg.de/pub/x11/mix/file0001.bin
          MacOS:
               ftp://ftp.gwdg.de/pub/x11/mix/mix68k.sit.bin
               ftp://ftp.gwdg.de/pub/x11/mix/mixppc.sit.bin
          In Germany, (TU Bergakademie Freiberg)
          Windows:
               ftp://ftp.geo.tu-freiberg.de/pub/microimages/mix/file0001.bin

               ftp://ftp.geo.tu-freiberg.de/pub/microimages/mix/getme1st.exe
          In North America, (University of Michigan, USA)
          MacOS:
               http://www.umich.edu/~scottven/files/MIX/mac/mix68k.sit=
               http://www.umich.edu/~scottven/files/MIX/mac/mixppc.sit=
          Windows:
               http://www.umich.edu/~scottven/files/MIX/win/getme1st.exe=

               http://www.umich.edu/~scottven/files/MIX/win/file0001.bin=
          In Australia, (Univeristy of New South Wales, Australia)
          MacOS:
               ftp://ftp.unsw.edu.au/pub/mac/comm/microimages-x-server-ppc.bin
               ftp://ftp.unsw.edu.au/pub/mac/comm/microimages-x-server-68k.bin

     -----------------------------------------------------------------------
  4. Q: How can I get the latest version?

          A: Download it from MicroImages. The latest version is always
          the version that's on our Web site. Version numbers for MI/X
          are simply the date the software was compiled in the format
          of 7 Mar 1973. Mirror sites may have outdated versions. If
          you don't know if you have the latest version, compare the
          date that you see on when you start MI/X with the date for
          that same platform on MicroImages' Web site. Please note that
          MI/X software for the Mac PowerPC, Mac 68k, and Windows
          platforms are often compiled on different dates, and
          accordingly, each has its own independent version number.

     -----------------------------------------------------------------------
  5. Q: Can I mirror MI/X on my FTP site?

          A: Yes. We do ask that you agree to the following few
          conditions:
             o The files you distribute must be unaltered copies of the
               package as distributed by MicroImages, Inc.: this is to
               include the binary executables as well as any
               configuration files and text files contained with it.
             o Please register your mirror site with MicroImages, so
               that we know about the mirror and can point others to
               it, and can keep you informed on changes in the
               software. You can register online at this URL:
               http://www.microimages.com/freestuf/register.htm
             o You may not reverse engineer, or convert into any human
               conceivable form, the binary executable files that make
               up MI/X.
             o You may not charge money for MI/X itself, excepting the
               costs of redistribution media or shipping.
             o Keep up with the latest version. Please check back with
               us as we update our products quarterly, there are likely
               to be some improvements made in MI/X that you will want
               to make available as well.

     -----------------------------------------------------------------------
  6. Q: When I click on the links on your download page, I get an error
     message saying that the file doesn't exist or that the link is no good.
     What is wrong?

          A: The links aren't bad. Some browsers will return an error
          message indicating that the link is bad or that the file
          wasn't found, when in fact, the browser times out because the
          site is so busy.

     -----------------------------------------------------------------------
  7. Q: I'm having trouble downloading MI/X. Can you e-mail it to me?

          A: No. If you are having trouble downloading, try again at a
          different time, or try a mirror site. MI/X is popular and
          traffic is heavy, which can cause download problems during
          peak periods. Attempting to email it would only consume our
          valuable staff time and would not evade such problems as
          network traffic or slow connections. If you don't have a good
          enough network connection, then we encourage you to order
          TNTlite on CD-ROM from MicroImages, which includes MI/X, and
          which you can obtain for costs of shipping and handling.
          Ordering the TNTlite on CD gives you access to our
          award-winning geospatial data analysis software, and many
          Getting Started tutorial booklets with sample data: as well
          as Microsoft Internet Explorer and Adobe Acrobat Reader for
          various platforms. It is well worth the investment!

     -----------------------------------------------------------------------
  8. Q: (Windows) I've downloaded all the files for MI/X for Windows, how do
     I unpack it?

