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Re: Q: debuggging widget applications in IDL 5 [message #10899]

Fri, 06 February 1998 00:00

David Foster
Messages: 341
Registered: January 1996

Senior Member

> Mark Rivers wrote:
>> Jack Saba (jackxxx@magusxxx.stx.com) writes:
>>>
>>> Is there any way to get IDL to behave the way it did in IDL 4, or at
>>> least to tell you where the error occurred? I tried using the new
>>> CATCH=0 option on the XMANAGER statement, but either I haven't figured
>>> out how to use it, or this isn't the solution.
>>
>
> In IDL 5 there is a /no_block keyword to XMANAGER. If you set this keyword it
> does 2 things:
> 1) Gives you access to the IDL command prompt even when your widget
> application is running
> 2) Produces the old IDL 4 behaviour when your widget application gets an
> error, i.e. gives you a traceback to where the error occurred
>
> Item 1) above is documented of course, but I don't recall seeing item 2)
> documented. In any event I like both of these behaviours, so I always use
> /no_block.

I wasn't aware that the /no_block keyword caused this behavior (#2).
Perhaps this only works under Solaris 2.X, but I put

XMANAGER, CATCH=0

in our idl_startup file, and we get "IDL 4-like" behavior when errors
occur, whether or not the keyword /NO_BLOCK was used (some of our
applications require its absence).

Dave
--

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~
David S. Foster Univ. of California, San Diego
Programmer/Analyst Brain Image Analysis Laboratory
foster@bial1.ucsd.edu Department of Psychiatry
(619) 622-5892 8950 Via La Jolla Drive, Suite 2240
La Jolla, CA 92037
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~

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[Message index]

		Re: Q: debuggging widget applications in IDL 5 By: David Foster on Fri, 06 February 1998 00:00
		Re: Q: debuggging widget applications in IDL 5 By: davidf on Fri, 30 January 1998 00:00
		Re: Q: debuggging widget applications in IDL 5 By: rivers on Fri, 30 January 1998 00:00
		Re: Q: debuggging widget applications in IDL 5 By: Liam Gumley on Fri, 30 January 1998 00:00
		Re: Q: debuggging widget applications in IDL 5 By: mallors on Fri, 30 January 1998 00:00
		Re: Q: debuggging widget applications in IDL 5 By: Alex Schuster on Fri, 30 January 1998 00:00
		Re: Q: debuggging widget applications in IDL 5 By: davidf on Fri, 30 January 1998 00:00

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