Category : Windows 3.X Files
Archive   : SDLDISK2.ZIP
Filename : ACCESS.WRI

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The Trace Access Pack
for Windows 3.0

Developed by:
The Trace Research and Development Center
University of Wisconsin-Madison

The Trace Access Pack contains device drivers that
make Windows accessible to users who might otherwise not be
able to use Windows. These device drivers are designed
primarily for computer users who have difficulty using a
standard keyboard or mouse. Other users might also find
these drivers useful.

Organization of this Document

What the Access Pack Contains
Using Access Pack Features with Windows 3.0
Using Access Features with Non-Windows Applications
Pressing Single Key Combinations with One Finger, Headstick, or Mouthstick
Slowing Down the Keyboard
Selecting and Changing SlowKeys and RepeatKeys Settings
Using the Previous Settings
Using the Predefined Settings
Customizing Your Settings
Controlling the Mouse Cursor with Your Keypad
Checking the Status of Toggle Keys
Using the Access Utility
Using an Alternate Input Device with Windows 3.0
Using a Communications Aid
Connecting an Aid to Your Computer
Configuring Your Aid for Serial Transmission
Programming Your Aid to Communicate with Windows 3.0
Typing Keys on Your Computer
Using Escape Sequence Mode
Using Modifier Keys (SHIFT, CTRL, ALT)
Review of Keyboard Input
Using the Mouse Commands
Moving the Cursor
Clicking the Mouse
Changing the Baud Rate
Handling Errors
SerialKeys Command Summary
Keyboard Escape Sequences

What the Access Pack Contains

The Access Pack consists of the following files:

Filename Contents

ACCESS.EXE TRACE Access Utility

AP-KBD.DRV TRACE Access driver for
standard keyboards

AP-KBDHP.DRV TRACE Access driver for HP
keyboards

AP-KBDOLI.DRV TRACE Access driver for
Olivetti keyboards

AP-MOU.DRV TRACE Access driver for
Microsoft or PS/2 mouse

ACCESS.WRI This document

These device drivers enable users who have problems using
the standard keyboard and mouse to use Windows and Windows
applications.

You can install these drivers on your system. They replace
standard drivers already in use. You can install the Access
drivers on any Windows 3.0 system. They behave exactly like the
standard drivers and should not interfere with normal use.

The Access Utility allows you to specify settings for the
Access Pack features. You must run this utility to use the
SerialKeys function, described later in this document.

The Access Pack drivers are particularly useful for
computers that are used by the public or by multiple users.
Most user with disabilities will likely be able to use the
system the first time without assistance.


Using Access Pack Features with Windows 3.0

This section describes the Access Pack features that allow
users to interact more easily with Windows 3.0.

StickeyKeys: Temporarily locks down the SHIFT, CTRL, or ALT
key so that a user can type a key combination (such as
ALT+TAB) using just one finger, a headstick, or a mouthstick.

RepeatKeys: Allows the user to adjust how much time can pass
after a key is pressed before a character is repeated on the
display. Also allows the user to adjust the rate at which
characters are repeated on the display.

SlowKeys: Allows the user to adjust how much time passes
before the keyboard accepts a key and send it to the
computer (in other words, the keyboard's repsonse time).

MouseKeys: Allows the user to control the mouse cursor with
the numeric keypad.

ToggleKeys: Provides sounds that tell the user the status of
keys that toggle (such as CAPS LOCK, NUM LOCK, and SCROLL
LOCK).

Serial Keys: Provides transparent keyboard and mouse access
for people who use communication or computer access aids.

Using Access Features with Non-Windows
Applications

The Access features will function only with Windows and
Windows-based applications. You can run non-Windows
application from inside Windows, but they cannot take
advantage of the Access features.

If you need similar features for non-Windows applications,
you will need to use other utilities. For example, a
memory-resident program called 1-Finger is available from
the Trace Center. This program provides the StickeyKeys feature
for non-Windows applications.

If you are running Windows 3.0 in 386 enhanced mode, you can
use the SerialKeys feature to send keystrokes to non-Windows
applications that are running in a window. See the Microsoft
Windows User's Guide for more information on the Windows 3.0
operating modes and running non-Windows applications in a
window.