          A: Make sure that all the files are in the same directory,
          (don't put any capital letters in the name and don't make its
          name longer than 8 characters) then type GETME1ST.EXE to
          start unpacking the files. This will make a bunch of new
          files, one of which is called "SETUP.EXE." To continue the
          installation, type SETUP.EXE and follow the instructions on
          the screen. On older versions, the setup program for TNTlite
          and MI/X is the same, during install it will bring up a list
          of files that are missing. By each file is a letter that
          indicates what it is a component of. As long as no X's (to
          mark Xserver files) appear, you have all the pieces you need
          and can proceed with the install.

     -----------------------------------------------------------------------
  9. Q: (MacOS) I've downloaded MI/X for MacOS, how do I unpack it?

          A: You will need a decompression utitlity. One of the most
          popular utilities is called StuffIt Expander. Drag the file
          you've downloaded on to the StuffIt Expander icon, and that
          is all you need to do.

     -----------------------------------------------------------------------
 10. Q: (Windows) When I try to run the setup program created from
     getme1st.exe, I get an error message saying "can't find file0001.bin".
     What's happening?

          A: file0001.bin isn't in the same directory as setup.exe, or
          it was renamed to something other than file0001.bin, or you
          didn't download the file. Note that sometimes some browsers
          have been known to change the name of the file when you save
          it to your disk. If the name of file0001.bin is changed to
          anything different, setup.exe will not find it, and your
          setup will obviously fail.

     -----------------------------------------------------------------------
 11. Q: (Windows) When I run setup.exe, my system goes into DOS and then
     hangs.

          A: Please take the follwoing steps to correct the problem;
            1. Under Windows '95, right click on the Start button and
               select the Explore option.
            2. Double click on the Programs group.
            3. Right click on the MS-DOS shortcut and select Properties
               from the drop down menu that appears.
            4. In the MS-DOS Prompt dialog window that opens, select
               the Program tab and then click on the Advanced button at
               the bottom of the dialog window.
            5. In the Advanced Program Settings dialog that opens, make
               sure that one of the two choices other than MS-DOS Mode
               is selected.
            6. Click OK and OK to exit the Advanced and MS-DOS Prompt
               dialog, close the explorer and try the install process
               again.

     -----------------------------------------------------------------------
 12. Q: (Windows) I downloaded the installation files for Windows 95 and ran
     the setup.exe. After selecting 'install/setup mi/x server with twm'
     dialog box I received the message: "Unable to update tntproc.ini." Then
     the install ended. Any suggestions?

          A: Install MI/X into a directory that doesn't have a space in
          the path name, (i.e. don't install to a directory under
          c:\program files) and make sure the pkunzip.exe created by
          getme1st has the correct filename: pkunzip.exe, and not
          pkunzip.bin or something else.

     -----------------------------------------------------------------------
 13. Q: (Windows) How do I start the MI/X program after installing it?

          A: You can start MI/X from the "Start" Menu (Start / Programs
          / Free TNTlite products / MIXServer ) which runs a program
          called TNTstart to launch MI/X, or you can change to the
          directory where MI/X is located and type 'tntstart' . In some
          rare cases using the TNTstart program to launch MI/X does not
          work. In those cases issue the following commands from a DOS
          prompt (you may have to be in the directory where you
          installed MI/X):

                          XS
                          TWM


          This will start the server and its window manager manually.
          Running the commands from the command line can also be a good
          way to trouble shoot since you may get error messages
          reported to the console that may help you discern what is
          going wrong. You would not see these if you were running the
          program using tntstart.

     -----------------------------------------------------------------------
 14. Q: When starting MI/X, I see the MI/X screen come up briefly and then
     goes away and then I get an error message. What is happening?

          A: Connect to the machine that you want to run MI/X against
          before you start MI/X.

     -----------------------------------------------------------------------
 15. Q: I login to my remote UNIX host. Then I start MI/X and it comes up
     okay. Then when I try to start an X session, or send a remote X client
     to the machine running MI/X, MI/X quits. It does this every time. What
     am I doing wrong?

          A: Try changing your preferences. For Windows, edit
          tntserv.ini and make sure that CloseOnMenuExit is set to No,
          e.g.

                          CloseOnMenuExit=No


          For the Mac, open File / Preferences, select the
          "Preferences" icon on the left, and make sure that the "Auto
          exit when last client dies" checkbox is not checked.

     -----------------------------------------------------------------------
 16. Q: (MacOS) When I try to start MI/X I get a message saying "unable to
     open :0.0". What is going on?

