Accessing Data from One Widget to Another in GUIDE

(Originally posted on Doug's MATLAB Video Tutorials blog.)

Last time, I showed how to add the newly documented UITABLE to a GUI. There were a few questions about how to access the data in the UITABLE from the callback of another widget. The answer to this question is applicable to all widgets, not just UITABLES. Basically, you are using the handles structure to access the handle of another control, then using the GET command to query it for its data.