Pressing Single Key Combinations
with One Finger, Headstick or Mouthstick

Some users have difficulty holding down more than one key at
a time. This makes it impossible to press key combinations,
such as CTRL+A, which are required by some applications.

The StickeyKeys feature allows the user to use key combinations by
temporarily locking down a modifier key (SHIFT, CTRL, or
ALT).

To turn on StickeyKeys, tap either SHIFT key five times
(without disturbing the mouse). When StickeyKeys is
activated, you will hear a rising sound or up-siren. To
turn off StickeyKeys, tap either SHIFT key five times. When
StickeyKeys is deactivated, you will hear a falling sound or
down-siren.

To turn on StickeyKeys:
---------------------------------------
* Press either SHIFT key five times without touching other
keys or the mouse.

You will hear an up-siren, which indicates that
StickeyKeys is on.

There are two ways to use StickeyKeys. You can momentarily
lock a modifier key down to enter one key combination. In
this case, the modifier key is automatically released after
you enter the second key in the combination.

Or you keep a modifier key locked down until you manually
release it. This allows you to enter a series of key
combinations in a row without having to relock the modifier
key every time.

To simulate a single key combination with StickeyKeys:
----------------------------------------------------------------------------------------
1. Press the modifier key.

You will hear a low beep and then a high beep, which
indicate that the modifier key is now temporarily locked
down.

2. Press the other key in the key combination.

Windows will respond as if you had pressed the modifier
key and the second key at the same time. Both keys are
then released.

For example, if you press SHIFT, you will hear a
low and high beep. If you then press A, an "A"
would appear on the display. But the modifier only
applies to the following key. Therefore, if you press A
again, a lowercase "a" would appear on the screen.

You can use multiple modifiers in a key combination. For example,
to enter CTRL+ALT+G, you would press CTRL once, then
press ALT, and then press G.

To simulate a series of key combinations with StickeyKeys:
----------------------------------------------------------------------------------------------
1. Press the modifier key twice in a row.

You will hear a combination of low and high beeps after
the first time you press the modifier key. After the
second time, you will hear a single high beep. These
sounds indicate that the modifier key is now locked down
until you manually release it.

2. Press the keys that accompany the modifier key.

3. Press the modifier key once again.

You will hear a single low beep, which indicates that the
modifier key is no longer locked down.

For example, if you press CTRL twice, you will hear a low
beep and then a high beep. The CTRL key is locked down
and will stay locked until you hit it again.

You can also lock more than one modifier key at a time.

To turn off StickeyKeys:
---------------------------------------
* Press the SHIFT key five times.

You will hear a down-siren, which indicates that
StickeyKeys is off.

If the Two Key Turn Off option is on (in the Access Utility),
you can turn StickeyKeys off by pressing a modifier key
and any other key at the same time.


Slowing Down the Keyboard

Some users might find it difficult to use a keyboard because
it responds too quickly to their input. The SlowKeys and
RepeatKeys functions give you more time to
enter the correct characters on your keyboard.

SlowKeys helps users who do not have enough motor control to
press a key without accidentally pressing adjacent keys.
SlowKeys allows you to filter out accidental keystrokes by
delaying the keyboard before it sends a keystroke signal to
the computer. This delay gives you more time to press the
desired key.

SlowKeys and RepeatKeys are normally turned on and
adjusted using the Access Utility. Users who cannot use
the computer without SlowKeys and RepeatKeys can
invoke special fallback (very slow) settings when they
turn these features on. Then, with the keyboard slowed
down, they can use the Access Utility to set the desired
values. For more information, see the next section, "Selecting
and Changing SlowKeys and RepeatKeys Settings."

The RepeatKeys feature controls the repetition of characters
on the display when a user holds down a key. This feature
works in two ways.

First, it gives the user more time to release a key before
the system repeats the character on the screen. You can
also disable character repetition altogether by starting
RepeatKeys with one of the fallback options. These options
are described later in this section.

You can specify repeat delay rates by using the Access
Utility, which is included in this package.

Second, RepeatKeys slows the rate at which
characters are repeated on the screen when a key is held
down. (Windows Control Panel also allows you to slow down
the repeat rate, but the slowest level it permits might not
be adequate for some users.) To make RepeatKeys effective,
you should set the repeat rate in Windows Control Panel to
the slowest possible value. Do this by choosing the Keyboard
icon from the Control Panel window.

