How to use windows environment variable "%appdata%" in TEXT_IO built-in

Hello Sir/Madam,
I'm currently using TEXT_IO built-in package to write data file user's "C" drive in Oracle Forms 6i on Windows XP OS. We are in the process of upgrading the OS to Windows7. This new version does not allow to write to "C" or "D" drive. I was wondering how I can use windows environment variable "%appdata%" in this built-in to write the data file to user's AppData folder?
I would appreciate your help.
Regards,
Vani Sonti

You are obviously not familiar with the architecture of webforms. See here http://www.oracle.com/technetwork/developer-tools/forms/275632-133265.pdf
I guess you are running your forms locally, so the forms server and the client run on the very same machine. This won't be the case once you run in production, as you will have an application server and clients connecting to the server.
text_io, tool_env and all the forms built ins will be executed on the machine the forms runtime runs on, and in a 3 tier architecture this is the application server, not the client as the real client will run just a java applet which actually just does what the forms runtime on the server tells it to do (or passes client side events like mouse clicks to the forms runtime on the server).
A very simple explanation for the architecture would be that the whole GUI part has been ripped off the forms runtime and put into a java applet; the logic part (the old-fashioned forms runtime) where the whole Forms PL/SQL code is executed communicates with the GUI part (which is implemented as a java applet) via HTTP, so there is no need to have both running on the very same machine.
So if you are writing a file with text_io on c:\dummy.txt this file will be generated on the application server machine as it is executed where the forms runtime runs. If you read environment variables with tool_env.getvar you will get the environment variable from the application server machine.
If you need those variables from your application server then those built-in packages are what you need, but if you need the real client variables there is no way around java in webforms 6i. But the beans should be simple enough to have them written within no time ;)
cheers

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Any reply is help to me!! :-)

Thx for your reply...
I get it!!!
Read environment variables from an application
Start the JVM with the "-D" switch to pass properties to the application and read them with the System.getProperty() method. SET myvar=Hello world
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(DOS bat file acting as a CGI) java -DREQUEST_METHOD="%REQUEST_METHOD%"
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javaCGI
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import java.util.*;
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while( (line = br.readLine()) != null ) {
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public static void main(String args[]) {
try {
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Thanks to W.Rijnders for the W2K fix.
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solved it ...
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Tim

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