          A: Make sure that under the "Sharing Setup" control panel the
          Macintosh has been given a name.

     -----------------------------------------------------------------------
 17. Q: Can I use a window manager other than twm with MI/X?

          A: Yes, however twm is the window manager we support. We
          can't tell you how to configure other window managers, or
          even guarantee that they'll work.

     -----------------------------------------------------------------------
 18. Q: (MacOS) How do I configure twm?

          A: If you put a file named "system.twmrc" in the same folder
          as the twm program on your computer, the twm program will
          read configuration settings from it. Consult the
          documentation, man page, etc. for twm to learn what to put in
          system.twmrc to configure twm. Note that the current version
          of MI/X for MacOS does not support the launching of X clients
          from a twm menu. This is forthcoming in later versions.

     -----------------------------------------------------------------------
 19. Q: (Windows) How do I configure twm?

          A: The MI/X distribution comes with a file named TNTSERV.TWM.
          This is twm's configuration file. To learn the format of
          TNTSERV.TWM, consult the documentation, man page, etc. for
          twm. If you wish to create a custom format for twm, you can
          make a configuration file with any name, and direct twm to
          use it instead of its default configurations. This is done by
          using the -f option, i.e. twm -f myconfigfile.twm

     -----------------------------------------------------------------------
 20. Q: (MacOS) I've made an unfortunate configuration change that causes
     MI/X to hang, now each time I try to start MI/X, it crashes without
     even letting me get to the Preferences dialog to fix the configuration.
     What do I do?

          A: If you hold the <COMMAND> key while double-clicking the
          MI/X application icon, MI/X will open the Preferences dialog
          for you without launching the X server. You can then undo any
          unfortunate configurations.

     -----------------------------------------------------------------------
 21. Q: How do I use MI/X to start an X session with a remote host?

          A: Start MI/X. Telnet to the remote host. Set the DISPLAY
          environment variable on the remote host to the machine you
          are running MI/X on. For example on Solaris (running csh):


                          setenv DISPLAY mymachine:0.0


          or failing that:

                          setenv DISPLAY my.machine's.ip.number:0.0


          replacing "my.machines's.ip.number" with the actual IP number
          of the local machine running MI/X.

          After this, you can launch whatever X applications you wish
          on your remote host and they will display on the machine
          running MI/X. To invoke a command shell try:

                          xterm &


          When the xterm comes up you can close the telnet session. The
          commands may differ on various flavors of UNIX.

     -----------------------------------------------------------------------
 22. Q: What fonts can I use with MI/X?

          A: BDF and PCF fonts.

     -----------------------------------------------------------------------
 23. Q: There are a lot of fonts included in the distribution that I won't
     use and are taking up space on my hard drive (such as Chinese and
     Japanese character fonts.) Can I get rid of some of these fonts and
     still use MI/X?

          A: Yes, you can get rid of some of the extra fonts. Of
          course, you will still need to keep some of them. Here are
          some examples of fonts to keep:

                  7x13b.bdf        -misc-fixed-bold-r-normal--13-120-75-75-c-70-iso8859-1
                  ascii.bdf        -mi-fixed-medium-r-normal--16-160-72-72-c-160-ascii-1
                  olcursor.bdf     -sun-open look cursor-----12-120-75-75-p-160-sunolcursor-1
                  olgl10.bdf       -sun-open look glyph-----10-100-75-75-p-101-sunolglyph-1
                  cursor.bdf       cursor
                  deccurs.bdf      decw$cursor
                  decsess.bdf      decw$session


          The last part of the font is the language encoding. Chances
          are that if it isn't "iso8859-1", then you don't need it.
          Exceptions are the other files above. "cursor.bdf" is
          especially important as it contains the cursors used by the X
          Window System.

     -----------------------------------------------------------------------
 24. Q: The fonts that I need to run my program aren't included in with
     MI/X. Where can I get more fonts?

          A: Check with your sysadmin, or take a look on the web. Here
          is a site that I found;
          http://www-rn.informatik.uni-bremen.de/home/X11R6/lib/X11/fonts/100dpi/
          http://www-rn.informatik.uni-bremen.de/home/X11R6/lib/X11/fonts/75dpi/
          http://www-rn.informatik.uni-bremen.de/home/X11R6/lib/X11/fonts/misc/

     -----------------------------------------------------------------------
 25. Q: I've got all the standard X fonts here, but in the PCF format. Are
     these compatible with MI/X, or do they need to be in the BDF format?
     And how do I tell MI/X to add them?

