How to simulate a key-press in ExtendScript?

Hi Alan, 

Thanks for your reply above, I too am trying to simulate a key being pressed in Photoshop. Specifically I want to run a command as if the user had pressed the escape key when my panel opens in order to dismiss the start screen.

I tried looking at the Javascript Tools Guidefor .notify() as you mentioned but still don't quite understand how to use it in a .jsx file being run. Could you possible give an example please?

Extremely grateful for any help you could provide,

Thanks, Ben

For what system are you looking for actually, that kind of a big deal. Im also looking for this and then especially Windows, i already know the OSX version of this. Below is the OSX version which presses the right arrow key

app.system( 'osascript -e \'tell application "System Events" to key code "124"\'' ); 

The complete function is like this

function keyPress(os){
    // #target photoshop
    // app.bringToFront();
    // 123 left
    // 124 right
    // 126 up
    // 125 down
    // 116 PgUp
    // 121 PgDn
    // 115 Home
    // 119 End
    
    // alert(os)
    // $.sleep (100);
    // Check OS
    if (os == "Windows") {
      // WIP get windows equilant code
    } else if (os == "Mac") {
        // alert(os)
        app.system( 'osascript -e \'tell application "System Events" to key code "124"\'' ); 
        // app.system( 'osascript -e \'tell application "System Events" to key code "123" using command down\'' );
    }
}