Catching messages displayed on the command window

When I try to connect to another program, and the user has not logged in, it starts printing these messages:

I know how to get the ones highlighted in red, using a try-catch routine. But how can I search for the ones in black? The ones that say "failed to connect using..."?

Is there a routine I can use to raise a flag when this events are registered on the command window of Matlab?

Thanks for your help!

Answer 1

[Monika Phadnis]

These links may help to get the exception message displayed :

1. There is a function "getReport" which can be used to get the message displayed for an exception. Here's the link to the doc : https://www.mathworks.com/help/matlab/ref/mexception.getreport.html
2. You can also log the command window text to a file using "diary" command. Here's the link to the doc : https://www.mathworks.com/help/matlab/ref/diary.html

Hope this helps.

[Ajpaezm]

Thank you Monika. To use diary I must wait until the execution of the command I'm recording has finished right?

This can be an inconvinience, as what I would like to do is to get messages as they come up right away and compare them to a specific string, which will be my trigger to do other things inside the program.

[Monika Phadnis]

Try using the getReport function. You can put the code in try catch blocks and store the exception messages in variables.

A small example could be:

try 
    surf
catch exception
    errorMsg = getReport(exception)
end

Here, errorMsg will have the error text stored.