Applescript：“密钥代码”命令不起作用

Question

I'm trying to run a code to open an app and execute a keyboard shortcut while in it. When I try to run the code, I receive a message saying: 'Expected end of line but found property' while highlighting the "key". Is the "key code" registering as two different commands?

tell application "Evernote"
activate

tell application "Evernote" keycode 45 using {command down, shift down}

end tell

Answer 1

You have to invoke "System Events" to use UI scripting.

tell application "Evernote"
    activate
    delay 1
    tell application "System Events"
        tell process "Evernote" to key code 45 using {command down, shift down}
    end tell
end tell

More info at http://macbiblioblog.blogspot.com/2014/12/key-codes-for-function-and-special-keys.html

Answer 2

key code belongs to System Events and consists of two words

tell application "System Events" to key code 45 using {command down, shift down}

As keystrokes are always sent to the frontmost application it's actually not needed to refer to the target process when it has been explicitly made active.