Copyright: Copyright 1997 -- 2001 3M


The Basics

TouchWare for Windows is the software for your 3M Touch Systems touch screen.  It provides full touch screen functionality for all applications running under Microsoft Windows 2000, Windows NT 4.0, Windows 9X, and Windows Me.

TouchWare allows users to select, launch, and drag objects using the touch screen.  To make a selection, users simply touch the screen.  It's that easy and natural — just touch to select.

Click one of the following buttons to learn the basics of TouchWare.

  Calibration Overview

  Touch Settings Overview

  Cursor Overview

  Hardware Overview

  Tools Overview

  Multiple Monitors Overview

  Troubleshooting Overview

  Pen Overview

  ThruGlass Overview


Calibration Overview

The calibration process aligns the touch screen with the underlying video.  Specifically, calibration defines the dimensions of the active area of the touch screen and locates the center of the touch screen.  If the screen is not calibrated, the active area of the touch screen may not be aligned properly or may be unnecessarily small in size.

Once calibrated, the information is saved by the touch screen for each video resolution.  Therefore, you only need to recalibrate the touch screen the first time you change to a particular video resolution.

Note that the TouchWare installation will automatically set 2-point calibration. Users may switch calibration styles using the Tools tab → Options → Advanced → Calibration Style dialog.

Click one of the following buttons to learn more about Calibrate options.

  When to Calibrate the Touch Screen

  Calibrating the Touch Screen

  Pen Calibration

  Testing the Calibration

  Advanced Calibration Options (for advanced users only)


When to Calibrate the Touch Screen

You should calibrate the touch screen in the following cases:

•	The first time you change to a particular video resolution (for example 640x480 or 800x600) or video mode of your monitor.  Your monitor’s video card determines the available resolutions.

•	Any time you change the size of the video image by adjusting the horizontal and vertical controls on your monitor.

•	Any time you run the Stabilize Cursor function from the Cursor tab.

•	Any time the cursor does not follow the movement of your finger, or does not reach the edges of the touch screen.

Note:  Advanced users may disable calibration reminders using the [image] Advanced Touch Screen Settings option.

  Related Topics


Calibrating the Touch Screen

1	Select the Calibrate tab.

2	Click the Calibrate button. Calibration targets appear on the screen.  A hand guides you through the calibration process pointing, in turn, to the appropriate target.

Note: If you press Escape or do not touch the screen within twenty seconds, the system automatically cancels the calibration process with no change to the current settings.

3	Touch the touch screen and position your fingertip to completely cover the yellow target.  The area around the hand will begin to flash.  A "Hold" message will appear to advise you to continue touching the screen. When calibration is complete, the message “Touch Enabled” will appear.

When touching the calibration target, make sure you

•	Face the monitor directly.

•	Perform the calibration in the position (sitting or standing) you expect to normally use the touch screen.

•	Touch the calibration target firmly and precisely with your fingertip.  Be careful to keep your other fingers away from the touch screen as you touch the target.

4	Repeat these instructions for additional calibration target(s).

5	A dialog box prompts you to test the calibration.  If you accidentally touched the screen in the wrong place during calibration, you will distort the touch screen calibration.  Test to make sure you are satisfied with the calibration results.

6	If you are using a TouchPen, repeat the calibration procedure using the pen.

Note:  Advanced users may disable calibration verification using the [image] Advanced Touch Screen Settings.

  Related Topics


Pen Calibration

On a TouchPen system, a dialog box prompts you to calibrate the touch screen twice (once with your finger and once with the pen) if you are using both a touch pen and your finger as touch devices.

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Testing the Calibration

•	Touch random points on the screen.  The cursor should be located underneath your finger or pen when you touch the screen.

•	Drag your finger across the screen and check that the cursor follows your movements.

•	Touch each corner and along the edges of the screen.  Verify that the cursor reaches the full image area of the screen.  Be sure you can touch and activate all icons and menus across the entire screen.

•	If you are using a TouchPen, repeat the calibration procedure with the pen.

•	If you need to recalibrate the screen, make sure to touch the targets carefully.  It is possible that one of your touches did not register properly or you accidentally touched the screen in the wrong place during calibration.  For example, if you touch beyond the targets or into the non-image area, you will distort the touch screen calibration.

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Touch Settings Overview

The Touch Settings tab enables you to customize the response of your touch screen.  You can change the way the system responds to your touch, add a right-click tool to your desktop, tell your system to beep on touch, and define the double-click speed and area of your touch.

Click one of the following buttons to learn more about Touch Settings options.

  Touch Mode

  Right Click Tool

  Touch Sounds

  Double Click Speed

  Double Click Area


Touch Mode

Click one of the following buttons to learn more about Touch Mode options.

  Desktop Mode

  Drawing Mode

  Button Mode

Click here [image] for a description of custom touch mode options.

  Related Topics


Desktop Mode

Desktop mode is most useful for general-purpose desktop applications.  In Desktop mode, a touch positions the cursor much like a mouse.  Holding the touch steady is equivalent to pressing and holding the mouse button.  Lifting off is equivalent to releasing the mouse button.

•	To click, touch the object.  Lift off the screen.

•	To double-click, touch the object twice quickly at the same location.

•	To drag, touch the object.  Pause.  Slide your finger to the new location.  Lift your finger off the screen.

Note:  When using the Draw tool, you must pause for the system to recognize touch before drawing.

  Related Topics


Drawing Mode

Drawing mode is most useful for draw, paint, illustrating and graphics applications.  In Drawing Mode, a touch is equivalent to pressing and holding down the mouse button.  This is considered the easiest mode to use with immediate reaction to touch.  Lifting off is equivalent to releasing the mouse button.

•	To click, touch the object.  Lift off the screen.

•	To double-click, touch the object twice quickly at the same location.

•	To drag, touch the object.  Slide your finger to the new location.  Lift off the screen.

  Related Topics


Button Mode

In Button Mode, touching the screen is equivalent to pressing and releasing the mouse button.  The action occurs as soon as you touch the screen.  This mode is best for button based applications (like a calculator).  This mode is not good for drawing or dragging objects.

•	To click, touch the object.

•	To double-click, touch the object twice quickly at the same location.

•	To drag, touch the object.  Pause.  Slide your finger to the new location.  Lift off the screen.  The object is still selected and can be activated with another touch.

Note:  When you choose a [image] Custom Touch Mode (from the Tools tab click on Options), the text on this button face will change from Button to Custom.  You must then select Custom to activate your choice.

  Related Topics


Right-Click Tool

Places an icon on the desktop (always on top) that allows you to select which mouse button to activate on touch.  Note that this works for the next click action only.  Control returns to the left mouse button as soon as you are done. In multiple monitor situations, you will get a separate right click tool for each touch screen.

You can position this icon anywhere on your desktop by selecting it, pausing until the four-pointed arrow appears, and dragging it wherever you want.

Left button is typically used for normal select and normal drag.  Right button is typically used for applet properties such as context menu and special drag.

  Related Topics


Touch Sound

Select audible beep on touchdown, liftoff, or no beep at all. Click on the Beep button to select the appropriate option for your application.  The default setting is no beep on touch (Beep off).

Click here [image] for special custom touch sound options.

  Related Topics


Double-Click Speed

Double-click speed defines how quickly you must touch the screen for the system to interpret your actions as a double-click.  Set the double-click speed in the slow to medium range for optimum performance with a touch screen.  The tick mark on the bar indicates the default setting.

Touch the globe twice to test the double-click speed and area settings.  If the MicroTouch Enabled logo begins to circle the globe, the touch screen recognized your touch as a double-click.

Note:  Changing this setting will affect the double-click setting of the mouse.

