show camera live stream while script is running which acquires sometimes single pictures from that camera

Hello, I am using a camera connected to my computer for taking pictures and evaluating them. For easier testing it would be nice if I could see a live stream from that camera. Unfortunately I cannot use the custom program for that because only one program can have access to the handle at a time (so in this case, Matlab prevents other programs from accessing the camera).

In C++ I would probably use a second thread for GUI processing and data acquisition from the camera or I would use a timer object for time multiplexing. How can I achieve something similar in Matlab? The Parallel Computing Toolbox seems not to be a good solution for this problem.

Kind regards