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AutoCAD R13 Digitizer & Button Setup Options
for Windows, Windows 95 and Windows NT

Written by Autodesk

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A Tips & Techniques document for use with AutoCAD
January 31, 1996

Introduction:
This document provides general information on the three most common configuration options for digitizers in AutoCAD R13c4 for Windows 3.11, Windows 95 and Windows NT. The digitizer setup options for these three operating systems are the same. A brief section is given at the end of the document for configuring the digitizer puck buttons in the acad.mnu file. There is also an explanation of the causes of the "***digitizer not responding" and "*can not open port" error messages.

Wintab / Wintab Compatible Digitizer Driver ADI 4.2 by Autodesk

Configuring Windows for the Wintab driver, and AutoCAD for the Wintab Compatible Digitizer Driver is the preferred method for configuring your Digitizer. Using this setup, you can configure the tablet menu areas and assign commands to the buttons on the digitizer puck. Many Wintab drivers will allow you to set up both a mouse and your digitizer on two different ports and use them interchangeably in both AutoCAD as well as all other Windows applications. Check the documentation that came with your Wintab driver to see if it has this capability. Most digitizer manufacturers provide an installation program which will install their Wintab drivers onto your hard drive and configure Windows for their Wintab driver.

NOTE: Autodesk does not write Wintab drivers. You must get the appropriate Wintab driver for your digitizer from the digitizer manufacturer. It is important that you are using the latest version of their Wintab driver which can usually be downloaded from the manufacturers BBS. Summagraphics Wintab version 1.3 does not work with AutoCAD R13c4 under Windows 95. If you are using this digitizer and this operating system, make sure you are using a version later than v1.3.

  1. Installation Steps

    1. Setup Windows for the Wintab driver. Run the Wintab installation program and follow the instructions. Your digitizer should be working the next time you start Windows. If the Wintab driver installation installed a setup program, make sure that you are configured for the correct digitizer model and the correct number of puck buttons.
    2. Once you have the digitizer working in Windows, start AutoCAD and type "config." Select #4 "configure digitizer" and then select "wintab compatible digitizer adi 4.2 - by autodesk inc." then save the configuration.
    3. Select "preferences" from the Options pull down menu and make sure the circle next to "digitizer/mouse" is enabled in the Digitizer Input section.
    4. Use the Options pulldown again, select the tablet command and choose the 'Configure' option. Specify the menu areas and screen pointing as per the AutoCAD Installation Guide for Windows.
    5. Define Fixed and Floating Screen Areas with the 'Tablet' command and the 'Configuration' option. Access to these modes are toggled by F12, or by a button specified in the Tablet, Configuration routine.
      • Fixed Screen Area: The fixed screen area is the area in which you enter data via tablet cursor entry. This mode allows use of the screen pointing area as well as the tablet menus.
      • Floating Screen Area: The floating screen area allows data entry into the screen pointing area, but allows the cursor to "float" when outside of the screen pointing area, acting as a mouse.
    For information on assigning commands to the digitizer puck buttons see "button assignments" below.

  2. Mouse / ADI driver

    If you configure Windows for a Mouse, and AutoCAD for the appropriate ADI driver (your digitizer must be a supported model), you can set up a mouse on one port and a digitizer on another port and use them both. When you first open Windows your digitizer will not yet work and you will have to use your mouse to start AutoCAD. Once you are in AutoCAD, you can configure for the ADI driver and both your digitizer and mouse will work in AutoCAD. (Both devices will also function in all other Windows applications as long as AutoCAD is minimized or running in the background.) For information on assigning commands to the digitizer puck buttons see "button assignments" below.

  3. Wintab / AutoCAD ADI driver

    You can not use a Wintab driver in Windows and the corresponding ADI driver for your digitizer in AutoCAD. When you try to configure AutoCAD for the ADI driver you will get the following dialog box error message:

    The operating system detected the following error(s) on com(x). Digitizer disabled.
    * Cannot open port

    When you select , you will be asked to re-specify the port. If you say No to this question you will be able to get back into the drawing editor and your digitizer crosshairs will work! You will also be able to start the "tablet" command to configure the menu areas. However, when you try to pick the upper left corner of menu area 1 you will find that you can't because the crosshairs have turned into an arrow (Windows System Pointing Device).