  Related Topics


Double-Click Area

Double-click area defines the space in which you must touch the screen for the system to interpret your actions as a double-click.  Set the double-click area in the medium to high range for optimum performance with a touch screen.  The tick mark on the bar indicates the default setting.

Touch the globe twice to test the double-click speed and area settings.  If the MicroTouch Enabled logo begins to circle the globe, the touch screen recognized your touch as a double-click.

Note:  Changing this setting will affect the double-click setting of the mouse.

  Related Topics


Cursor Overview

The Cursor tab enables you to customize the response of the cursor to your touch.  You can change the way the touch screen displays the cursor, add an offset or edge adjustment for finer touch capability, or stabilize the cursor.

Click one of the following buttons to learn more about Cursor options.

  Cursor Visibility

  Cursor Vertical Offset

  Edge Adjustment

  Stabilize Cursor Overview


Cursor Visibility

This option is for Windows 9X and Windows Me users who do not want to display the cursor when working with a touch application.  By default, the touch screen displays the cursor in your application.  Click on the Cursor button to toggle the cursor on or off.

While this option is disabled for Windows 2000 and NT, users can access the Mouse properties page to hide the cursor.

To hide the cursor in Windows 2000 and NT systems:

1	Click Start → Settings → Control Panel.

2	Open the Mouse Properties Page and click on the Pointers tab.

3	Select Touch Screen Hidden Cursors scheme and click OK.

Note:  Some applications can override this setting by loading their own cursors.

  Related Topics


Cursor Vertical Offset

After you calibrate the touch screen, the cursor should be located directly underneath your finger when you touch the screen.  However, you may prefer to offset the cursor slightly above your touch so you can see the cursor and point more easily and precisely to small objects.

The Cursor Vertical Offset option lets you define the distance between your fingertip and the position of the cursor on the screen.  Offsetting the cursor is helpful when selecting small items, such as single letters in word processing, check boxes, or radio buttons.

1	In the Cursor Vertical Offset box on the Cursor tab, click on the Offset button.  The function is enabled (ON) when the green indicator is illuminated and the Set button becomes active.

2	Click on the Set button.

3	Touch the screen at the desired distance below the tip of the arrow, within the rectangular space provided.  The distance between your liftoff position and the tip of the arrow is the offset distance.  Thereafter, the cursor will be positioned above your finger or pen by a distance equal to the offset distance.  As your finger or pen approaches the bottom edge of the screen, the cursor offset automatically decreases so you can touch items in this area.

  Related Topics


Stabilize Cursor Overview

The Stabilize Cursor option adjusts the operating frequency of the touch screen controller.  In general, you will not need to stabilize the cursor for the touch screen.  Some controllers do not require stabilization and thus do not support this option. However, if you are experiencing erratic or jittery cursor movement, ragged lines, or random touch points, you may want to use the Stabilize Cursor option.

Use the Stabilize Cursor option to test the available frequency settings and determine the best frequency. The range of frequency settings and the default setting depends on your touch screen controller.  You can set a new operating frequency, and then check the performance of the touch screen at that frequency setting.

  Related Topics


When to Stabilize the Cursor

Note: Some controllers do not require stabilization and thus do not support this option.

You should stabilize the cursor any time the cursor movement is very erratic or jittery.  This is NOT a subtle movement.  The cursor will be very jumpy.  To test stability, use the Draw program [image] to draw some lines on the screen.  Check that they are smooth and thin.  If the lines are wide and have ragged edges, the frequency setting is probably not correct for your controller.  Run Stabilize Cursor [image] option.

  Related Topics


Cursor Stabilization Procedure

Note: This test will take several minutes.  Do not touch the screen, mouse or keyboard during the test.  The test is measuring the amount of noise when there is no touch.

1	Choose Stabilize Cursor from the Cursor tab.

2	If you are using a TouchPen controller, a dialog box appears asking if you want to adjust the frequency for pen or finger.  Specify the desired touch method.  Remember to run stabilize cursor for each touch method you use.

3	The system then does a preliminary check of all frequency settings.

4	The Analyzing Frequencies dialog box appears. The system tests each frequency setting and determines the optimum setting.

5	Once the test is complete, a dialog box informs you of the best frequency as determined by the test.  You can click on Accept to switch to this frequency setting or you may click on the Advanced… button to test the frequencies for yourself.

6	The test results are displayed in descending order with the recommended frequency at the top of the list.  The current selected frequency is also indicated.

7	Select a different frequency (if you wish) and click Apply.

  Related Topics


Testing the Newly Selected Frequency

Any time you adjust the frequency you should test the touch screen and verify you are satisfied with its operation.

Test the touch screen by touching the screen in several places and sliding your finger around the screen.  The cursor should hold steady and smooth.  If you see erratic or jittery cursor movement, readjust the controller frequency.

Adjust the frequency until your touch test produces acceptable results. A good test is to go to the Draw program and hold your finger steady on the screen.  If the resulting pattern isn’t fuzzy, you have a good frequency.

It is recommended that you recalibrate [image] the touch screen after using Stabilize Cursor.

  Related Topics


Edge Adjustment

Sometimes the screen image extends into the edge of the monitor bezel.  In this case, it may be difficult to touch items at the left and right edges of the screen.  If the Edge Adjustment option is on, TouchWare automatically offsets the horizontal position of the cursor near the left and right edges, so you can easily reach the edges of the screen image.

TouchWare only makes this adjustment at the left and right edges of the screen.  You cannot define the horizontal offset amount.

  Related Topics


Pen Overview

These options are available only if your system has a TouchPen controller.  TouchPen Mode defines whether the touch screen recognizes input from both a pen and a finger, from a pen only, or from a finger only.  The default mode is Pen/Finger, which means that you can use either your finger or your pen to select options.

The pen works in much the same way as a mouse regardless of the Touch mode setting.  Touching the screen with a pen is equivalent to pressing and holding down the left mouse button.  Lifting the pen off the screen is equivalent to releasing the mouse button.  Touch Sounds are disabled when using the pen (no beep on touch).

Certain pens come with a button which can be used for right-clicks.  To right-click, press and hold the button while you touch the screen. After touching the screen, quickly lift the pen and release the button.

From the Pen tab, select one of the TouchPen mode buttons using the mouse, a pen, your finger, or the appropriate shortcut key.

Note the TouchPen mode is immediately active.  For example, if you select Pen Only, the system recognizes only the pen as a touch device.  You cannot use your finger to make a selection.  You can still use shortcut keys or the mouse to select an option.

The system saves the pen mode so that the next time you power up the system, the selected pen mode is active.

  Related Topics


Pen Only Mode

The system recognizes only pen touches on the screen.  The system ignores finger touches on the screen.

  Related Topics


Finger Only Mode

The system recognizes only finger touches on the screen.  The system ignores pen touches on the screen.

  Related Topics


Pen/Finger Mode

The system recognizes both pen and finger touches on the screen.  This mode is the default mode for TouchPen controllers.  If the system detects both pen and finger touches at the same time, it gives the pen higher priority and acknowledges only the pen touches.  This priority prevents accidental touches from your finger or hand being interpreted as input.

If you are using the pen and you lift the pen from the screen, the system does not recognize finger (or hand) touches until after a system-defined time delay.  If a finger or hand is on the screen when the pen lifts off, the system ignores the finger or hand until you lift off and touch the screen again.

For example, if you rest your hand on the screen while you write with the pen, you can lift the pen and put it back again without your hand touch being acknowledged.

You must calibrate the touch screen twice (once with your finger and once with the pen) if you are using Pen/Finger mode.

