如何在Applescript中將UI元素設置爲true？

Question

tell application "System Events" 
    if UI elements enabled is true then 
     tell application "System Preferences" 
      activate 
      set current pane to pane id "com.apple.preference.universalaccess" 
      display dialog "This script requires access for assistive evices be enabled." & return & return & "To continue, click the OK button and enter an administrative password in the forthcoming security dialog." with icon 1 
     end tell 
     set UI elements enabled to true 

     if UI elements enabled is false then return "user cancelled" 
     delay 1 
    end if 
end tell 

當我運行這個，我得到一個錯誤。 「無法將啓用應用程序的UI元素設置爲真」

任何想法可能會發生這種情況？

附加信息：OS X Yosemite

Answer 1

我剛剛爲某人最近回答了這個基本問題。看到我的回答here。

Answer 2

啓用的UI元素是自OS X Mavericks以來的只讀屬性。試試這個：

tell application "System Events" 
    if not UI elements enabled then 
     display dialog "This script requires access for assistive devices be enabled." & return & return & "To continue, click the OK button and enter an administrative password in the forthcoming security dialog." with icon 2 
     if button returned of result is equal to "OK" then 
      do shell script "sudo sqlite3 'Library/Application Support/com.apple.TCC/TCC.db' 'insert or replace into access values (\"kTCCServiceAccessibility\",\"com.apple.ScriptEditor2\",0,1,0,null);'" with administrator privileges 
     end if 
    end if 
end tell