See my answer here as well https://www.mathworks.com/matlabcentral/answers/583955-get-the-status-using-system-command-when-program-has-been-closed#answer_485480
Here's an example with simple app.
Process = System.Diagnostics.Process;
Process.Start('notepad.exe');
% You can check if process is still running
while(Process.HasExited == false)
% do something
end
If you are running an executable file with input arguments, see the answer here: https://www.mathworks.com/matlabcentral/answers/264364-executable-in-matlab-help#answer_206712
Alternative below
I am onto this question as well, you can run
system('file.exe %')
With ampersand, MATLAB won't wait for the exit of program.
while (% stop the key with press of a button or however you want to)
% your code
end