Note:  Changing the TouchPen mode setting can optimize the performance of the touch screen.  In Pen/Finger mode, the TouchPen controller checks for input from either a pen or a finger.  The controller always gives priority to the pen.  If you are not currently using the pen for your touch application, use Finger Only mode for optimum system performance.

  Related Topics


Stabilize Cursor for Finger and TouchPen

If you are using Pen/Finger mode when you select Stabilize Cursor from the Cursor tab, a dialog box appears asking if you want to adjust the frequency for pen or finger.  You can stabilize the cursor for use with either a pen or finger.

The recommended frequency setting may be different for the pen and the finger; therefore you must adjust each input method independently.  You could find that the performance of one touch method is acceptable, while another touch method may need stabilization.

  Related Topics


Test TouchPen

Touch in the designated test area [image] to sample draw mode and to determine if the selected TouchPen mode is working.

  Related Topics


Hardware Overview

Use the options on the Hardware tab to determine the basic system settings for your touch screen, locate the touch screen automatically, verify the touch screen is communicating properly, select baud rate, and restore system defaults.

Click one of the following buttons to learn more about Hardware options.

  Controller Information

  Connection

  Restore Defaults


Controller Information

  Controller Type

  Firmware Version

  Touch Screen Status

  Related Topics


Controller Type

•	EX II based controllers

•	Serial/SMT series controllers

•	MT series controllers

•	TouchPen controller

•	ThruGlass controller

•	USB controller

•	MousePort controller (PS/2)

  Related Topics


Firmware Version

These digits represent the version number and revision level of the touch screen controller firmware.

  Related Topics


Touch Screen Status

Touch Screen Status refers to whether or not the touch screen has been found and is operational.

Possible messages include:

OK — Touch screen found and operational.

Touch screen not found — Touch screen not located.  Click here [image] to learn what to do if you receive this message.

Any other error message indicates a hardware failure.  Click here [image] for more information on error messages or contact Technical Support for more information.

  Related Topics


Connection

Note:  These options are not available for USB devices.

  Communications Port

  Find Touch Screen

  Select Baud Rate

  Related Topics


Communication Port

Displays the COM port used for the touch screen hardware connection.

If you have two serial devices operating together, such as a touch screen and a mouse, be sure each device uses a unique COM port and IRQ number.  For example, the mouse can use COM1/IRQ4 and the touch screen can use COM2/IRQ3.  Using the same COM port or IRQ creates device conflicts.  The touch screen must have a unique IRQ; it cannot share an IRQ with another device.

Note:  Verify that any previously loaded hardware/software (i.e., mouse or modem) that used the same COM port as your touch screen has been uninstalled.  Just because the hardware is disconnected doesn’t mean that the software isn’t claiming the port.  Ensure that all components are completely removed from the System files.

Use the Microsoft Hardware Conflict Troubleshooter (in Windows Help) to try and resolve this problem.

  Related Topics


Find Touch Screen

When you select the Find Touch Screen option, TouchWare:

•	Scans the communication ports supported by Windows for a touch screen.  Find Touch Screen searches the baud rates used by the touch screen.

Note: TouchWare will only work with COM ports configured, recognized, operational and supported by Windows at the time of install.

•	Tries to communicate with the touch screen controller.

•	Requests information about the touch screen and its controller.

•	Waits for the touch screen controller to respond.

If TouchWare does not find the touch screen, check that the touch screen is connected properly, and then repeat the search.  Note that this option cannot search any COM ports in use by other applications.

Note:  Verify that any previously loaded hardware/software (i.e., mouse or modem) that used the same COM port as your touch screen has been uninstalled.  Just because the hardware is disconnected doesn’t mean that the software isn’t claiming the port.  Ensure that all components are completely removed from the system files.

  Related Topics


Select Baud Rate

The standard baud rate for 3M Touch Systems serial controllers is 9600, which is generally acceptable for most applications. You may also select 19200 (for TouchPen only), 4800, 2400, or 1200 baud.

Note:  The Select Baud Rate setting is not available for ThruGlass or PS/2.  If you change the baud rate, you could render your ThruGlass touch screen inoperable.

  Related Topics


About TouchWare

Lists the version of TouchWare (the including the Driver, Control Panel, Utility DLL, and Operating System versions) currently installed on your system.  This information is particularly helpful if you need to call Technical Support.

  Related Topics


Restore Defaults

The Restore Defaults option is useful if you have reconfigured the software and need to get back to a working state.  This option does not restore calibration or frequency settings.  Pressing this button restores factory-set system defaults for:

•	Cursor Visibility (On)

•	Calibration style

•	Touch Mode (Desktop) In Multiple Monitor mode the default is Click.

•	Touch Sound (Off)

•	Double-click Speed & Area (Midrange)

•	Advanced Touch Screen Settings

−	Touch enabled

−	Splash screen enabled

−	Calibration reminder enabled

−	Calibration verification enabled

−	Linearization disabled (unless TP4)

−	Noise filter disabled

−	Diagnostic tools disabled

−	Multiple monitor touch modes disabled (except for multiple monitors)

•	Cursor Vertical Offset (Off)

•	Edge Adjustment (Off)

•	TouchPen Mode (Pen/Finger)

Click here [image] for special site default options for Windows 2000 and NT users.

  Related Topics


Tools
Tools Overview

The Tools tab enables you to perform a variety of diagnostics to optimize the performance of your touch screen.  This tab is also the gateway to additional options and advanced touch screen settings.

Click one of the following buttons to learn more about Tools options.

  Touch Screen Diagnostics

  Video Diagnostics

  Touch Screen Linearization

  Touch Screen Options


Touch Screen Diagnostics

  Draw

  Terminal


Draw

The Draw program lets you test the operation of the touch screen and pen by checking the accuracy and speed with which the system responds to your touch.  To draw, simply touch the screen and drag your finger or pen. When using Desktop Mode, you must pause for the system to recognize touch before drawing.

The following options will help you use the draw program more effectively:

•	Press B (blank) to clear the screen and display a blank drawing canvas.

•	Press G (grid) to clear the screen and display a grid that you can use as a drawing guide (default setting).

•	Press L (line) to draw solid lines on the screen (default setting).

•	Press D (dots) to draw dotted lines on the screen, where each dot represents a point reported by the touch screen.

•	Press the Space Bar to clear the screen.

•	The Draw background reflects your Desktop color scheme.  You could experience problems if you have changed your desktop color to a light background.  The Draw grid lines are white and you will not be able to see the test lines.  Change your background color to a dark selection for best results.  Click on Start → Settings → Control Panel → Display → Appearance screen.

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Terminal

In Terminal emulation mode, you can send firmware commands directly to the touch screen controller and view touch position data sent from the controller.

Note:  Terminal mode is not available for USB controllers.

You do not need to use firmware commands in order to use your touch system.  Developers and support personnel can use firmware commands at their discretion to initialize the controller, select operating or touch modes, specify data formats, and execute diagnostic functions.

Caution:  If you are not familiar with the use of firmware commands, you should not be using this option.  Executing some commands may alter the performance of your touch screen or render it inoperable.  You should be aware of these results before executing these commands.

For a complete description of the available firmware commands, refer to your controller reference guide.

  Related Topics


Video Diagnostics

The Color Bars and Color Purity options let you test the monitor video output.  These options do not test the touch screen.  Typically, you do not need to use these options unless you are assembling or repairing touch screen monitors.

Note:  Advanced users may disable these video diagnostic tools using the [image] Advanced Touch Screen Settings dialog.

  Color Bars

  Color Purity


Color Bars

Note: Advanced users may disable these video diagnostic tools using the [image] Advanced Touch Screen Settings dialog.