The SlowKeys and RepeatKeys functions are activated together.

To turn on SlowKeys and RepeatKeys:
-------------------------------------------------------------

* Press ENTER and hold the key down for about 8 seconds.

After about 4 seconds, the user will hear three short
beeps that notify him or her that the functions are about
to take effect. This warning gives the user a chance to
release ENTER and not start the functions.

About four seconds later, SlowKeys and RepeatKeys start
and the computer produces a single up-siren. At this point,
the previously saved settings will take effect.

To use fallback settings for SlowKeys, you will need to
hold down ENTER for more than eight seconds. For more
information, see the section "Using the Fallback
Settings" later in this document.

To turn off SlowKeys and RepeatKeys:
--------------------------------------------------------------
* Press ENTER and hold the key down for about 8 seconds.

After about 4 seconds, the user will hear three short
beeps that signal that the functions are about
to be turned off. This warning gives the user a chance to
release ENTER and not turn the functions off.

About four seconds later, SlowKeys and RepeatKeys turn off
and the computer produces a single down-siren.

Some applications will be adversely affected if the user
holds down the ENTER key for eight seconds while they are
running. For example, if the user is editing a file in
Write, holding down ENTER will cause many empty paragraphs
to be inserted into the current document. For this reason,
it is important to notice which application has the focus
when the user starts SlowKeys and RepeatKeys. Normally,
these functions are turned on and off using the Access
Utility or when you first start up the system.

When SlowKeys is active, the computer will produce a soft
click sound whenever a key is pressed. The click serves to
remind you that the response of the keyboard has been slowed
down, and that the keyboard is not broken. A second click, when
the key is accepted, provides an audible computer response,
which can be very useful for people who have difficulty looking
at the monitor while typing.

Selecting and Changing SlowKeys
and RepeatKeys Settings

The settings (delay times, repeat time) that SlowKeys and RepeatKeys
uses depend on how you start these features. You have three options:

* Using the previous SlowKeys settings

* Using one of two fallback settings

* Customizing your own settings

The following sections explain how each of these three
methods works.

Using the previous settings

You can accept the default settings by starting SlowKeys
using the method described in the previous section. The
default values are those saved by the last person who used
the Access Utility to customize his or her settings. If no
customized values have been saved, the default values are 1
second for the keystroke delay, 1 second for the repeat
delay, and 0.5 seconds/repetition for the repeat rate.

Using the fallback settings

Besides the default setting, SlowKeys comes with two
fallback settings that do not change. Both options turn
off character repetition. In other words, if you use a
fallback option, your system will not repeat a character
on the screen no matter how long you hold down the key. The
delays for sending a keystroke to the system are as follows:

Option Key Delay Repeat Delay

1 none repetition turned off

2 2 seconds repetition turned off

To use Option 1, start SlowKeys by holding down the ENTER
key until you hear the double up-siren (about four seconds
after you hear the single up-siren).

To use Option 2, start SlowKeys by holding down the ENTER
key until you hear the triple up-siren (about four seconds
after you hear the double up-siren).

The purpose of these two fallback options is to allow users with
severe motor-control problems to be able to operate the computer
effectively enough to launch the Access Utility, in which they
can set the preferred values.

Customizing your settings

If the default settings and the fallback setting do not
suit your needs, you can customize your settings by running
the Access Utility, which is included with this package.

You can also use the Access Utility to switch to either
fallback option without having to turn off SlowKeys. To do
this, select the SetUp Option 1 or SetUp Option 2 check box.
If you do not want to use one of these options, make sure
these check boxes are not selected.


Controlling Your Mouse Cursor
with Your Keypad

Some users cannot control a mouse. Using the MouseKeys
feature, you can control the mouse cursor by using the
numeric keypad on your keyboard.

MouseKeys can be used with other Access features.

To turn on MouseKeys:
--------------------------------------
* Press and hold the left ALT, left SHIFT and NUM LOCK
keys in that order. Then release all three keys at once.

You will hear an up-siren, which indicates that MouseKeys
is on.

If you type with one finger, a mouthstick or headstick,
the easiest way to activate MouseKeys is to first activate
StickeyKeys by pressing the SHIFT key five times.
You can then press the left ALT key, the left SHIFT key
and the NUM LOCK keys in sequence to turn on MouseKeys.

