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From: Daniele on 16 Sep 2009 11:50
Hello,
I was wondering if it's possible to redirect warning messages from the console, where they usually appear, to a textbox in a GUI.

Thanks,
Dan
From: Matt Fig on 16 Sep 2009 12:42
This could be done by first turning off the warning of concern, then setting the last warning to empty with lastwarn and finally checking lastwarn when appropriate to see if a warning has been thrown and placing the string in the 'string' property of the textbox.

% This at the beginning of the code:
lastwarn('')
warning('off','MATLAB:singularMatrix')

% Sometime later a call to inv is made:
T = inv(ones(3)); % Normally a warning would be thrown at command prompt
str = lastwarn
lastwarn('') % Reset for possible 'next run' of code.

if ~isempty(str)
set(txthandle,'string',str)
end


You may want to do a cleanup after the code is run to restore the state of any warnings turned off during your code's execution.
From: Loren Shure on 17 Sep 2009 11:45
In article <h8r4hm$m5f$1(a)fred.mathworks.com>, spamanon(a)yahoo.com says...
> This could be done by first turning off the warning of concern, then setting the last warning to empty with lastwarn and finally checking lastwarn when appropriate to see if a warning has been thrown and placing the string in the 'string' property of the textbox.
>
> % This at the beginning of the code:
> lastwarn('')
> warning('off','MATLAB:singularMatrix')
>
> % Sometime later a call to inv is made:
> T = inv(ones(3)); % Normally a warning would be thrown at command prompt
> str = lastwarn
> lastwarn('') % Reset for possible 'next run' of code.
>
> if ~isempty(str)
> set(txthandle,'string',str)
> end
>
>
> You may want to do a cleanup after the code is run to restore the state of any warnings turned off during your code's execution.
>

also check warndlg. It may help you.


--
Loren
http://blogs.mathworks.com/loren
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