How do I send keystrokes from MATLAB to another application that was invoked using the bang(!) operator?

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MathWorks Support Team 2012-3-8

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https://ww2.mathworks.cn/matlabcentral/answers/102663-how-do-i-send-keystrokes-from-matlab-to-another-application-that-was-invoked-using-the-bang-opera

编辑： MathWorks Support Team 2020-11-4

I have invoked an application using the bang(!) operator in MATLAB on Windows, and would like to send keystrokes to this application from MATLAB. As a proof of concept, I would like to see this example implemented for a text editor.

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Answer 1

MathWorks Support Team 2020-11-4

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https://ww2.mathworks.cn/matlabcentral/answers/102663-how-do-i-send-keystrokes-from-matlab-to-another-application-that-was-invoked-using-the-bang-opera#answer_112008

编辑：MathWorks Support Team 2020-11-4

If you are running MATLAB on a Windows machine, you can use the WScript.Shell COM interface to send keystrokes to your application. For example, for Notepad, you would use the following code:

h = actxserver('WScript.Shell');
h.Run('notepad'); %Invokes notepad.exe
pause(3); %Waits for the application to load.
h.AppActivate('Notepad'); %Brings notepad to focus
h.SendKeys('hello world~'); %Sends keystrokes
h.SendKeys('^s'); % save file
pause(3);
h.SendKeys('test.txt~'); % save as 'test.txt' and return
h.SendKeys('%{F4}'); % close Notepad Alt+F4