When you select the Color Bars option, TouchWare displays 15 bars that span the color spectrum from black to white.

When examining the colors, check the following items:

•	Look at each color and ensure that it matches its description.

•	Look at the edges of each color bar and ensure that it does not bleed at the edge or spread into other colors.

If you notice problems, try adjusting the contrast and brightness controls on the monitor.  These controls help optimize color convergence.

If there are still problems with the video, you can continue to troubleshoot the problem by using the Color Purity option.  Remember that bad video indicates a hardware problem with the monitor or video card, not the touch screen.

  Related Topics


Color Purity

Note: Advanced users may disable these video diagnostic tools using the [image] Advanced Touch Screen Settings dialog.

Most CRT monitors have three electron guns (or signals) that send the primary colors — red, green, and blue — to the screen.  (The exception to this is flat panel monitors.)  The Color Purity option lets you test that each electron gun works properly.  You can test each primary color individually.  You can also test combinations of these colors to produce some of the same colors shown in the Color Bars option.

The advantage of the Color Purity option is that the color fills the screen.  You can check a color for a consistent appearance and saturation across the screen.  Click here [image] to learn how to produce each color by turning the color guns on or off.  For example, turn on red and blue to view magenta, or turn on green and blue to view cyan.

When viewing a color with the Color Purity option, look for the color to be uniform across the screen.  Shading, shadows, and distortion in the color indicate problems with the video.

Some monitors have a Degauss button.  If you notice any problems with the color, try pressing the Degauss button to recycle power and neutralize the magnetic field that builds up on the CRT.  Also, check that other monitor controls, such as the Text button or terminating switches, are set properly.  For more information on these controls, refer to the documentation for your particular monitor.

If there are still problems with the video, check that you reassembled the monitor properly.  Remember that video problems indicate a problem with the monitor or video card, not the touch screen.

  Related Topics


Color Table

Color	Red	Green	Blue

Black	Off	Off	Off

Blue	Off	Off	On

Cyan	Off	On	On

Green	Off	On	Off

Magenta	On	Off	On

Red	On	Off	Off

Yellow	On	On	Off

White	On	On	On

  Related Topics


Touch Screen Linearization

Note: This function is typically available for Pen systems only.  However, advanced users may enable linearization using the [image] Advanced Touch Screen Settings dialog.

To perform a 25-point linearization of the touch screen surface:

1	Make sure the video image is centered in the screen area using the horizontal and vertical controls.

2	Open the touch screen control panel and select the Tools tab.

3	Click Linearize. This will bring up 25 linearization targets on the screen.  A hand guides you through the linearization process pointing, in turn, to the next appropriate target.

Note: If you press Escape or do not touch the touch screen within 20 seconds, the system automatically cancels the linearization process with no change to the current settings.

4	Touch the touch screen and position your fingertip to completely cover the yellow target.  The area around the hand will begin to flash.  When the linearization completes, the Touch Enabled message will appear.

When touching the target, make sure you

•	Face the monitor directly.

•	Perform the linearization in the position (sitting or standing) you expect to use the touch screen.

•	Touch the target firmly and precisely with your fingertip.  Be careful to keep your other fingers away from the touch screen as you touch the target.

5	Repeat these instructions until all 25 targets have been touched.

6	A dialog will appear asking if you wish to continue. If so, the 25 targets will now be replaced with a set of 16 targets used to verify the linearization performed in steps 1 through 5.

7	Repeat the previous process for each of these targets.  This process automatically returns to the control panel once complete. If you are using a TouchPen, repeat the linearization procedure with the pen. The acceptable range of values is less than 1.5%.

To test the accuracy of the linearization process, use the Draw program [image] to draw some lines on the screen.  Check that they are smooth and thin.

To exit this program at any time during the process, press Escape.

  Related Topics


Troubleshooting Overview

If you are experiencing problems with the touch screen, check that all cables are connected properly and restart your system.

For cursor adjustments, you may need to:

•	Click here [image] to calibrate your touch screen

•	Click here [image] to define cursor offset

•	Click here [image] to stabilize the cursor

If your touch screen or mouse is not working, the communication settings may be incorrect.  If both devices are trying to use the same communication port or IRQ, a hardware device conflict will result.  The touch screen cannot share an IRQ with another device.

Verify that any previously loaded hardware/software that used the same COM port as your touch screen has been uninstalled.  Just because the hardware is disconnected doesn’t mean that the software isn’t claiming the port.  Ensure that all components are completely removed from the system files.

To correct the communication settings, use the Windows Hardware Conflict Troubleshooter from Windows Help.

Click one of the following buttons to learn more about Troubleshooting options.

  Touch Screen Status Lights

  What to do if...

  Error Messages


Contacting Technical Support

3M Touch Systems is committed to helping you get the most out of your touch screen by providing extensive Technical Support.

For information on how to contact Technical Support in your area, go to the Hardware tab [image] and select About TouchWare → Support Information.


Touch Screen Status Lights

Some touch screens have a light-emitting diode (LED) that indicates the status of the touch screen unit and monitors several diagnostic features in the unit. Note that there is no LED on a TouchPen controller or on any internally mounted controller.

When you first power up a touch screen monitor, the LED initially goes bright, then dim.  When you touch the screen, the LED should brighten again.

If you are experiencing problems with the touch screen, be sure to check the LED for status information.

•	If the LED remains bright when you are not touching the screen, there may be a problem with your hardware.

•	If the LED remains dim when you touch the screen, there may be a problem with your hardware.

•	If the LED continuously blinks, this is an indication that the power-on self-test failed.  A blinking status light usually indicates there is a problem with the controller hardware, such as a RAM error, ROM error or NOVRAM error.

•	If the LED is not lit, power is not being supplied to the controller.  If this is the case,

−	Check your power connections.

−	Check that the monitor is turned on.

−	Check that the keyboard power tap (optional) is connected.

−	Check that the power supply unit (optional) is plugged in.

Refer to your controller reference guide for more details.  Contact technical support for additional information.

  Related Topics


ThruGlass Troubleshooting

The ThruGlass touch screen should be sensitive to your touch and recognize a light touch.  If not, you may be experiencing one of the following problems.

•	If the controller responds or the cursor moves before you actually touch the screen — decrease sensitivity.

•	If you need to press hard to activate a touch or you need to use more than one finger to activate a touch — increase sensitivity.

•	If the cursor is erratic or jittery — adjust the controller frequency.

•	If the controller is registering random touch points — adjust the controller frequency.

•	If the cursor does not reach the edges of the video image — recalibrate the touch screen.

•	If the cursor is not located underneath your finger — recalibrate the touch screen.

  Related Topics


What to do if...

Cursor does not display on the screen after starting Windows

Cursor does not reach out to the edges of the screen

Cursor is jittery

Cursor jumps or bounces suddenly across the screen

Double-click on touch screen doesn't work

Drawing lines are not straight and smooth

Full screen DOS needed

Operating two serial devices

Pen controller not found

Touch delayed in Windows 2000 or NT

Touch is not working

Touch screen not found


Double-click on touch screen doesn't work

Use the Touch Settings tab [image] to adjust the double-click speed and area. The double-click speed defines how quickly you must touch the screen for the system to interpret your actions as a double-click.  Set the double-click speed in the slow to medium range for optimum performance with a touch screen. The tick mark on the bar indicates the default setting.

The double-click area defines the space in which you must touch the screen for the system to interpret your actions as a double-click.  Set the double-click area in the medium to high range for optimum performance with a touch screen.  The tick mark on the bar indicates the default setting.

Click on the spinning globe (Test) to test the double-click speed and area settings. If the MicroTouch Enabled logo begins to circle the globe, the touch screen recognized your touch as a double-click.

