How to creat a "The command is currently not available" script alert?

Question

I'm working to construct a Configurator-like panel whose buttons play actions located on Photoshop's regular Actions panel.
I'm using Eclipse and the EB3 plug-in and have made decent progress.  Here is a sample of code from the Photoshop.jsx file that is executed for one of the buttons.
$._ext_CURVESLAYER={
    run : function() {   
        doAction('Curves', 'Adjustment-Layers');
Very basic.  Just a doAction command to find the necessary action set and action and play it.
When using Configurator and the necessary action is NOT present on Photoshop's regular Actions panel, a script alert is generated that says  "The command is currently not available"
The panel I've created using EB3 doesn't provide this alert.  Nothing happens when I click a button on the EB3 panel whose action is missing from Photoshop's regular actions panel.  I'd like to be able to generate some type of message, like this script alert, if the action in the doAction command doesn't run as expected.
It looks like Configurator may have used this code to generate this script alert base on the fact that it contains the words : "The command is currently not available"
function ps_invoke_action(actionSet, actionName)
    var action = decode(actionName);
    var group = decode(actionSet);
writelog("invoke action " + action + " " + group);
    ErrStrs = {};
ErrStrs.USER_CANCELLED=localize("$$$/ScriptingSupport/Error/UserCancelled=User cancelled the operation");
    try
app.doAction(action, group);
    catch(e)
        if (e.toString().indexOf(ErrStrs.USER_CANCELLED)!=-1) {;}
        else
alert(localize("$$$/ScriptingSupport/Error/CommandNotAvailable=The command is currently not available"));
I don't know Java at all, but I'm pretty sure this code doesn't work with the EB3 panels.  I tried copying it into the ext.js file and it had no effect.  (Most of this has been trial and error for me, and I thought that would be worth a try.)
Can anyone help me with the code I need to use to generate the appropriate script alert if the doAction command doesn't run properly and where to put it in the various files required for an EB3-generated panel?
Thanks!

Answer 1

Hi,
As per my knoledge, there is no automatted way to find out from which (Command line, Application and Script) the application is running. here
i am suggesting some guidelines as specified below.
1. Define standard arguments codes for the decrypt program like.
1 - for Application.
2 - for Script.
3 - others.
if(args[0] == 1)
Decrypt PWD
else if(args[0] == 2)
DO Some thing
else if(args[0] == 3)
DO Some thing
else
-- Do not Decrypt --