[SOS] Cocoa + AppleScript problème

[Gercofis]

• (void)envoiCaractere:(NSString *)touches
  {
  NSString * sourceScript ;
  NSDictionary * errorInfo = nil ;
  NSAppleScript * script ;
  NSAppleEventDescriptor * response ;

  NSLog( @“%@”, sourceScript ) ;

  if( ( script = [[NSAppleScript alloc] initWithSource:sourceScript ] ) != nil )
  {
  if( ( response = [script executeAndReturnError:&errorInfo] ) != nil )
  {
  NSLog(@“reponse = Ok”);

…

Build is ok
run = boom !! :-((

sourceScript = [NSString stringWithFormat:@“tell application "System Events" to tell (get first process whose frontmost is true)\n keystroke "touches"\n end tell\n”];
Log = reponse = Ok

but write “touches” ;-(

Browser: Safari 523.12.2
Operating System: Mac OS X (10.4)