          A: Yes, you can use the PCF format. Find the BDF/MISC
          directory (it should be in the directory into which you
          install MI/X), there should be a file called "fonts.dir"
          which contains examples of how to add BDF and PCF fonts. The
          "fonts.dir" file for MI/X corresponds to the file with the
          same name on a UNIX X server.

     -----------------------------------------------------------------------
 26. Q: Okay, I understand that to add a font, it has to be in a *.bdf or
     *.pcf format and that they have to be added to the fonts.dir, but how
     do I do that?

          A: First, open the font in a text editor. The first few lines
          will look like this:

          STARTFONT 2.1
          FONT -Misc-Fixed-Medium-R-Normal--10-100-75-75-C-60-ISO8859-1
          SIZE 10 75 75

          Copy the line that appears after FONT. Next, open the
          font.dir file with a text editor. It will look like this:

          87
          gb16.pcf        -cclib-fixed-medium-r-normal--16-150-78-78-c-160-gb2312.1980-0
          ascii.bdf        -mi-fixed-medium-r-normal--16-160-72-72-c-160-ascii-1
          7x13b.bdf        -misc-fixed-bold-r-normal--13-120-75-75-c-70-iso8859-1

          Note that there is a number at the top of the file. This has
          to match the number of fonts in the file. (I've only included
          the first three in this example. The actual file would have
          84 more entries.) Once the fonts.dir is open, go to the
          bottom of the file and add the name of the font you are
          adding and paste in the information you copied from the font.
          Then change the number at the top of the file to reflect the
          new number of fonts in the file. In my example, I would
          change 87 to 88.

     -----------------------------------------------------------------------
 27. Q: How can I delete fonts?

          A: Follow the steps mentioned above for opening the fonts.dir
          file, delete the entry for the font you are deleting, change
          the number at the top of the font.dir file to reflect the
          correct number of fonts listed in the file. Save the font.dir
          file and delete the *.bdf or *.pcf file.

     -----------------------------------------------------------------------
 28. Q: Can I use a fontserver for MI/X?

          A: No. Fonts have to copied to the machine running MI/X.

     -----------------------------------------------------------------------
 29. Q: (Windows) Why can't I use the ALT-GR key sequences (for European
     characters) with MI/X?

          A: This problem does not occur with the TNT products. It may
          occur with other X clients for various reasons.

     -----------------------------------------------------------------------
 30. Q: (Windows) Why do I only see two files available for download...
     there used to be three. I can't install because the installer program
     asks for file0002 but I can't find it on MicroImages' website.

          A: Since the 19 Februaray 1997 version of MI/X, only
          GETME1ST.EXE and FILE0001.BIN are required to install MI/X.
          Previous versions required FILE0002.BIN in addition to the
          other two files. If the setup program says that you can't
          install because you're missing FILE0002.BIN, you need to
          download the latest version. You will have to download both
          GETME1ST.EXE and FILE0001.BIN to get the 19 Feburary 1997
          version, since the organization of both files has changed
          since the previous version.

     -----------------------------------------------------------------------
 31. Q: (Windows) I don't have a three-button mouse, but I need three
     buttons for my X clients. How do I do this?

          A: Currently, if you want to have three buttons for your X
          clients, you need to have a three button mouse on your PC.
          There is no key sequence or shortcut to emulate a third
          button on Windows like there is on the Mac.

          If you want to use the paste/insert text function in X which
          is by default mapped to the middle button which is
          unavailable on the PC, then there may be a workaround: You
          can use the xmodmap program to modify how the mouse events
          from the server (MI/X) are interpreted by the X client (i.e.
          xterm). For instance you can swap the middle and right mouse
          button with this command:

                  xmodmap -display mix.machine.name:0.0 -e "pointer = 1 3 2"

          That will make the right mouse button act like the "middle"
          button of a three-button mouse, thereby allowing selecting
          and copying text with the left button, and pasting/inserting
          with the right button. Note that on a two-button mouse you
          will still be missing a button (the button that was the right
          button, or button 3): you just switched around what button
          does what using the xmodmap program. So if you need true
          three-button functionality, the best solution is still to get
          a three button mouse.