Note:  Changing this setting will affect the double-click setting of the mouse.


Operating two serial devices

If you have two serial devices operating together, such as a touch screen and a mouse, be sure each device uses a unique COM port and IRQ number.  For example, the mouse can use COM1/IRQ4 and the touch screen can use COM2/IRQ3.  Using the same COM port address or IRQ creates device conflicts.  The touch screen must have a unique IRQ; it cannot share an IRQ with another device.

Verify that any previously loaded hardware/software that used the same COM port as your touch screen has been uninstalled.  Just because the hardware is disconnected doesn’t mean that the software isn’t claiming the port.  Ensure that all components are completely removed from the System files.  Refer to manufacturer’s documentation for additional information.

Use the Microsoft Hardware Conflict Troubleshooter to try and resolve this problem.


Cursor does not display on the screen after starting Windows

Open the Cursor tab [image] and make sure that Cursor Visibility is enabled. Check the Windows control panel Mouse properties page to make sure that Touch Screen Hidden Cursors is not selected.  This is used to hide the cursor in Windows 2000 and NT systems.


Cursor does not reach out to the edges of the screen

Try calibrating [image] the touch screen.  When calibrating the screen, be sure you touch the center of each target firmly and precisely.

You may also want to turn on the Edge Adjustment in the Cursor tab [image].


Cursor is jittery

You need to stabilize the cursor by adjusting the controller frequency setting.  Click here [image] to run the Stabilize Cursor option.

Any time you adjust the frequency you should test how the touch screen is working and verify you are satisfied with the operation of the touch screen.  It is a good idea to calibrate [image] the touch screen again.


Drawing lines are not straight and smooth

You need to stabilize the cursor by adjusting the controller frequency setting.  Click here [image] to run the Stabilize Cursor option.

Any time you adjust the frequency you should test how the touch screen is working and verify you are satisfied with the operation of the touch screen.  It is a good idea to calibrate [image] the touch screen again.


Cursor jumps or bounces suddenly across the screen

You are most likely touching the screen in more than one spot at the same time.  Be sure to point and touch with one finger only.  Keep your other fingers away from the touch screen.  Do not rest your other hand on the monitor or bezel at the same time.


Touch delayed in Windows NT
Touch delayed in Windows 2000 or NT

In Windows 2000 and NT systems, TouchWare becomes active 10 to 15 seconds after the cursor appears when booting up your system.  If touch does not become active early enough to suit your application, you can manually adjust the serial device driver startup order.  These instructions are intended for use with a standard system.  If you have a custom driver for your serial ports and know which device driver controls your touch screen COM port, you can make changes at your own discretion.

Caution:  Make an Emergency Repair Disk (ERD) prior to making any changes to your system registry.  Refer to Windows Help for instructions on using the Repair Disk utility to make an emergency repair disk.

1	Log in to an account with administrator privileges.

2	Click on the Start button.

3	Point to Settings, and then click on Control Panel.

4	Double-click on Devices.  Scroll down through the list until you get to Serial.  Check to ensure that the Status is Started.

5	Select Serial in the list window, then click Startup...

6	Change the Startup type from Automatic to System. Click OK.

7	Restart your system in order for this change to take effect.


Full screen DOS needed

To run a touch application in a full screen DOS window in Windows 95 and Me, you must run the DOS touch screen driver DOSTOUCH.EXE before running your application.  You can create a batch file that automatically loads the touch screen driver and then runs your application.  See the TouchWare for Windows User's Guide for complete instructions.


TouchWare Error Messages

Some error messages that you might receive when using the touch screen include:

OK — Touch screen found and operational.

Touch screen not found — Touch screen not located.

A/D Error — Touch screen hardware error. (SMT2/TP4)

ASIC Error — Touch screen hardware error. (SMT2/TP4)

Hardware Error (HWD in USB) — Touch screen hardware error. (SMT3)

NOVRAM Error (B1 and/or B2 in USB) — Checksum error in NOVRAM, using defaults.

PWM Error — Touch screen hardware error. (SMT3)

RAM Error — Touch screen hardware error.

ROM Error — Checksum error in ROM.

CBL Error — Cable error in USB.

  Related Topics


NT Error Log
Windows 2000 and NT Error Log

1	Not enough memory is available for device \Device\PointerPort0
The driver failed to allocate non-paged memory.  This is an indication of very low memory resources.
What to do:  Configure more RAM memory.  The driver does not use much memory so it is likely that some other driver is the culprit.

2	Too many PointerPort devices are defined.  Could not create device: \DosDevices\MtsTch0.
There is a large upper limit (about 64) on the total number of pointing devices (mice, tablet, and touch screens) that are supported by the driver.
What to do:  Use fewer pointing devices.

3	Could not create DeviceMap entry for device \Device\PointerPort0
The driver failed to make an entry in the registry that identifies the driver to the operating system.  This may indicate a corrupt registry.
What to do:  Use your Emergency Recovery Disk to restore the registry.

4	Could not create symbolic link for device \Device\PointerPort0
The driver failed to make an entry in the registry that identifies the driver to user applications (i.e., the control panel).  This may indicate a corrupt registry.
What to do: Use your Emergency Recovery Disk to restore the registry.

5	Touch screen was not found on communications port \DosDevices\COM1 for device \Device\PointerPort0
The indicated COM port opened correctly, but no touch screen responded when the driver probed the serial port.  This is, by far, the most common error.
What to do:  Check to make sure the touch screen is connected and powered correctly.  Cycle the power on the touch screen.  Check the controller LEDs. Make sure the port number is correct. Use the Find Touch Screen button on the TouchWare control panel.

6	Touch screen was found, but failed to initialize properly for device \Device\PointerPort0
A touch screen responded on the given serial port, but did not pass all the initialization commands at boot time.
What to do:  Reboot.  Cycle touch screen power.  Call technical support with touch screen model number and TouchWare version number.

7	An internal error occurred in communications port for device \Device\PointerPort0
An error occurred in configuring COM port.
What to do:  Check that your serial driver is working correctly. Check that the COM port is enabled in the system BIOS.

8	Could not set timeouts on communications port \DosDevices\COM1, for touch screen device \Device\PointerPort0
An error occurred in configuring COM port.
What to do: Check that your serial driver is working correctly. Check that the COM port is enabled in the system BIOS.

9	Could not set baud rate on communications port \DosDevices\COM1, for touch screen device \Device\PointerPort0
An error occurred in configuring COM port.
What to do: Check that your serial driver is working correctly. Check that the COM port is enabled in the system BIOS.

10	Could not set line control on communications port \DosDevices\COM1, for touch screen device \Device\PointerPort0
An error occurred in configuring COM port.
What to do: Check that your serial driver is working correctly. Check that the COM port is enabled in the system BIOS.

11	Unknown operation was requested for communications port \DosDevices\COM1, for touch screen device \Device\PointerPort0
A bad command was issued to the COM port driver.
What to do: Check that your serial driver is working correctly. Restart the system.

  Related Topics


Touch is not working

The touch screen is not communicating with the controller.  Check the following items:

•	Make sure the touch screen controller is connected to the correct port.

•	Review the installation procedures and verify all hardware is properly connected.  Check the serial port and touch screen cable connections.  Check that the touch screen and controller cables do not have any kinks and that connector pins are not bent.

•	If your controller has an LED and you can see it, touch the screen to determine if the LED brightens to check for power.  If the LED is flashing, refer to the touch screen status lights for a list of possible errors.

•	Reset the touch screen and its controller.  Turn off both the computer and the monitor, wait a few minutes, and then turn on each device again.