To turn off MouseKeys:
--------------------------------------
* Press NUM LOCK.

You will hear a down-siren, which indicates that MouseKeys
is off.

MouseKeys functions by turning the numeric keypad (at the
right end of most keyboards) into a set of mouse control
keys.

The keys labeled 1 through 4 and 6 through 9 are used to
move the cursor. The following table describes the function
of each of these keys.

Key Where Cursor Moves
1 Down and Left
2 Down
3 Down and Right
4 Left
6 Right
7 Up and Left
8 Up
9 Up and Right

If you just tap a mouse movement key, the cursor will
move one pixel in the specified direction. If you press
and hold one of these keys, the cursor will move continuously
in the specified direction--slowly at first, and more quickly as
you continue to hold down the key. When it reaches a
maximum speed, the cursor will continue to move at that
speed until the key is released.

The remaining keys on the numeric keypad control the mouse
buttons. The following table describes the function of each
of these keys:

Key Function
/ Selects the left mouse button as the default
* Selects the left mouse button as the default
- Selects the right mouse button as the default
5 Clicks the default mouse button
+ Double-clicks the default mouse button
0 Presses and holds the default mouse button
. Releases the default mouse button

To use the mouse button keys, you must first select a
default button by pressing the /, * or - key. Then you can
click, double-click, hold, or release that button by using
the 5, +, 0 or . keys, respectively.


Checking the Status of Toggle Keys

Some users cannot see the indicator lights on a keyboard.
These lights normally tell users whether the toggle keys
(CAPS LOCK, NUM LOCK and SCROLL LOCK) are on or off. In
addition, some keyboards do not have such lights.

In either case, you can use the ToggleKeys feature to find
out whether the toggle keys are up or down. Whenever you
press one of these keys, an audible tone will tell you the
key's status.

When ToggleKeys is on, you will hear a tone each time you
press the CAPS LOCK, NUM LOCK or SCROLL LOCK keys.
A high beep indicates that the key is on. A low beep indicates
that the key is off.

To turn on ToggleKeys:
---------------------------------------
* Press and hold the NUM LOCK key down for five seconds.

You will hear an up-siren which tells you that ToggleKeys
is on.

To turn off ToggleKeys:
---------------------------------------
* Press and hold the NUM-LOCK key down for five seconds.

You will hear a down-siren which tells you that ToggleKeys
is off.


Using the Access Utility

The TRACE Access Utility (ACCESS.EXE) allows you to
customize the settings for each of the Access features, such
as SlowKeys key delay or MouseKeys speed.

In addition, you run the Access Utility to use the
SerialKeys feature.

To make this program readily available to you, add a program
item icon for the Access Utility into your Program Manager
window. For more information, see Chapter 4 in the Windows
User's Guide.

If you are configuring a public machine where memory is not
usually going to be a limiting factor, you might consider
configuring Windows to start the Access Utility automatically when
Windows is started. You can do this by adding a LOAD=ACCESS.EXE
entry to your WIN.INI file. For more information, see the online
document WININI.TXT in your Windows directory.

The Access Utility has two menus: the File menu and the
Adjust menu.:

The Adjust menu contains six commands. Five of the commands
--StickeyKeys, SlowKeys, MouseKeys, ToggleKeys and
SerialKeys--allow you to specify settings for the corresponding
features. You can also use these commands to turn the
features on and off, instead of using the keyboard commands.

The sixth command, Time Out, allows you to configure the disability
access features so that they automatically turn off when the
computer has been idle for a specified length of time. This
will prevent users from being confused when they come to a
machine and forget (or don't know) that the Access features
are turned on.

The File menu contains three commands: Save Parameter
Changes to Disk, About Access, and Help.

You can use the Save Parameter Changes to Disk command to
retain any changes you made to other Access settings, even
when you exit and restart Windows. If you do not use this
command, your changes will last only until the next time you
exit Windows.

The About Access gives you some basic information about
Access. The Help command gives you a quick reference of the
keyboard commands used to turn each of the features on and
off.

Using an Alternate Input Device
with Windows 3.0

The SerialKeys feature allows an alternate input device,
such as a communications aid or a computer access aid, to control
the computer by simulating mouse and keyboard input. You
can connect any compatible communications aid or computer access
aid to the serial port on the back of your computer, and begin
using the Windows system without any further setup.