          If you have a three-button mouse and can't get the buttons to
          work properly, make sure that you have drivers properly
          installed and configured for the three-button mouse so that
          Windows can handle three buttons instead of the default two.
          Specifically, you will need to tell the driver that the
          middle button of the mouse is to be mapped to a "Middle
          Button" function, and not to some other nifty (and tempting)
          Windows shortcut. Note that if you do this, the "Middle
          Button" function will not used under Windows itself, but will
          be accessible to MI/X and clients running in it. Logitech
          provides three-button mice and drivers that work and have
          been tested with MI/X. Also, the Intellipoint mouse sold by
          Microsoft offers a rolling wheel that acts as a scroller
          controller on the mouse when turned while in Windows
          applications, and when clicked, it can be set to function as
          a "middle" mouse button which works in MI/X.

     -----------------------------------------------------------------------
 32. Q: I get a Bad Length error message when I'm trying to run a program
     through MI/X. What can I do to correct this?

          A: This error occurs when the UNIX box that MI/X is running
          against trys to pass an image that is at a greater bit depth
          than the display of the local machine is set to. For example,
          if you are running MI/X on a Windows machine set to display
          256 colors (8-bit) and the program you are running tries to
          pass a 16 bit image, you'll get this error. To correct this,
          set the parameters of the program you are running to match
          the resolution of the local machine, or change the resolution
          of the local machine to match the bit depth of the images
          that the UNIX box is trying to pass.

     -----------------------------------------------------------------------
 33. Q: When I use a pop-up menu in xterm, scrolling through the the menu
     text causes it to disappear. Is there a fix for this?

          A: This is a known error, but there is no fix for it.

     -----------------------------------------------------------------------
 34. Q: Does MI/X support xauth, or is there some other means of limiting
     what users can can use it or what applications they can open?

          A: No.

     -----------------------------------------------------------------------
 35. Q: (Windows) Can I run the X11R6 executables that that have been ported
     to Windows NT?

          A: Yes. Make sure that your DISPLAY environment variable
          points to the machine running MI/X, i.e. set
          DISPLAY=hostname:0.0 You can then run xclock, oclock, etc. on
          a PC running NT or 95 instead of using a remote UNIX host.

     -----------------------------------------------------------------------
 36. Q: (Windows) It seems that MI/X always takes up the full screen when it
     is launched. Is there a way I can set the screen size for MI/X?

          A: Yes. Edit tntserv.ini and add the following entires under
          the

                  [XSERVER] section
                  NumColumns=n
                  NumRows=n

          with n being the number of rows and columns you want MI/X to
          occupy.

     -----------------------------------------------------------------------
 37. Q: Can I cut and paste with MI/X?

          A: MI/X will support cut and paste of text to other X
          applications, but not graphics.

     -----------------------------------------------------------------------
 38. Q: Can I cut and paste between MI/X and a Windows or Mac application?

          A: No.

     -----------------------------------------------------------------------
 39. Q: Can I use MI/X to run UNIX programs locally on my Windows or Mac
     computer?

          A: No. Using MI/X, you can run a UNIX program remotely on the
          UNIX machine itself, sending the display output to MI/X on
          your local PC or Mac. You cannot however download a program
          compiled for UNIX and attempt to run it on your Mac or PC
          using MI/X (or anything else for that matter). If you have X
          programs compiled for your Mac or your PC, then yes, you can
          use MI/X as the graphical X environment for these programs.
          That is why we created MI/X in the first place!

     -----------------------------------------------------------------------
 40. Q: Is there a way to use XS to do a rsh or rexec directly to the
     station I want to login to?

          A: No. The MI/X distribution does not include an rsh or rexec
          client. You can obtain rsh or rexec clients from other
          sources.

     -----------------------------------------------------------------------
 41. Q: (MacOS) Does MI/X support dual monitors?

          A: Yes, as of the 21 Aug 1997 version. Previous versions do
          not.

     -----------------------------------------------------------------------
 42. Q: Is MI/X capable of xdm queries?

          A: No. Although there may be options and preferences to set
          regarding xdm, they have not yet been implemented.

