optacon(1X)optacon(1X)NAME
optacon - An X program for the Optacon II
SYNOPSIS
optacon [options]
OPTIONS
Specifying the -dev option instructs the optacon utility to use the next argument as the file for the Optacon II device. By default, the
device is /dev/tty00. Specifying the -interval option instructs the optacon utility to use the next argument as the interval for the Opta-
con II device. The interval specifies how often (in milliseconds) the optacon utility will update the display of the Optacon II. By
default, the interval is 10 milliseconds.
DESCRIPTION
The Optacon II, a product of TeleSensory Corporation, is an optical-to-tactile conversion device meant to assist the blind in accessing
visual information. The optacon utility was made specifically to allow blind users to use an Optacon II to have more access to an X Window
System display. The optacon utility does so by mapping the pixels surrounding the on-screen pointer to the pins on the Optacon II. All
black pixels will cause the associated Optacon II pins to vibrate, and all other pixels will cause the associated Optacon II pins to remain
still.
X DEFAULTS INFORMATION
The format for a resource specification for the optacon utility is:
*resource:value
Specifies the resource. Specifies the value that is to be assigned to the resource.
For details about modifying resources, see X(1 X).
Because each X Window System toolkit-based application can consist of a combination of widgets (for example, push buttons and a scroll
bar), you can form the name string for a new resource specification by adding widget class and name identifiers to the string. For further
information about adding class and name identifiers, see X(1 X).
The following sample shows the optacon resources and their default values:
*dev: /dev/tty00 *interval: 10
TRADEMARKS
X Window System is a trademark of MIT.
The Optacon II is a product of TeleSensory Corporation,
P.O. Box 7455
Mountain View, CA 94039-7455
800-227-8418
tele@netcom.com
SEE ALSO X(1X)optacon(1X)
Check Out this Related Man Page
dxclock(1X)dxclock(1X)Name
dxclock - DECwindows interface to the clock
Syntax
dxclock [ options ]
Description
The dxclock command displays a window that continuously displays the system date and time. The clock can display time values in military
style (0 through 23 hours) or in 12-hour AM and PM format. The dxclock window has an alarm and the following components:
Analog region
Digital region
Date region
Options-bd color Specifies the color of the window's border (color displays only). The default is specified by means of the Session
Manager's Customize Window dialog box.
-bg color Specifies the color of the window's background (color displays only). The default is specified by means of the Session
Manager's Customize Window dialog box.
-d dispname Specifies the display screen on which dxclock displays its window. If the display option is not specified, dxclock
uses the display screen specified by your DISPLAY environment variable. The display option has the format host-
name:number. Using two colons (::) instead of one (:) indicates that DECnet is to be used for transport. The default
is :0. For more information, see
-display dispname This option is the same as the -d option.
-fg color Specifies the color of the text (color displays only). The default is specified by means of the Session Manager's Cus-
tomize Window dialog box.
-fn font Specifies the font for all of the clock menus. (The analog and digital fonts are automatically scaled to match the
clock size.) The default font is menu12. This option is overriden by the .Xdefaults file.
-geometry Specifies the width, length, and location of the dxclock window. If the geometry option is not specified, dxclock uses
default values. The geometry option has the format [widthxlength][{+-}x{+-}y]. For more information about the screen
coordinate system, see
The dxclock window has one pop-up menu. To display this pop-up menu, position the pointer anywhere within the dxclock window and click MB2
(the middle mouse button unless you have redefined it). This menu contains the following menu items:
Settings... Displays the Settings dialog box that lets you specify the clock regions to display, turn on or turn off the use
of 24-hour digital time, set the alarm, and enter a message that appears when the alarm goes off. You can also
display this dialog box by placing the pointer at any position within the dxclock window and double-clicking MB1.
Save Settings Saves the clock's settings and its size and position, to use the next time you run the clock.
Use System Settings Restores the use of system default values for the clock's settings, size, and position.
Help Displays information about using the dxclock command.
Exit Closes the dxclock window.
Restrictions
The system time cannot be changed while the clock is running. The dxclock window must be closed and reopened if the system time is
changed.
X Defaults
The dxclock application uses the values in the .Xdefaults file when you logged in and uses the appropriate resource specification to cus-
tomize the appearance dxclock window. A resource specification in the .Xdefaults file has the following format:
[name*]resource: value
name Specifies the application name or the name string that restricts the resource assignment to that application or to a component of
an application. If this argument is not specified, the resource assignment is globally available to all X applications.
resource Specifies the resource.
value Specifies the value that is to be assigned to the resource.
Because each toolkit-based application can consist of a combination of widgets (for example, push buttons and a scroll bar), you can form
the name string by adding widget class and name identifiers to the string. For further information about adding class and name identi-
fiers, see
For dxclock, the available class identifiers is:
Clock
For dxclock, the available name identifiers are:
Digital
FontFamily
In addition to the general resources listed in the resources available for dxclock are:
AlarmOn Specifies that the alarm be turned on. If set to zero, the alarm is not turned on. If set to 1, the alarm is turned
on. The default is zero.
AlarmHour Specifies the hour the alarm is to go off (0 to 23). The default is 12.
AlarmMessage Specifies the message to be displayed when the alarm goes off. The default is the string Alarm Message.
AlarmMinute Specifies the minute the alarm is to go off (00 to 59). The default is 00.
AlarmPM Specifies that the alarm is set for PM. If set to zero, the alarm is set for AM. If set to 1, the alarm is set for
PM. The default is zero.
AnalogOn Specifies whether the analog portion of the dxclock window is displayed. If set to zero, the analog portion is not
displayed. If set to 1, the analog portion is displayed. The default is 1.
DateOn Specifies whether the date portion of the dxclock window is displayed. If set to zero, the date portion is not dis-
played. If set to 1, the date portion is displayed. The default is 1.
DigitalOn Specifies whether the digital portion of the dxclock window is displayed. If set to zero, the digital portion is not
displayed. If set to 1, the digital portion is displayed. The default is 1.
militaryOn Specifies whether the digital portion of the dxclock window displays the date in 12-hour format or 24-hour format. If
set to zero, 12-hour format is used. If set to 1, 24-hour format is used. The default is zero.
The fonts used by dxclock are specified by an asterisk (*). This is done so that a font family is chosen instead of a particular font.
The asterisk (*) is a wildcard character that matches all font sizes.
Files
~/.Xdefaults
~/.DXclock
/usr/lib/X11/app-defaults/DXclock
~./DXclock
See AlsoX(1X), dxwm(1X),
DECwindows Desktop Applications Guide
dxclock(1X)