    Under this configuration, AutoCAD is unable to use the ADI driver, and it defaults to the "current system pointing device" driver. The "tablet" command still works because the configuration file still reports that you have a digitizer configured.

    This problem will also arise if AutoCAD has a problem initializing the digitizer. If this is the case, when you scroll back up the AutoCAD Text Window you may see the following message:

    ** Digitizer not responding
    The ADI digitizer driver could not initialize
    Digitizer disabled
    (You may not notice this message if you only have 1 or 2 command lines visible and the error message scrolls by.) This will again cause AutoCAD to default to the "current system pointing device" driver, and allow the tablet command to execute improperly. To reconfigure your device properly, type config at the AutoCAD command line.

  4. Button Assignments

    If using the Wintab driver in AutoCAD release 13, access to the button commands as defined in the loaded menu under ***BUTTONS1 is only available if the cursor is outside of the screen pointing area. Move the cursor to any area which is outside the fixed screen pointing area and press the desired button. The command as defined in the loaded menu file should now be accessed.

    It is possible that when the puck is inside the screen pointing area you may be able to use some or all of the buttons by specifying their definition under ***AUX1 of the loaded menu file. This is dependent on the Wintab driver you have installed. When the digitizer puck is outside the screen pointing area, the button definitions will be specified under ***BUTTONS1. The ***BUTTONS1 and ***AUX1 sections of the loaded menu file may be edited as follows to determine exactly where each button gets it's definition.

    ***BUTTONS1
    ^p(prompt "first line under ***buttons1")(princ)
    ^p(prompt "second line under ***buttons1")(princ)
    ^p(prompt "third line under ***buttons1")(princ)
    ^p(prompt "fourth line under ***buttons1")(princ)
    ^p(prompt "fifth line under ***buttons1")(princ)
    ^p(prompt "sixth line under ***buttons1")(princ)
    ^p(prompt "seventh line under ***buttons1")(princ)
    ^p(prompt "eighth line under ***buttons1")(princ)
    ^p(prompt "ninth line under ***buttons1")(princ)
    ^p(prompt "tenth line under ***buttons1")(princ)
    ^p(prompt "eleventh line under ***buttons1")(princ)
    ^p(prompt "twelfth line under ***buttons1")(princ)
    ^p(prompt "thirteenth line under ***buttons1")(princ)
    ^p(prompt "fourteenth line under ***buttons1")(princ)
    ^p(prompt "fifteenth line under ***buttons1")(princ)
    
    ***AUX1
    ^p(prompt "first line under ***aux1")(princ)
    ^p(prompt "second line under ***aux1")(princ)
    ^p(prompt "third line under ***aux1")(princ)
    ^p(prompt "fourth line under ***aux1")(princ)
    ^p(prompt "fifth line under ***aux1")(princ)
    ^p(prompt "sixth line under ***aux1")(princ)
    ^p(prompt "seventh line under ***aux1")(princ)
    ^p(prompt "eighth line under ***aux1")(princ)
    ^p(prompt "ninth line under ***aux1")(princ)
    ^p(prompt "tenth line under ***aux1")(princ)
    ^p(prompt "eleventh line under ***aux1")(princ)
    ^p(prompt "twelfth line under ***aux1")(princ)
    ^p(prompt "thirteenth line under ***aux1")(princ)
    ^p(prompt "fourteenth line under ***aux1")(princ)
    ^p(prompt "fifteenth line under ***aux1")(princ)
    
NOTE: If you wish to run a Wintab driver under Windows NT make sure that you are using an NT Wintab driver. If you wish to run a Wintab driver in Windows 95 make sure you are using a Windows 95 Wintab driver.

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