Can Applescript send arrow keys via key down?

问题

I am trying to control google earth using the arrow keys, however, I want to do this with applescript. Essentially this code should work and I'll tell you what it actually does.

tell application "System Events"
     delay 3
     key down 124 #Value of key right
     delay 3
     key up 124
end tell 

This code should wait for me to go to google earth, then it will hold the right arrow key for 3 seconds. However, it just hits 'a'. I saw some recommendations to do the following:

key down (key code 124)

This sort of works, it press the right key only once and does not hold it.

If you do this with a key such as D (also used to navigate right in google earth) it works perfectly. (I think "key down 2" does that).

So my question is, is there a way to actually make the arrow keys work? "Working" here refers to sending a key down event that does not tie down the script and could later be canceled with a key up event. I would really like to be able to control the flight simulator (WASD does not work -- arrow keys do).

Thanks for all suggestions,

Jake

回答1:

This script presses the right arrow key for 3 seconds:

tell application "System Events"
    set now to the seconds of the (current date)
    set later to now + 3
    if later > 60 then set later to later - 60
    repeat while the seconds of the (current date) is not later
        key down (key code 124)
    end repeat
end tell

I don't know if this will work with Google Earth, but I do know that the script is correct.

来源：https://stackoverflow.com/questions/17606613/can-applescript-send-arrow-keys-via-key-down