how I can show the performance of a program into a window (edit text maybe) inside a gui development?

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Hello to everybody. I need some help on this issue. I'm developing a gui user interface, using images, buttons, mouse events and something like that. I have to export the program as an executable file and I want to put a kind of window (in the same gui) showing the performance of the program; i.e. a window where the user can see the same lines that I show in the command line ("In the main loop", "taking the next value", etc) and above all, the errors.
I'm trying to use a string variable that takes the messages that are generated to the user and displayed on an object "text editing"; the problem is I can not show chain by chain, it has to be the entire string at the end of the program. Any suggestion?

Accepted Answer

Walter Roberson
Walter Roberson on 18 Nov 2015
After you update the graphic object that is to hold the text, call drawnow() to make the update visible.

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