     -----------------------------------------------------------------------
 43. Q: (Windows) Do you have a version of MI/X that will run on a Windows
     3.1 machine?

          A: Yes and No. Actually there is a version of MI/X for
          Windows 3.1: it is shipped with our software for Windows 3.1.
          However, you cannot use this version of MI/X as an X server
          for clients run on a remote host. This is possible on
          Windows95/NT and MacOS because MI/X uses sockets technology
          available in those operating systems, which is unfortunately,
          not available in Windows 3.1.

          Now, if you have a bunch of local X clients (such as TNTlite
          which you can also download for free at
          http://www.microimages.com/freestuf/), MI/X for Windows 3.1
          will be useful to you. But if you're hoping to use your
          Windows 3.1 box as an X terminal using MI/X like you would on
          Windows 95, then sorry, you're out of luck.

          So, if you mean, "Can I use MI/X as an X server for clients
          on remote machines accessed via a network?", then, no, MI/X
          for Windows 3.1 does not support this feature. Therefore, we
          do not package MI/X separately for distribution for Windows
          3.1 as we do for the Windows 95, Windows NT, Mac 68k or Mac
          PowerPC version of MI/X. This is just one of many reasons
          that MicroImages recommends that users of Windows 3.1 upgrade
          to Windows 95.

     -----------------------------------------------------------------------
 44. Q: Are there any plans to support the LBX (low band width) extension?

          A: No.

     -----------------------------------------------------------------------
 45. Q: (Windows) Is it possible to run MI/X on my Windows 95 machine to
     access the binaries on a Linux box using a serial (nullmodem) cable.

          A: Yes, if you are using the null modem cable to establish a
          TCP/IP network between the machines. However it will be
          limited to the speed of the communications. This is really no
          different than using serial to talk to a modem to talk to
          another machine to establish TCP/IP.

     -----------------------------------------------------------------------
 46. Q: (Windows) Is there a way for me to determine what my IP address is
     when I'm connecting to a UNIX machine through a modem?

          A: Yes. After connecting, run winipcfg.exe (it's a Windows
          utility that is in the directory that you have Windows
          installed to) It will tell you what IP address has been
          assigned to your computer. Use that information to set your
          DISPLAY.

     -----------------------------------------------------------------------
 47. Q: Can I change the bit depth that MI/X is running at to something
     other than what my local machine is running?

          A: No. There is a work aqround, if you have Microsoft's Power
          Toys installed. You can use quickres to set your display to
          one bit depth, launch MI/X, minimize MI/X and then use
          quickres to change the bit depth of your display to something
          else. This isn't something we recommend, but some users have
          tried it with success.

     -----------------------------------------------------------------------
 48. Q: Is MI/X currently available for Windows NT running on a DEC Alpha?

          A: No.

     -----------------------------------------------------------------------
 49. Q: (Mac) My key combination "control-\" doesn't seem to work correctly.

          A: This is a known error. There is currently no work around.

     -----------------------------------------------------------------------
 50. Q: Does MI/X support openGL?

          A: No.

     -----------------------------------------------------------------------
 51. Q: Java programs on SGI, Sun, and DEC machines crash when trying to use
     MI/X as their X server. is there a way to correct this?

          A: The problem occurs because the Motif AWT libraries use the
          Font "plain Dialog 12 point" as a fall-back default font.
          Unfortunately, when using a remote X server sometimes this
          font isn't available.
          The problem is common enough to be included in the Java
          Programmers's FAQ (http://www.best.com/~pvdl/javafaq.txt):=

               4.2 Why do I get this when using JDK 1.1 under X
               Windows?
                    java.lang.NullPointerException
                         at
                         sun.awt.motif.MFramePeer.<init>(MFramePeer.java:59)
                         at
                         sun.awt.motif.MToolkit.createFrame(MToolkit.java:153)
                         at java.awt.Frame.addNotify(Frame.java)
                         at java.awt.Window.pack(Window.java)
               A. There's a missing font on your system. Move
               font.properties from the "lib" subdirectory aside
               to font.properties.bak Then it won't look for the
               font and fail to find it.

          Once this fix is in place, MI/X works well with Java clients
          running on Sun and SGI.

                           This document maintained by: mix@microimages.com
                                          Questions to: mix@microimages.com


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