How to Simulate keyboard key inputs?

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Kevin on 11 Apr 2011
Edited: dpb on 5 Jul 2020
I am interested in simulating a keyboard input using .m code.
How would I go about simulating typing and other keyboard inputs?
Similar to this, but with the keyboard instead of the mouse.

Accepted Answer

Walter Roberson
Walter Roberson on 11 Apr 2011
Java Robot class.

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More Answers (5)

Kevin on 11 Apr 2011
Haha, nice.
Why does SimKey.keyPress(KeyEvent.VK_w); now work for undercase w? Is there a full list of keyboard inputs I can reference?
What is "VK" referencing to?
Jan on 11 Apr 2011
KeyEvent.VK_W is the [W] key - there is no upper or lower case *key*! You need the [Shift] key to create uppercase characters:
Remember: It is only a robot and it s(t)imulates the keyboard...

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ali on 30 Nov 2011
Hi Paulo,
regarding"execute my code and Matt code on the command line of matlab (not in a script) :)"
I am going to kill an running script through simulating Ctrl+C which is written as a function like this:
import java.awt.Robot; import java.awt.event.*; SimKey=Robot; SimKey.keyPress(java.awt.event.KeyEvent.VK_CONTROL); SimKey.keyPress(java.awt.event.KeyEvent.VK_C); SimKey.keyRelease(java.awt.event.KeyEvent.VK_CONTROL);
how can I call it? when I call this function it does not work? Thanks, Ali
  1 Comment
Walter Roberson
Walter Roberson on 30 Nov 2011
Don't forget to release the VK_C

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Amirhosein Ghenaati
Amirhosein Ghenaati on 5 Dec 2014
hello i want to execute kmplayer then first launch kmplayer then use java robot to push space it will open media folder. my program stop when kmp starts and and when i terminates kmp space chracter will be printed in editor. here is my simple program and i dont know whats problem please help me in this situation
import java.awt.Robot
import java.awt.event.*
keys = Robot;
[status currdir] = system('cd C:\Users\IranZamin\Documents\MATLAB\temporary');
[status result] = system('KMPlayer.lnk');
keys.keyPress(java.awt.event.KeyEvent.VK_SPACE )
keys.keyRelease(java.awt.event.KeyEvent.VK_SPACE )

Amirhosein Ghenaati
Amirhosein Ghenaati on 19 Dec 2014
i tried to make exe version of key pressing with robot class but my exe file doesn't work and i dont know what i couldnt find relative .jar file for java robot class whats its name ?

Garrett Cassidy
Garrett Cassidy on 14 Aug 2019
Does anyone know how to emulate a ; or a \ ? I can emulate keystrokes, but the ‘VK_OEM_1´input to keyPress is undefined.


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