Using the Cancel button in uiprogressdlg to immediately stop execution

I'm trying to get the cancel button in uiprogressdlg to stop execution immediately. I have a loop within which I check for CancelRequested == 1, but I'm only iterating that loop a few times. Each iteration has several steps with some pretty slow function calls (lots of data pulling and processing). Is there a way to get the cancel button to interrupt the execution of whatever is going on (kind of like a programmatic ctrl-c)? I check for CancelRequested == 1 after each step, but even then, I have to wait for the completion of a step which may take several minutes.

Answer 1

[Walter Roberson]

https://www.mathworks.com/matlabcentral/answers/496530-using-timer-how-can-i-cleanly-exit-a-function-execution-when-the-timer-fires-in-matlab#answer_406307