How can I get MATLAB to open objects outside of MATLAB using the mouse?

Question

Bryan on 9 Dec 2011

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https://www.mathworks.com/matlabcentral/answers/23526-how-can-i-get-matlab-to-open-objects-outside-of-matlab-using-the-mouse

I can currently trying to see if I can automate tasks using a MATLAB program to move the cursor and select objects.

I can across the idea when I learned that using the set function, I can move the mouse cursor. Example to place the cursor in the middle of the screen.

ScreenSize=get(0,'ScreenSize');
set(0,'PointerLocation',[ScreenSize(3)/2,ScreenSize(4)/2]);

What I would like to know is if there is a command to then have MATLAB do either a single press or a double press so I could then be able to select and/or open files located on my desktop.

Thanks in advance.

EDIT:

My ultimate goal is to create a program that can control the computer based on hand movements and gestures. I have my project broken down into three steps right now.

Step 1: Recognize my hand in a steaming video. DONE

Step 2: Move the cursor on the screen in relation to the movement off my finger. DONE

Step 3: Be able to open a file based on a hand gesture. This is where my problem is. In an if statement, I can get MATLAB to recognize the hand gesture that I want to use to open a file (right now I have it to where MATLAB prints a text to the command window), but I do not know how to write a command to essentially perform a double press of the mouse button without physically pressing the mouse button.