Index

We hope these faq's will answer most of your questions, if not, contact us.

Purchase

1. How do I purchase.
2. How do I get my software?
3. Can I get my money back if I don't like the product?
4. I have ordered a product but I have not received anything...
5. How long does it take?
6. May I use the applet/servlet in more than 1 site?
7. Can I buy the source code?
8. May I modify the source code?
9. May I redistribute the source code?
10. May I redistribute the compiled classes?
11. Is it possible to agree a different license type?
12. Does the price include updates and support?

Technical Support

• General
  1. I have received the registered version but I still see the demo version.
  2. Which platforms do the components run on?.
  3. Do you get X11 errors when running on UNIX/Linux?
  4. Do our products support Chinese, Japanese, Korean ..... characters?
• RChart faqs
• RTree
  1. I can only add 4 nodes to the root of the tree.
  2. Menu not working on Netscape (applet not found).
  3. Can I use RTree Visual Designer to create RMenus (horizontal and vertical)?

• RMail
  1. Does RMail need any additional libraries

• RBarcode faqs
• RReport faqs

You will receive your software per e-mail. For this reason it is important that you do not make a mistake when entering your email address in the purchase form.

No, you cannot cancel your order once we have sent the software. Please understand that there is no way for us to know if you are going to be honest. You could cancel your order and keep on using the registered software.

On the other hand we provide evaluation versions of all our products so that you can test it before you buy.

contact us, so that we can check if your product has been sent. A common reason for this problem is that some e-mails servers reject big e-mails. Check if your will server is able to receive e-mails larger than 500 Kb.

It normally takes between 1 and 12 hours to deviler a product. If you order on weekend it may take up to 48 hours. There are sometimes exceptions to this rules, for example, orders are sometimes processed manually for security reasons.

No, one license entitles you to use the applet in just one server (web site). You may however use the servlet as long as it is part and bundled to your web based application. See the license agreement.

Yes. See the license agreement.

May I modify the source code?

Yes, you may modify the original source code, but you may not remove the license agreement from the source code. You may not copy and paste the source code into an external file either. See the license agreement.

No, you may redistribute the source code, even if you have modified it. See the license agreement. Contact us if you need to redistribute the source code.

Yes, you may redistribute the compiled classes as long as they are bundled and part of your application. You may not redistribute them as standalone classes/package or you may not create a product aimed for developers and that can compete with ours. See the license agreement. Read also this, if you a using an applet or servlet.

Yes, tell us what you need.

• Yes, during the first 6 months you can request new versions of the product free of charge.
• Yes, the price includes support per e-mail during 6 months.

Make sure you delete the cache of the browser. It sometimes happens that the browser is using the demo version of the applet even when you have installed the registered version.

All our components are 100% java.awt so they should run in windows , UNIX, Linux ... without problems. If you detect any problems like: checksum, corruption or security problems, a new compilation might be necesary.

If you need to use a character set other than ascii (chinese, arabic, japanese... ) you just need to have the proper fonts installed in your java environment. Then you need to use the appropiate font in the product. The default font for our products is normally Arial. Consult the product documentation to see how to change the font for the text.

Here you have some information if you experience X11 errors while using the servlet.

A commoun solution is to install the PJA toolkit. See PJA page home page.

These information has been retrieved from java.sun.com:

• On Solaris, Java Advanced Imaging complains about lack of access to an X server. This is a manifestation of a JDK bug in which creation of the AWT Toolkit class results in an attempt to open the X display. To work around this problem, either make an X display available to the Java runtime using the DISPLAY environment variable (no windows will appear on the display), or consider running a dummy X server that will satisfy the AWT, such as the Xvfb utility included with the X11R6.4 distribution.

• The Toolkit is checking the DISPLAY environment option, and generating an exception at that point. I've had similar errors when attempting to run GUI apps under Solaris. Its likely to be an internal implementation requirement of the 2D API or perhaps the X library itself. If you just set the DISPLAY environment variable then your error will go away. It shouldn't matter what machine name you give it (though use the local) as you aren't displaying any graphics.

• working on solaris 8, I got round this error message by logging in as root, setting: DISPLAY=localhost:0.0 export DISPLAY

• Sun's AWT code requires a functioning X server to operate. Therefore you have to have your DISPLAY set to a functioning X server if you use any awt methods. There is no known work around.

• You have to run an X server on the same machine (or a machine on the local network or the performance of your servlet will suffer) of your server. You have to set your DISPLAY environment variable to your localhost (127.0.0.1:0.0) if you installed your x server on the same machine and it's gonna work. It's all because of AWT.

This is a restriction in the evaluation version (free for personal use ) of RTree.

try using the parameter CODEBASE = "./" .

the Designer can only be used to create Trees not horizontal or vertical Menus. However you can also image a Menu as a Tree. You can create a Tree and then modify the resulting HTML code to be used as a Menu For example:

1. load Example1 in the Designer.
2. Generate the HTML code (File->generate)
3. Edit the HTML page with notepad and put this:

   <APPLET CODEBASE = "."
   CODE = "com.java4less.rmenu.RMenuApplet.class"
   NAME = "TestApplet"
   ARCHIVE = "RMenud.zip" WIDTH = 800 HEIGHT = 340 >
   <PARAM NAME = "TREE_MENU_TYPE" VALUE = "HORIZONTAL">
   <PARAM NAME = "NODE_SUBMENUCOLOR" VALUE = "LIGHTGRAY">
   <PARAM NAME = "NODE_SUBMENU_BORDER" VALUE = "RAISED">
   <PARAM NAME = "TREE_ITEM_WIDTH" VALUE = "100">
   <PARAM NAME = "TREE_SUBMENU_ICON" VALUE = "submenu.gif">

instead of the tree's code:

<APPLET CODEBASE = "."
CODE = "com.java4less.rtree.RTreeApplet.class"
NAME = "TestApplet"
ARCHIVE = "RTreed.zip" WIDTH = 250 HEIGHT = 300>

No, RMail does not even use JavaMail. You just need the Java Core classes.