•	If the touch screen is still not communicating after checking the hardware, verify that any previously loaded hardware/software that used the same COM port as your touch screen has been uninstalled.  Just because the hardware is disconnected doesn’t mean that the software isn’t claiming the port.  Ensure that all components are completely removed from the System files.

•	If the software has located the appropriate communication port, this field will contain a COM port number.  If the touch screen was not found this field will be grayed out and the Find Touch Screen button will be active.  Check to ensure that all cables are correctly fastened and click on Find Touch Screen to locate the COM port in use.


Touch screen not found

The touch screen is not communicating with the controller.  If TouchWare does not find the touch screen, check that the touch screen is connected properly, and then repeat the search.  Note that this option cannot search any COM ports in use by other applications.

Verify that any previously loaded hardware/software that used the same COM port as your touch screen has been uninstalled.  Just because the hardware is disconnected doesn’t mean that the software isn’t claiming the port.  Ensure that all components are completely removed from the System files.

Check the following items:

•	Make sure the touch screen controller is connected to the correct port.

•	Review the installation procedures and verify all hardware is properly connected.  Check the serial port and touch screen cable connections.  Check that the touch screen and controller cables do not have any kinks and that connector pins are not bent.

•	If your controller has an LED and you can see it, check the controller’s LED for power on.  If the LED is flashing, refer to the touch screen status lights for a list of possible errors.

•	Reset the touch screen and its controller.  Turn off both the computer and the monitor, wait a few minutes, and then turn on each device again.

•	If the touch screen is still not communicating after checking the hardware, run Find Touch Screen [image] again.

•	If the software has located the appropriate communication port, this field will contain a COM port number.  If the touch screen was not found this field will be grayed out and the Find Touch Screen button will be active.  Check to ensure that all cables are correctly fastened and click on Find Touch Screen to locate the COM port in use.

•	If you are trying to use COM 4, be aware that some older video chip sets incorrectly map I/O addresses.  TouchWare will only work with COM ports configured, recognized, operational and supported by Windows at the time of install.


Pen controller not found

You tried to set the pen mode, and either the pen or TouchPen controller is not properly connected, or you do not have a TouchPen controller in your system.  Check the following:

•	If you have a pen, make sure that it is properly plugged into your monitor.

•	If you have a TouchPen controller, review the installation procedures and verify all hardware is properly connected.


Touch Screen Options

The Touch Screen Options button covers functions added to the original TouchWare control panel.  Using this dialog enables you to further customize TouchWare to suit your setting.

Click one of the following buttons to learn more about Touch Screen options.

  Custom Touch Modes

  Site Defaults

  Custom Touch Sounds

  Advanced Touch Screen Settings


Custom Touch Mode

Custom Touch Mode provides three additional touch modes to the original Touch Modes found on the Touch Settings tab.  In fact, Custom Touch Mode enables you to reconfigure how the third Touch Mode button on the Touch Settings tab [image] works.  If you choose a Custom Touch Mode (Click, Touchdown or Liftoff), the button name will change from Button to Custom on the Touch Settings tab.  You must then select Custom to activate this choice.

  Button Mode

  Click Mode

  Touchdown Mode

  Liftoff Mode

Click here [image] for the standard touch mode options.


Button Mode (default Custom Touch mode)

This option is exactly the same as Button Mode [image] on the Touch Settings tab.


Click Mode

Click mode provides button operation only.  The touch screen sends a button-down, followed by a button-up to the operating system.  Drawing or dragging is not supported in this mode.

Note:  When you choose this mode, Button will change to Custom in the Touch Mode selection buttons on the Touch Settings tab [image].  You must then select Custom to activate this choice.

  Related Topics


Touchdown Mode

Touchdown Mode enables you to create an immediate button action as soon as you touch the screen.  In Touchdown Mode, you cause a button down at the cursor location, with a short pause and then a button up.  You can leave your finger on the screen but only a single touch is registered until you lift your finger off the screen and touch down again.

Touching the screen is equivalent to pressing and releasing the mouse button.  The action occurs as soon as you touch the screen.  This mode is best for button based applications (like a calculator). Drawing or dragging is not supported in this mode.

Note:  When you choose this mode, Button will change to Custom in the Touch Mode selection buttons on the Touch Settings tab [image].  You must then select Custom to activate this choice.

  Related Topics


Liftoff Mode

Liftoff Mode enables you to position the cursor where you want before creating a button action.  In Liftoff Mode, the cursor will follow your finger for more accurate touch.  When you want to select an item, lifting your finger off the screen will cause a button down, short pause, and then a button up to occur.

Touching the screen is equivalent to moving the mouse position.  The button down/button up action occurs when you remove your finger from the screen.  This mode is useful for applications requiring greater accuracy because it lets you carefully position the cursor prior to acting on it.  Drawing or dragging is not supported in this mode.

Note:  When you choose this mode, Button will change to Custom in the Touch Mode selection buttons on the Touch Settings tab [image].  You must then select Custom to activate this choice.

  Related Topics


Site Defaults

The Site Defaults option (for Windows 2000 and NT 4.0 administrators only) enables you to restore system defaults to either your Current Settings (site-specific) or the original Factory Settings when you select Restore Defaults from the Hardware tab [image].  This option does not restore calibration or frequency settings.


Custom Touch Sound

This option enables you to set the exact pitch and duration of the touch sound selected on the Touch Settings tab.

Note:  If you have selected No Beep on the Touch Settings tab [image], this option will be disabled.


ThruGlass Overview

After installing the ThruGlass touch screen and controller, use the ThruGlass tab to configure the touch screen for the current installation and environment.  When you select the ThruGlass Screen Type, you automatically set in motion a configuration process that sets the default sensitivity and determines the best frequency for your controller.

Use the ThruGlass tab to

•	Specify the size and type of ThruGlass touch screen you are using

•	Adjust the controller sensitivity

•	Test the operation of the ThruGlass touch screen

•	Run ThruGlass diagnostic tests

•	Adjust the controller frequency

Before you configure the ThruGlass touch screen, make sure the video resolution is appropriate for your touch application.

Choose from one of the following topics to learn more about ThruGlass options.

  Setting Up A ThruGlass Touch Screen

  Screen Type

  ThruGlass Sensitivity

  ThruGlass Diagnostics

  Calibrating the ThruGlass Touch Screen

  Testing the ThruGlass Touch Screen

  Adjusting the ThruGlass Video Resolution

  ThruGlass Troubleshooting


Setting Up a ThruGlass Touch Screen

Note:  You must have a keyboard or mouse attached to your system to initially configure your ThruGlass touch screen.

When you initially install TouchWare, touch is disabled until you specify the ThruGlass screen type in the ThruGlass tab.  You must use the keyboard or mouse to specify the ThruGlass screen type.

Before you configure the ThruGlass touch screen, make sure the video resolution is appropriate for your touch application.  Your monitor’s video card determines the available resolutions.

If you change video resolution or scan rate, a dialog box will automatically pop up advising you to reselect your screen type in order to optimize ThruGlass performance. If you change only the scan rate on a Windows 95 system, this message will not appear.  You must manually reset the screen type by selecting None and then the screen type.

You can set up multiple touch screens for use with your ThruGlass system.  The process is the same as it is for all monitors.  For instructions, see Multiple Monitors Overview.

  Related Topics


Screen Type

Note:  You must have a keyboard or mouse attached to your system to initially configure your ThruGlass touch screen.

If you are specifying the screen type for the first time, touch is disabled.  Use the mouse or keyboard to select the screen type.  Remember, do not touch the screen, keyboard or mouse once the configuration process has begun.

