How Can I Write A Program Pressing a Key?

Hi i'm going to to use matlab for pressing keys when something changed in the screen (left arrow and right arrow keys specially), so what can i do for this? thanks

Answer 1

[Geoff Hayes]

Mahan - if you are using a MATLAB figure (which is the screen with something changing on it), you can assign a function callback to the WindowKeyPressFcn property of the figure. This callback would be called so long as the figure has focus. Try using the following code in a file saved as KeyPressFcnTest.m

 function KeyPressFcnTest
      close all;
      h = figure;
      set(h,'WindowKeyPressFcn',@KeyPressFcn);
      function KeyPressFcn(~,event)
          fprintf('key event is: %s\n', event.Key);
      end
 end

The event.Key will give you the name of the keyboard button pressed (rightarrow, leftarrow, etc.).

[Mahan Vaezzadeh]

assume that i have a page opened on google chrome and i want a left arrow be pressed every 5 sec,how can i do that?!

[Geoff Hayes]

Does the left arrow interact with the open page on the Google Chrome browser? Please clarify what you are attempting to do.

[Mahan Vaezzadeh]

yes,the left arrow inteact with the open page on the google chrome, sorry,my english is not very good