The SerialKeys feature uses the General Input Device
Emulating Interface (GIDEI) Standard set of commands. The
most commonly used commands are described in the remaining
sections, and the remainder are listed in the SerialKeys
Command Summary at the end of this document.
A more detailed technical specification for the GIDEI
Standard can be obtained from the TRACE R&D Center at the
University of Wisconsin.

Using a Communication Aid

To work with Windows 3.0, your communication aid must allow
you to program sentences and control characters in its
selections, which can then be transmitted out a serial port.
The aid must have an RS-232 serial port and must be able to
transmit ASCII characters at 300 baud. You can shift to a faster
rate later, if you want.

Connect the aid's serial port to the serial (COM) port on
the computer to enable the two devices to communicate with
each other.

The best way to determine whether or not your communication
aid or computer access aid meets these requirements is to
check the manual that came with the aid or to call the
manufacturer.

Connecting an Aid to Your Computer

Connecting a communication or computer access aid to your
computer is very easy. Connect a serial cable from your aid
to the COM port, usually located at the rear of your
computer. This port might be labeled "Com Port 1" or "Com
Port 2"; it might be labeled with a graphic picture
representing a stream of 0s and 1s, or it might be
unlabeled.

Windows can work with either the COM1 or COM2 port, but
defaults to COM1. If you connect your aid to COM2, you will
have to adjust the SerialKeys settings by using the Access
Utility.

Obtain the proper serial cable from the manufacturer of your aid.

Your aid might require an adapter to match the connector on
your computer. Look to see that both connections have the
same number of pins before investing in a serial cable.
Most computers use 9-pin connectors for serial ports and 25-
pin connectors for parallel ports, but some, such as IBM
PS/2 systems, use 25-pin connectors for both types of ports.
Make sure the connector is actually a serial port before
connecting your aid.

It is a good idea to read the manuals that came with your
aid and your computer. If the aid has a serial port on it,
the manual should describe how to connect the aid to other
devices. If the computer has a serial (COM) port, the
computer's manual should describe how to connect other
devices to it. Often, there is a section on connecting the
aid or computer to external devices such as serial speech
synthesizers, printers, and keyboard emulating interface
devices. The manual will usually tell you what cable and/or
adapter you will need to connect your aid to these devices.
If you're still not sure what cable to use, call the
manufacturers or dealers for your aid and your computer.

Configuring Your Aid For Serial Transmission

In order for your aid to communicate with your computer
running Windows 3.0 the first time you start up, the aid
must be configured as follows:

Baud rate: 300
Start bit: 1
Data bits: 8
Stop Bit: 1
Parity: none

Check your aid's manual to determine how to configure it in
this manner. In addition, most aids have a special
selection or switch for causing the characters stored in
your aid to be transmitted out the serial port. Make sure
this function is turned on.

Other aids require you program special codes to set up the
serial port. Read your manual to find out how to do this.

Once you have connected your aid to the computer and started
communicating, you can adjust the baud rate to allow higher
transmission speeds. This procedure is described in the
section "Changing the Baud Rate" later in this document.

Programming Your Aid to Communicate
with Windows 3.0

Once you have connected and configured your aid to
communicate with the computer, you can use your aid to send
input to the computer.

Typing Keys on Your Computer

Each key on your computer keyboard is given a keyname. You
must program a keyname into your aid in order to use that
key.

Many of the keynames consist of a single character. To type
that key, you just send that single character. For example,
to type the word "hello", you simple select the "h" keyname,
the "e" keyname, the "l" keyname, another "l" keyname, and
an "o" keyname. Most aids have all of these single-
character keynames programmed into them so there is no
additional programming for you to do for these keys.

For the keys that do not have a single-character keyname,
you have to surround the keyname with special characters to
alert SerialKeys that you are specifying a single key.
These special characters are the ESCAPE character and the
PERIOD (.) character.

The PERIOD is used to indicate to SerialKeysthe end of
keynames.

The ESCAPE character is a special character that belongs to
a group called Control characters. The ESCAPE character
usually can be generated on your aid by selecting the
Control function along with the left bracket ([), as
"CONTROL [". For information on generating an ESCAPE
character, see the manual that accompanied your aid. The
ESCAPE character indicates to SerialKeys the start of keynames
that are not a single letter.