After you install the ThruGlass hardware, use Screen Type to specify the type of touch screen you are using.  3M Touch Systems makes different types of ThruGlass touch screens, such as 17-, 15-, 12-, or 10-inch screens.  Locate the part number on the touch screen cable at the lower right corner of the touch screen.  You will need this number to specify the touch screen type.

When you select the ThruGlass Screen Type, you automatically set in motion a configuration process that sets the default sensitivity and determines the best frequency for your controller.

  Related Topics


ThruGlass Sensitivity

The configuration process sets the default sensitivity which, in most cases, will be appropriate for the thickness of the non-conductive material (for example, glass or plastic) in front of the ThruGlass touch screen.  However, you can change this setting manually if you are not satisfied with the response of the ThruGlass touch screen.

•	If the controller responds or the cursor moves before you actually touch the screen, you should decrease the sensitivity.

•	If you need to press hard or use more than one finger in order to activate a touch, you should increase the sensitivity.

  Related Topics


Diagnostics
ThruGlass Diagnostics

Click on Diagnostics to determine whether your ThruGlass touch screen is working correctly. Before running these tests, you might want to make sure the ThruGlass is installed in its operational position, i.e., kiosk doors closed, artwork installed, monitor in final operating location, etc.

  Show Noise

  Show Base

  Show Depth

  Auto Frequency

  When to Adjust the Controller Frequency


Show Noise

The Noise Level indicates the amount of noise detected by the controller at the current frequency.  Ideally, the Noise Level should be less than 30.  Choose Auto Frequency to determine the best frequency for your controller.  If you are still unsatisfied with this setting, you can select a different frequency manually and retest.

The red line is a graphical representation of the noise level.  It should be positioned low and hold steady as shown in the screen below.

Note that touching the screen affects the noise level.  To obtain accurate readings of the overall system noise, do not touch the screen, keyboard or mouse during this process.

  Related Topics


Show Depth

Show Depth is a graphical representation of the amount of press needed to register a touch and activate an option from the touch screen.  The best values are above 125.  Overall, the higher the values, the better, without topping out the graph.

If you sweep your finger slowly from side to side and top to bottom across the screen, you should see that all bars reach a similar maximum height. The yellow bars indicate the maximum reading of any given bar.

The leftmost bars represent readings from the horizontal axis.  The rightmost eight represent the vertical axis.  There may be a slight difference in the average from these two groups.

  Related Topics


Show Base

Show Base shows the operating range of the controller.  Optimal levels should be over 400 and less than 1023.  The yellow lines represent peak holds.  All values should be in the top half of the screen.

If any bar is substantially different from its neighbor, there may be a problem such as metal near the sensor or a broken connection.  The exception to this is the change from the horizontal to vertical axis at bar 8, where you are likely to see a jump in height.  Touching the screen should show a reduction in height of all bars with the lowest reading being the touch point.

  Related Topics


Auto Frequency

The Auto Frequency function adjusts the operating frequency of the ThruGlass touch screen.  In general, you will not need to adjust the frequency once you have configured the touch screen.  However, if you are experiencing erratic or jittery cursor movement, ragged lines, or random touch points, you may want to use the Auto Frequency option and rerun the process.

You can manually set a new operating frequency, and then check the performance of the touch screen at that frequency setting.  Use the Auto Frequency slide bar to select and test the available frequency settings and determine the best frequency.  The range of frequency settings and the default setting depends on your installation.  You can adjust the ThruGlass sensitivity after changing the frequency.

Do not touch the screen, keyboard or mouse during this process.

  Related Topics


When to Adjust the Controller Frequency
When to Adjust the ThruGlass Controller Frequency

You should adjust the controller frequency any time the cursor movement is very erratic or jittery.  This is NOT a subtle movement.  The cursor will be very jumpy.  To test stability, use the Draw [image] program to draw some lines on the screen.  Check that they are smooth.  If the lines appear ragged, the frequency setting is probably not correct for your controller.

To adjust the controller frequency:

•	Open the ThruGlass tab.

•	Click on Diagnostics then click on Auto Frequency.

•	Do not touch the screen until the auto frequency process is complete.  Touching the screen influences the results of the frequency adjustment.

•	The results obtained from changing the frequency are not predictable.  If you choose a frequency setting that does not work, keep trying.  The next frequency setting (up or down) may be appropriate.

  Related Topics


Calibrating the ThruGlass Touch Screen

You should calibrate the ThruGlass touch screen after you have set the screen type and adjusted sensitivity and frequency.

Use the Calibrate tab to adjust the calibration of the ThruGlass touch screen.

  Related Topics


Testing the ThruGlass Touch Screen

Use the Test button to check that the ThruGlass touch screen is correctly responding to your touch.

To test the ThruGlass touch screen:

•	Open the ThruGlass tab.

•	Click on Test.  A dialog box prompts you to test the touch screen by touching the screen.  A target appears on the screen.

•	Touch the screen in several places and move your finger around the screen.  Touch the corners and edges of the screen.  The cursor should be steady and cursor movement should be smooth.  If you see erratic or jittery cursor movement or if the controller registers random touch points, readjust the controller frequency.

  Related Topics


Adjusting ThruGlass Video Resolution

3M Touch Systems recommends that you adjust the desired video resolution and scan rate before you configure the touch screen.  Adjusting the video resolution after configuring the touch screen can cause touch to be erratic.

If you change the video resolution or scan rate after configuring the touch screen, you will see a message advising you to reselect your screen type in order to automatically configure the sensitivity and frequency.  If you change only the scan rate on a Windows 9X system, this message will not appear.  You must manually reset the screen type by selecting None and then the screen type.

Alternatively, you can adjust the controller frequency by selecting the Auto Frequency button from the Diagnostics screen.

Values for each video resolution are stored in the system registry so you need only do this once for each video resolution setting.

  Related Topics


Video Resolution

Video resolution, i.e., 800x600 or 640x480, is also known as Desktop Area on the Settings/Control Panel/Display Properties Page.


Scan Rate

Scan rate is also known as Refresh rate depending on your video card.


Advanced Touch Screen Settings

Caution:  Executing these options may alter the performance of your touch screen or render it inoperable.  You should be aware of expected results before executing any of these options.  If you are not familiar with the outcome of these settings, you should not be using this option.

Click one of the following buttons to learn more about Advanced Touch Screen Settings options.

  Calibration Style

  Touch Orientation

  Disable Touch

  Touch Sensitivity

  Software Settings


Calibration Style

Caution:  Executing this option may alter the performance of your touch screen or render it inoperable.  You should be aware of expected results before executing any option.  If you are not familiar with the outcome of these settings, you should not be using this option.

The calibration process aligns the touch screen with the underlying video.  Specifically, calibration defines the dimensions of the active area of the touch screen and locates the center of the touch screen.  If the screen is improperly calibrated, the active area of the touch screen may not be aligned or may be unnecessarily small in size.

Once you calibrate for each video resolution, the information is saved by the touch screen.  Therefore, you do not need to calibrate the touch screen each time you start your system.

TouchWare provides 2 choices for calibration style:

•	2-point calibration is ideal for capacitive touch screens.

•	5-point calibration is recommended for resistive touch screens.


Touch Orientation

This is an information-only icon.

The Touch Orientation option is included for advanced users who alter the orientation of the touch screen in custom installations.  This orientation (or direction of the sensor mounted in the monitor) is determined the first time calibration is run.  Once TouchWare is installed, the calibration program automatically determines the correct sensor positioning.

The touch screen icon illustrates how your sensor is placed in your monitor. The white target indicates the location of the upper left corner of the touch screen.  Standard installation of the touch screen sensor matches this upper left corner point to the monitor.


