GTClock v1.4 User's Manual
Table of Contents
Thank you for download GTClock v1.4, GigaTech's Interactive Digital Cuckoo
clock. This feature-loaded Java digital clock is highly configurable by the
web publisher and the end user. Such features like separate display of the
seconds, flashing colon for each second, hourly cuckoo chime, and display
time in either 12 or 24 hour format can be enjoyed by all.
Setting Up GTClock v1.4
GTClock is easy to install and use. Just follow these simple steps.
For example. Let's say that your HTML files are at
- Simply copy or ftp all the included files to a subdirectory of your choice. Do take
a note on where this subdirectory is relative to the directory that holds your HTML files.
- In your web page where you want to have GTClock appear, insert the following
<APPLET CODEBASE="CodeBase" CODE="GTClockApplet.class" WIDTH=162 HEIGHT=40>
[<PARAM NAME="digits" VALUE="digitImageFile">]
[<PARAM NAME="buttons" VALUE="buttonImageFile">]
[<PARAM NAME="bgcolor" VALUE="R,G,B">]
[<PARAM NAME="chime" VALUE="on/off">]
[<PARAM NAME="format" VALUE="12/24">]
[<PARAM NAME="credit" VALUE="on/off">]
- The square brackets
 indicate that parameter is OPTIONAL. Do not type the
square brackets into your HTML file.
CodeBase is the relative directory of the GTClock files relative to your web page file.
For example: If you have your HTML files at
http://www.isp.com/mydir/html/ and you've copied the GTClock files to
CodeBase should be "../GTClock/".
digitImageFile is the image file for the digits. This parameter is OPTIONAL.
It defaults to GTClockDigits.jpg which is the red-glow LED style that you see above. This allows you to design and use your own
digit image file if you should choose to do so. The requirements of the custom image file are:
- All the digits must be contained in one single image file in the format of gif or jpg.
- All the digits are lined up from 0 to 9 and then A, P, M, and the colon (0123456789APM:).
- The numeral digits 0 thru 9 and letters A, P, M are each 22 pixels wide and 32 pixels high (22x32).
- The trailing colon(:) is 10 pixels wide and 32 pixels high (10x32).
- With the above dimensions, the file should be 196 pixel wide and 32 pixels high (196x32).
buttonImageFile is the image file for the chime and display format switch buttons. This
parameter is also OPTIONAL. It defaults to GTClockButtons.gif which complements
the default digits image file. This optional parameter allows you to design and use your own image file for
these two buttons. The requirements for this custom image file are:
- Two images are required for each button - a de-selected image and a selected image pair, in that order.
- These four images are lined up so each row contains the de-selected/selected pair of images. With
the chime button pair on top and the display format button pair on the bottom. You can open the default
file with your graphic application to see the layout if you are unclear of the descriptions here.
- Each button is 20 pixels wide and 16 pixels high (20x16) making the file 40 pixels wide and 32 pixels
high (40x32). Again, it can be in either gif or jpg file format.
R,G,B are the RGB color values for the background. It defaults to black "0,0,0". This option is
used only if you are providing your own digit image file. Use this option to match the background color to your digit image file's background. Of course,
if you are using a transparant digit image file, then you can use any background color you like.
on/off are either on or off for the chime parameter. If the value is "on" for this parameter, then
the hourly cuckoo chime is enabled. On the top of each hour, it'll coo-coo for the appropriate times indicating
the hour. The chime will be off if this parameter is set to "off". This parameter is also OPTIONAL.
The default is "on". The client/user can also set this setting using the chime button 'o)))' on the clock.
12/24 are either 12 or 24 hour format for the display option. If the value is set to "12" then the
clock will display using the 12 hour format (03:35PM). If the value is set to "24", then the clock will display
using the 24 hour format (15:35). This parameter is also OPTIONAL. The default is "12". The client/user
can also set this setting by using the '12/24' switch button on the clock.
on/off are either on or off for the credit display option. By default, the credit will be displayed
only when the mouse moves into the clock area. It can be disabled by setting this optional parameter to "off".
Please NOTE: the developer of this applet, George Tang at GigaTech Consulting, wishes that you leave this option on giving him the credit
automatically. However, you may choose to disable this credit if you have the appropriate credit listed somewhere else.
http://www.isp.com/mydir/html/ and you have copied the GTClock files to
http://www.isp.com/mydir/Java/GTClock/, and you want it to display the time in 24 hour format and no hourly chime automatically each
time you open the HTML file, this is what you will have in your HTML file:
<APPLET CODEBASE="../Java/GTClock/" CODE="GTClockApplet.class" WIDTH=162 HEIGHT=40>
That's all there is to it. To use all default values, all you need is:
<PARAM NAME="chime" VALUE="off">
<PARAM NAME="format" VALUE="24">
<APPLET CODEBASE="../Java/GTClock/" CODE="GTClockApplet.class" WIDTH=162 HEIGHT=40>
Using the GTClock v1.4
Now that you have GTClock setup on your web page and have it running, anyone viewing your web page will see and can interact
with the clock. There are 3 things that the user can do to interact with the clock.