The rest of this manual will refer to the ESCAPE character
as .

Using Escape Sequence Mode

If you look at the computer keyboard, you will find that
there are many keys without single-character keynames that
allow you do things other than type characters (for example,
the CTRL and ENTER keys). To type these keys, you must
include the and PERIOD characters.

To type them, you have to switch SerialKeys into the Escape
Sequence Mode by sending SerialKeys an escape character.
The escape character is just a special ASCII (American
Standard Code for Information Interchange) character. In a
previous section, this manual talked about programming an
escape character on your aid by selecting the CONTROL and
then the left bracket ("[") . When you do this, the aid
will send the special escape code (number 27) to the
computer and SerialKeys will switch it to this mode. Once
you are in this mode, you then have to tell SerialKeys the name
of the key that you want to type. Finally, you send the
PERIOD character to terminate the command, and SerialKeys will
type the character you requested.

For example, to send a RETURN (or ENTER) key, enter:

ret .

The escape character comes first, followed by the name of the
key that you want to press (ret is short for the RETURN key),
and then by a period.

Because these sequences are somewhat long (to make them
easier to read and remember) you will want to program the
entire sequence into a single selection on your aid. Then
you can label this selection RETURN and have it ready when
you need this key. In fact, you will probably want to
program the escape sequences for all the special keys on
your keyboard into selections on your aid. The time spent
doing this will be made up many times once you begin using
your aid to access the computer.

At the end of this document is a list of the escape
sequences for every special key on the keyboards that
SerialKeys can emulate. You can just copy them letter by
letter (remember to use the commas and period at the end) as
they appear in this document.

You will notice some keys have additional commands in their
syntax. Modifier keys, such as SHIFT and CTRL, work
differently than do other keys. They are generally used
in combination with other keys. You must use a slightly different
approach to use these modifier keys.

Using Modifier Keys (SHIFT, CTRL, ALT)

Often, it is necessary to hold a key down while typing
another key. For example, you must hold down SHIFT to type
an uppercase character. To do this using a communications
aid, you use the hold command. When the hold command is
sent, SerialKeys will wait until the operator selects a
second key. At that time, it will hold the selected
modifier key down, type the second key, and then release the
modifier key. The following examples illustrate the result
of escape sequences that include the hold command.

Escape Sequence Result

,hold,shift.a A (types SHIFT+A)


,hold,alt.F Open the File menu in
Windows Program
Manager (types ALT+F)

,hold,ctrl.,esc.
Switch to Task Manager in
Windows if in Program
Manager
(types CTRL+ESC)

Review of Keyboard Input

1. To type ASCII characters, just select them on your aid.

2. To type keys that don't have single-character names, you
have to program escape sequences into your aid. The format
for these escape sequences is as follows:

.

For example, the following escape sequence is equivalent to
pressing the BACKSPACE key:

backspace.

3. To use special keyboard commands, you have to program the
escape character using the following format:

, , .

For example, the following escape sequence is equivalent to
holding down the SHIFT key until the next character is
typed:

,hold,shift.


Using the Mouse Commands

In order to use the mouse, you must use the various mouse
commands with the Escape Sequence mode. The commonly used
commands are described in this section, and additional
commands are listed in the SerialKeys command summary later
in this document.

NOTE: The Access mouse driver must be loaded; otherwise,
mouse commands will have no effect.

Moving The Cursor

To move the mouse, use the move command. The move command
takes two numbers after it: first the motion in the
horizontal direction and then the motion in the vertical
direction. There must be either a "+" or "-" sign before
the number. Positive numbers move the mouse pointer to the
right or down. Negative numbers move the mouse pointer left
and up, as illustrated in the following examples:

Escape Sequence Result

,move,+10,-20. Moves 10 pixels to right
and 20 pixels up

,move,-10,+20. Moves 10 pixels to left
and 20 pixels down

,move,+0,-10. Moves 0 pixels to right
and 10 pixels up

It's a good idea to program a series of commands to move the
mouse in the four directions by 1, by 10, and by 100 pixels.
This will allow you to make small, fine movements and large,
fast movements.

Clicking the Mouse

In order to click the button on a mouse, you use the click
command. The following examples illustrate some commands:

Escape Sequence Result

,click,left. Clicks the left button

,click,right. Clicks the right button

,click. Clicks the default button
(usually the left one)

If there is no button mentioned in the command, SerialKeys
presses the default button. On multiple-button mouse
devices, the default button is the left button.