Disable Touch

Caution:  Executing this option may alter the performance of your touch screen or render it inoperable.  You should be aware of expected results before executing any option.  If you are not familiar with the outcome of these settings, you should not be using this option.

This option allows you to disable touch functionality.  The only way to restore touch is with a keyboard or mouse.  This setting will remain in effect until you reboot your system.


Touch Sensitivity

Caution:  Executing this option may alter the performance of your touch screen or render it inoperable.  You should be aware of expected results before executing any option.  If you are not familiar with the outcome of these settings, you should not be using this option.

The configuration process sets the default sensitivity that, in most cases, will be appropriate for your touch screen.  However, you can change this setting manually if you are not satisfied with the response of the touch screen.

•	If the controller responds or the cursor moves before you actually touch the screen, you should decrease the sensitivity.

•	If you need to press hard or use more than one finger in order to activate a touch, you should increase the sensitivity.


Software Settings

Caution:  Executing these options may alter the performance of your touch screen or render it inoperable.  You should be aware of expected results before executing any option.  If you are not familiar with the outcome of these settings, you should not be using this option.

•	Enable Noise Filter — use to correct grounding problems

•	Enable Linearization — activates 25-point linearization for use when viewable/touchable area is smaller than full screen

•	Disable Splash Screen — enabled on startup for advanced users

•	Disable Calibration Reminder — for advanced users, this option allows users to turn off the automatic calibration reminder message

•	Disable Calibration Verification — for advanced users, this option allows users to turn off the automatic calibration and linearization verification messages

•	Disable Calibration Updates — for advanced users, this option allows users to turn off the automatic calibration update to the controller whenever there is a change to the monitor resolution.

•	Enable Video Diagnostic Tools — this option allows users to turn on color testing

•	Enable Touch Modes — this option allows users to turn on additional touch modes in a multiple monitor setup


Multiple Monitors Overview

Use this tab to set up more than one touch screen with your system.  TouchWare can support up to four touch screens.  Also, you can include a combination of touch monitors and standard (non-touch) monitors with your system. Note that while you can mix PS/2 and serial controllers in multiple monitor setups, you cannot mix USB controllers with either serial or PS/2. Click on any of the topics below to learn more about Multiple Monitors.

  Setting Up Multiple Touch Screens

  Checking System Requirements for Multiple Monitors

  Connecting Multiple Monitors and Touch Screens

  Configuring Windows for Multiple Monitors

  Installing TouchWare for Multiple Monitors

  Mapping Multiple Touch Screens

  Calibrating and Configuring Multiple Touch Screens

  Related Topics


Configuring Windows for Multiple Monitors

For dual head video cards, you may have to further configure using the Advanced tab from the Windows Control Panel. Consult your video card documentation for additional details.

To configure Windows to support multiple monitors:

1	Open the Windows Control Panel and double-click the Display icon.

2	Select the Settings tab.

3	Activate each monitor by selecting it and then checking Extend my Windows desktop onto this monitor (or by right-clicking the monitor icon and selecting Enable).

4	Display each monitor’s label by clicking Identify (or by right-clicking its icon and selecting Identify).

5	Click and drag the monitor icons to position them according to the physical layout of the monitors.

  Related Topics


Mapping Multiple Touch Screens

Once you install TouchWare, you must map each touch screen to a monitor using the Map Touch Screens button from the Multiple Monitors tab. You must do this in order to individually calibrate and configure each touch screen connected to your system using the TouchWare Control Panel. Once you have properly mapped the touch screens, you set the current touch screen by selecting the icon of the desired monitor from the TouchWare Multiple Monitors tab.  In multiple touch screen configurations, touch screen properties are applied only to the currently selected touch screen.

To map multiple touch screens, open TouchWare and click on the Multiple Monitor tab. The screen should reflect your current monitor setup. Either a single monitor, mirrored monitors or tiled monitors. Refer to the TouchWare User Guide for further information.

Note:  Sometimes the arrangement of the touch screens shown on the Multiple Monitors tab may not bear any resemblance to the arrangement portrayed on the Windows Control Panel. This screen appears when using dual head video cards and TouchWare is not able to detect the proper monitor layout. Select the appropriate layout, click OK and proceed to mapping.

  Related Topics


Calibrating and Configuring Multiple Touch Screens

You use the TouchWare Properties page to calibrate and configure each touch screen connected to your system.

To calibrate and configure the touch screens:

1	Double-click the TouchWare icon in the Windows Control Panel.

2	Click the Multiple Monitors tab. Monitors with touch screens are indicated by a small green square located at the bottom right of each monitor icon.  Monitors without touch screens display a small orange square.

3	Click on the monitor you wish to modify and use the tabs in the TouchWare Properties dialog box to calibrate and configure each touch screen.  For more information on the configuration settings, refer to Chapter 2 of the User Guide.

For the most part, TouchWare Properties apply to individual touch screens.  The only exceptions to this are the double-click and cursor visibility settings, which are applied globally.

4	Repeat for each touch screen connected to your system.

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Opening TouchWare Properties

Opening TouchWare Properties dialog box.


Setting Up Multiple Touch Screens

TouchWare can support up to four touch screens. You can also use a combination of touch monitors and standard (non-touch) monitors with your system.  For example, you may have a total of five monitors, only four of which have touch screens.

Note:  You must install the hardware and software required to support multiple monitors before installing TouchWare.  Also, for serial controllers, if you set up and subsequently decide to change your multiple touch screen configuration, you must uninstall and reinstall TouchWare.

Setting up multiple touch screens involves these steps:

  Checking System Requirements for Multiple Monitors

  Connecting Multiple Monitors and Touch Screens

  Configuring Windows for Multiple Monitors

  Installing TouchWare for Multiple Monitors

  Mapping Multiple Touch Screens

  Calibrating and Configuring Multiple Touch Screens

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Connecting Multiple Monitors and Touch Screens

Note: For USB configurations, you should not connect the touch screens until you have installed TouchWare.

To connect multiple monitors and touch screens to your system:

1	Shut down your system.

2	Install additional video cards, if required.

3	Connect each monitor to a video port in your system.

4	Apply power to your system and monitors.  Windows should detect the new video adapters and load the appropriate display drivers.  If not, consult the video card documentation.

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Checking System Requirements for Multiple Monitors

The system requirements for multiple touch screens are as follows:

•	Windows 2000, Windows 9X, or Windows Me (for serial and PS/2)
Windows 2000, Windows Me or Windows 98 (for USB)

•	Up to 4 single-port video adapter cards or 1 or 2 dual-head video adapter cards

•	Either a COM port or a USB port for each touch screen
PCs typically include two COM ports and 2 USB ports.  You must verify that all previously installed hardware or software that used any COM port you intend to use for a touch screen has been disconnected and completely uninstalled.

Note: You cannot share COM ports using a “Y” adapter.

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Installing TouchWare for Multiple Monitors

You do not need to do anything special to install TouchWare for multiple touch screens.  During installation, TouchWare will search all available COM ports to determine your setup for you. You can then make selections to customize each touch screen from the TouchWare Control Panel.

For serial and PS/2 controllers:
Before installing TouchWare, make sure all serial  and PS/2 touch screen monitors are connected and operational.  The install program will search for available COM ports and touch screens and configure only the number of touch monitors found during installation.

For USB controllers:
The opposite is true for USB controllers. Do not connect USB controllers until TouchWare is installed. Once you have installed TouchWare, plug in all USB touch monitors prior to opening the TouchWare Control Panel.

Note: If you have previously loaded TouchWare, you must completely uninstall the software and reboot your system prior to reinstalling.

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