Waitbar till a file is created after a process

Dear all, I have a minimization function with many nested functions, inside a matlab gui. This function starts after pressing a button. So, you realise that the time for the minimization process to end is not defined. When the minimization is ended a figure is exported! Does anyone know how to create a waitbar to count till the figure creation??? All waitbars need a loop with a step. However, the time for the minimization is different each time! Thank you!

[Jan]

What should the waitbar display if the total time is unknown? Do you want a kind of sand clock?

Answer 1

[Walter Roberson]

About the best you can do is as I describe at https://www.mathworks.com/matlabcentral/answers/293613-waitbar-or-progress-bar-without-using-for-loop#answer_227587

[abaza]

Thank you Walter! It does what i want at least! However, how can I close the progressbar from my script and not pressing any button???? Because I try with close(fig) but nothing happens!!!

[Walter Roberson]

The progressbar is its own figure. Using the variables of the discussion linked to above, you should clear wb