And they are:
- Moving the mouse into the digital display area will automatically activate the min:sec display.
- Switch the hourly cuckoo chime on and off by clicking on the chime setting switch 'o)))'.
- Switch the display format between 12 and 24 hour format by clicking on the display format switch '12/24'.
We constantly try to improve and keep our product as best as it can be. However, once in a while, we still face the fact
that our product contains some bugs. We'll try our best to get rid of the bug as soon as we discover them. Below are
known issues that we currently know about on GTClock v1.4 and are working on a solution for the next version. If you
find any new bug, please send an E-mail and let us know.
- Having more than one GTClock v1.4 open and running will cause confusion to Java enabled Netscape Navigator 2.0, 2.02, 3.0 beta.
This, however, is a bug in Netscape's Java implementation, especially with Borland's JIT compiler for the Navigator 3.0 Beta 5.
Netscape has corrected this in their release version of Navigator 3.0.
Solution:Make sure that only one GTClock is running per web page.
- Under any Java enabled Netscape Navigator 3.0 beta or earlier, the hourly chime will keep the sound channel until Navigator is exited.
Meaning that when the chime is done cuckoo'ing, Navigator will still hold the sound channel and not letting any other
application play any wave sound. This is a bug in Navigator's implementation of Java. Any Java applet that plays sound
will do the same thing. Netscape has corrected this in their recent release version of Navigator 3.0.
Solution:Either turn off the chime, or use other Java enabled browser such as the Microsoft Internet Explorer 3.0. The
latest release of Netscape Navigator 3.0 has corrected the problem.
There, you now know everything you need to know about the GTClock v1.4. We sure hope that it will bring you and your
web page clients hours of cuckoo excitement and joy. If you should have any questions, please direct them to
firstname.lastname@example.org. For updates and new applets, do stop by our web page at
http://www.wolfenet.com/~gtang every now and then. We thank you very much
for placing GTClock on your web page.
For those of you who are designing your own digits and button images and would like to share them with the rest of
the GTClock users, please attach the image files to an email and send them to me at
email@example.com. As soon as I start to receive them, I'll start posting
them on my web site. So do visit my web site often to see if there's new images that you would like to use at
http://www.wolfenet.com/~gtang every now and then.
- Added a feature to allow the setting of backgroud color. So when using a custom image
file, the image background will blend in with the display background.
- Fixed a bug so 12 noon to 12:59 pm is displayed correctly with the PM rather than AM.
- Changed the design of the buttons to be more readable.
- Added the ability to use custom designed images for the display.
- Modified the display algorithm so the flashing colon synchronizes with the second.
- Add the GigaTech copyright display.
- GTClock 1.0 is born.
- Flashing colon to indicate seconds.
- Moving mouse into display displays the seconds.
- Buttons to set setting for the clock.
- Hourly cuckoo chime.
GTClock is copyrighted © 1996 GigaTech Consulting. You (the Licensee) are hereby Licensed to use GTClock freely
on your computer system and web pages. The Licensee may distribute GTClock freely on Online Services provided the entire
content of GTClock14.zip is distributed. The Licensee agrees NOT to sell copies of GTClock (i.e. disk vendors) without
express permission from GigaTech Consulting (terms normally include a copy of the distribution disk/cd). The Licensee may
NOT decompile, reverse engineer, or modify GTClock or its resources. The Licensee may NOT modify the GTClock14.zip (sometimes
gtclock13.zip, gtclock12.zip or gtclock1.zip) file or its contents.
USE OF THIS PROGRAM IS AT THE LICENSEE'S OWN RISK. THE LICENSEE AGREE BY USING THIS PROGRAM TO HOLD GIGATECH CONSULTING
HARMLESS AGAINST DAMAGES ARISING OUT OF THE USE OF THIS PROGRAM. EVEN IF GIGATECH CONSULTING WAS NOTIFIED IN ADVANCE THAT
SUCH DAMAGES MIGHT OCCUR.
Some users have asked how to make Donations to the developer of this utility. If you would like to make a donation, you
can send it to:
1011 Boren Avenue, #369
Seattle, WA 98104-1300
PLEASE MAKE ALL CHECKS PAYABLE TO: George Tang
GTClock v1.4 and this User's Manual are copyrighted © 1996 by GigaTech Consulting.