Kwan,

Yes there is an option that will help you. (and I do not think that it is documented)

Just add the "-exec your_script" option to the command line option window.
As you can see from the attached screenshot the your_script will be run instead of the normal psfmtdrv program.
(in the screenshot I used test.pl instead of your_script)

In your "your_script" you will be able to test whatever you want to test.
When the testing is done, your "your_script" will have to excecute the psfmtdrv command, otherwise nothing will get printed.
This means that in your "your_script" you will have to read all of the switches and options that are sitting on the command line and then pass them through to the psfmtdrv call.

"your_script" can be anything that is executable and can be placed anywhere. Just be sure to pass the full path to it in your -exec option.

Good luck

Bart

Well the answer to your question depends on the language you use to write your script/program.

As you could see in the screenshot in my original reply, all options and switches one selects through the print interface will appear on the command line that will start your script/program. (for a complete list of all possible options/switches do a "xyhelp psfmtdrv")

If you write your script/program in perl, the command line options live on @ARGV. There is a pretty good article written by a reliable and modern source (2 problematic things with most of the things you find about perl on the internet) here:
Processing command line options

Bart