There are additional mouse commands, such as doubleclick.
These are described in the SerialKeys command summary, later
in this document.

Changing the Baud Rate

The baudrate command allows you to change the baud rate
(communication speed) of the serial port you are using to
communicate with SerialKeys. The first time the Access Utility
is used, SerialKeys will default to a speed of 300 baud.
After that you can change this value to 300, 600, 1200,
2400, 4800 or 9600.

The following escape sequence sets the baud rate at 600.

,baudrate,600.

Remember to change the baud rate of your communications aid
to correspond to the baud rate you specify in SerialKeys.

Handling Errors

There are two types of errors you might make when entering
escape sequences. One is misspelling a word in an escape
sequence command. If you make this type of error while
using SerialKeys, you will hear a short low beep. This
means that SerialKeys has either ignored a misspelled word,
or does not support a command and therefore is ignoring it.

The second type of error is more critical, and is indicated
by a short, high beep. It occurs when the syntax rules of
the GIDEI Standard have been violated, and SerialKeys is
unable to recover from the error. The computer will
continue to ignore all input until it receives the CLEAR
command, as shown:

,CLEAR.

You must spell CLEAR in all uppercase letters. (For
instructions on typing the shift key, see the section "Using
Modifier Keys" earlier in this document.) Once SerialKeys
receives the CLEAR command, it will be ready for normal
typing.


SerialKeys Command Summary

Here is a summary of the keyboard commands you can use with
SerialKeys:

Command Purpose
combine Types one to five keys simultaneously using a
single escape sequence.

hold Holds the specified key down along with the next
key typed.

lock Locks keys down until the rel command is used to
release them. (The RETURN or ENTER keyname should
never be locked down from a communication or
computer access aid). This command is typically
used with modifier keys (SHIFT, CTRL, and ALT).

rel Releases "locked" keys (sends a"key up" signal)
and clears any pending hold keys.

Here is a summary of the mouse commands you can use with
SerialKeys:

Command Purpose
moureset Causes the mouse to move its position to the upper
left corner of the screen and also reset its internal
"x" and "y" counter to (0,0). This command should always be
the first mouse command sent to SerialKeys from the alternative
input device.

click Sends a "button down" immediately followed by
a "button up" of the specified mouse button.

dblclick Sends two CLICK actions of the specified
mouse button.

moulock Locks the specified mouse button down (in other words,
a "button down" is transmitted with no "button up".)

mourel Releases "locked" mouse buttons (in other words, sends
a "button up").

move Moves the mouse a specified distance in the
specified directions.

goto Moves the mouse to a specified location.

Here is a summary of other commands you can use with
SerialKeys:

Command Purpose

baudrate Allows the user to change the baud rate of
the GIDEI.

CLEAR Causes the GIDEI to clear error conditions
caused by illegal syntax. This command must be
typed in uppercase characters.

Keyboard Escape Sequences

( p/r = pressed and released )

