'How to catch IDL "message" with /informational flag
I have a astronomy procedure that returns an error message, but it uses the /inf flag. With this flag, none of the normal error flags are set. So how would one catch such an error? For example, I call the procedure, it prints out the informational error message, but how can I check if it outputted such a message? I see it in the console, but how can the program check for this?
Solution 1:[1]
I don't believe that is possible. According to the docs, when the INFORMATIONAL keyword is set, !error_state is not changed.
Set this keyword to issue informational text instead of an error. In this case, !ERROR_STATE is not set. The !QUIET system variable controls the printing of informational messages.
Solution 2:[2]
I think you can do the following (so long as nothing happened in between):
MESSAGE,/REISSUE_LAST
assuming you have IDL version greater than 6.0. If not, then you can just go into the routine, modify it by defining a keyword that returns the message if it was printed to the screen, otherwise it returns nothing.
Sources
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Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | mgalloy |
| Solution 2 | honeste_vivere |