Java applet in a Delphi form

Question

Is there any way, without using TWebBrowser, to load a java applet in a Delphi form and interact with it?

Theres a page which contains a applet that I want to show inside my Delphi app (in a particular form) and after the user close it (or do any other operation) I want to interact with it (getting some details about what user did).

I know that TWebBrowser is capable of loading a java applet, but it will not let me interact and get what I need.

Similar thing can be done with a .Net assembly, but I have not seen anything like it using a java applet.

Edit:

As @PA pointed out:

"it will not let me interact" ... well, that's the actual reason for browsers running java applets inside a sandbox

Well .. that was not what a meant. I meant I am not able to get a value from a edit (for example) as I am able to do with other languages. I know that java runs inside a VM, but .Net runs as well and i am able to interact with .Net using some COM and stuff like that.

"it will not let me interact" ... well, that's the actual reason for browsers running java applets inside a sandbox. — PA.
– PA., Commented Mar 30, 2011 at 16:52
It seems you have to interface to the Java plugin to be able to do something like this. — Paŭlo Ebermann
– Paŭlo Ebermann, Commented Mar 30, 2011 at 17:24

FLCL · Accepted Answer · 2011-03-30 17:10:40Z

1

I think the only way to use Java Applets in Delphi programs wihtout TWebBrowser is to use ActiveX technology. May be this link from google can help you: http://www.oracle.com/technetwork/java/index-jsp-141438.html

answered Mar 30, 2011 at 17:10

FLCL

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2 Comments

Rafael Colucci Over a year ago

Ok, it seems nice. But can you elaborate your answer, maybe with a small example?

FLCL Over a year ago

download.oracle.com/javase/1.4.2/docs/guide/beans/axbridge/… - here you can see a complate instruction how to create activex-controls from applets - this process likely can be automated, after adding created activex-control you can communicate with it in a standart COM-style way

Roman Yankovsky · Accepted Answer · 2011-03-31 13:05:23Z

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May be you should take a look at Java Native Interface (JNI) technology. For example, you can find its Delphi implementation here.

answered Mar 31, 2011 at 13:05

Roman Yankovsky

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2 Comments

Rafael Colucci Over a year ago

The source code is very old and does not work in Delphi 2010.

Roman Yankovsky Over a year ago

It is sad to hear, the last time I was faced with JNI in Delphi 2006.

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