Keynames Escape Sequences Action(s)
alt ,hold,alt. alt key pressed down
backspace backspace. backspace key p/r
bksp bksp. backspace key p/r
capslk capslk. caps lock key toggled
capslock capslock. caps lock key toggled
comma comma. comma key p/r
control ,hold,control. control key pressed down
ctrl ,hold,ctrl. control key pressed down
del del. numeric pad del key p/r,"." or "del"
delete delete. delete key p/r
divide divide. divide key p/r,"/"
down down. down arrow key p/r
end end. end key p/r
enter enter. enter or return key p/r
esc esc. escape key p/r
escape escape. escape key p/r
f1 f1. function 1 key p/r
f2 f2. function 2 key p/r
f3 f3. function 3 key p/r
f4 f4. function 4 key p/r
f5 f5. function 5 key p/r
f6 f6. function 6 key p/r
f7 f7. function 7 key p/r
f8 f8. function 8 key p/r
f9 f9. function 9 key p/r
f10 f10. function 10 key p/r
f11 f11. function 11 key p/r
f12 f12. function 12 key p/r
home home. home key p/r
ins ins. numeric pad ins key p/r, "0" or "ins"
insert insert. insert key toggled
kp* kp*. numeric pad star key p/r, "*"
kp+ kp+. numeric pad plus key p/r, "+"
kp- kp-. numeric pad minus key p/r, "-"
kp/ kp/. numeric divide key p/r, "/"
kp0 kp0. numeric pad 0 key p/r, "0" or "ins"
kp1 kp1. numeric pad 1 key p/r, "1" or "end"
kp2 kp2. numeric pad 2 key p/r, "2" or "down arrow"
kp3 kp3. numeric pad 3 key p/r, "3" or "pgdn"
kp4 kp4. numeric pad 4 key p/r, "4" or "left arrow"
kp5 kp5. numeric pad 5 key p/r, "5"
kp6 kp6. numeric pad 6 key p/r, "6" or "right arrow"
kp7 kp7. numeric pad 7 key p/r, "7" or "home"
kp8 kp8. numeric pad 8 key p/r, "8" or "up arrow"
kp9 kp9. numeric pad 9 key p/r, "9" or "pgup"
kpdel kpdel. numeric pad key p/r, "." or "del"
kpdelete kpdelete. numeric pad . key p/r, "." or "delete"
kpdivide kpdivide. numeric pad divide key p/r, "/"
kpdown kpdown. numeric pad 2 key p/r, "2" or "down arrow"
kpdp kpdp. numeric pad . key p/r, "." or "del"
kpend kpend. numeric pad 1 key p/r, "1" or "end"
kpenter kpenter. numeric pad enter key p/r
kphome kphome. numeric pad 7 key p/r, "7" or "home"
kpins kpins. numeric pad 0 key p/r, "0" or "ins"
kpinsert kpinsert. numeric pad 0 key p/r, "0" or "ins"
kpleft kpleft. numeric pad 4 key p/r, "4" or "left arrow"
kpmidl kpmidl. numeric pad 5 key p/r, "5"
kpminus kpminus. numeric pad minus key p/r, "-"
kppagedown kppagedown. numeric pad 3 key p/r, "3" or "pgdn"
kppageup kppageup. numeric pad 9 key p/r, "9" or "pgup"
kppgdn kppgdn. numeric pad 3 key p/r, "3" or "pgdn"
kppgup kppgup. numeric pad 9 key p/r, "9" or "pgup"
kpplus kpplus. numeric pad plus key p/r, "+"
kpright kpright. numeric pad 6 key p/r, "6" or "right arrow"
kpslash kpslash. numeric pad divide key p/r, "/"
kpstar kpstar. numeric pad star key p/r, "*"
kptimes kptimes. numeric pad star key p/r, "*"
kpup kpup. numeric pad 8 key p/r, "8" or "up arrow"
lalt ,hold,lalt. left alternate key pressed down
lcontrol ,hold,lcontrol. left control key pressed down
lctrl ,hold,lctrl. left control key pressed down
left left. left arrow key p/r
leftalt ,hold,leftalt. left alternate key pressed down
leftcontrol ,hold,leftcontrol. left control key pressed down
leftctrl ,hold,leftctrl. left control key pressed down
leftshift ,hold,leftshift. left shift key pressed down
lshift ,hold,lshift. left shift key pressed down
multiply multiply. star key p/r, "*"
numlk numlk. num lock key toggled
numlock numlock. num lock key toggled
pagedown pagedown. page down key p/r
pageup pageup. page up key p/r
period period. period key p/r, "."
pgdn pgdn. page down key p/r
pgup pgup. page up key p/r
ralt ,hold,ralt. right alternate key pressed down
rcontrol ,hold,rcontrol. right control key pressed down
rctrl ,hold,rctrl. right control key pressed down
ret ret. return or enter key p/r
return return. return or enter key p/r
right right. right arrow key p/r
rightalt ,hold,rightalt. right alternate key pressed down
rightcontrol ,hold,rightcontrol. right control key pressed down
rightctrl ,hold,rightctrl. right control key pressed down
rightshift ,hold,rightshift. right shift key pressed down
rshift ,hold,rshift. right shift key pressed down
scroll scroll. scroll lock key toggled
scrolllock scrolllock. scroll lock key toggled
shift ,hold,shift. shift key pressed down
space space. space key p/r
tab tab. tab key p/r
tilde tilde. tilde key p/r, "`"
up up. up arrow key p/r





















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