How to tell the user to install java plug-in?

[circuit_breaker]

Hi,

When my applet is lauched from a non-java-enabled browser, nothing
happends, just an empty gray square. I'd like to ouput a message
telling the user he must install/enable the JVM. How?

Thank you.

 

[Thomas Weidenfeller]

When my applet is lauched from a non-java-enabled browser, nothing
happends, just an empty gray square. I'd like to ouput a message
telling the user he must install/enable the JVM. How?

http://java.sun.com/j2se/1.4.2/docs/guide/deployment/#autodownload

/Thomas

 

[Chris]

In your applet you should add the plug-in path e.g.

<OBJECT classid="clsid:"
WIDTH = 800 HEIGHT = 600
codebase="http://some_machine/javaplugin/j2re-1_3_1_01-win.exe#Version=1,3,1,01">
<PARAM NAME = CODE VALUE = ...>
<PARAM NAME = CODEBASE VALUE = "." >
<PARAM NAME = HEIGHT VALUE = 600 >
<PARAM NAME = WIDTH VALUE = 800 >
<PARAM NAME = ARCHIVE VALUE = "applet.jar" >
<PARAM NAME="dataSource" VALUE="some_machine">
<PARAM NAME="type" VALUE="application/x-java-applet;version=1.3">
<PARAM NAME="scriptable" VALUE="false">
</OBJECT>

The "codebase" should contains the name or IP of your machine where
you have the plugin. The applet will start to download and install it
if missing.

Hope this help,
Chris

 

[Ike]

Best I've seen is JavaVersionApplet - Andrew Thompson here has it. BUT...you
MUST compile it under jdk 1.1.8 or less for it to work correctly in msie.
Then, as the "redirect," parameter, have it point to the autoinstall page at
SUN, i.e:

<param NAME="redirect" VALUE="http://www.java.com/en/download/">This all

 

[Andrew Thompson]

Best I've seen is JavaVersionApplet - Andrew Thompson here has it.

Thanks Ike!

.. BUT...you
MUST compile it under jdk 1.1.8 or less for it to work correctly in msie.

If you mean the JavaVersonApplet itself, yes..
Or you can simply install the precompiled jar
itself. (have I been smart and a) added a direct
download or the jar, ..or b) do I need to get my
s**t together? Oops! b) )

For the moment, you can get the source here..
<http://www.physci.org/codes/jre.jsp>
(link at bottom of page..)

And you can compile it with a -target 1.1 on
your own system to produce a 1.1 compatible
version.

It is important to note though, your own applet
can be anything from 1.2 to 1.5, *your* applet
does not need to be coded or compiled for 1.1

 

[Johan Poppe]

"circuit_breaker" <[email protected]>
wrote in message news:[email protected]...

Best I've seen is JavaVersionApplet - Andrew Thompson here has it.

That works in a browser with an old JVM, but it will not work in a
browser with no JVM.

 

[Andrew Thompson]

That works in a browser with an old JVM, but it will not work in a
browser with no JVM.

'alt' and 'noapplet'..

 

[circuit_breaker]

All I want, is to have a message displayed on the user's screen like:
"Please, install the Java Plug-in to use this applet", nothing more.

Thanks.

 

[Andrew Thompson]

All I want, is to have a message displayed on the user's screen like:
"Please, install the Java Plug-in to use this applet", nothing more.

<applet code="AnApplet.class"
codebase="."
alt="<p>Please, enable the Java Plug-in to use this applet"
width=100 height=100>
<p>Please, install the Java Plug-in to use this applet.
</applet>

...as detailed here.
<http://java.sun.com/docs/books/tutorial/applet/appletsonly/appletTag.html>