UWP C＃Windows照片属性

Question

我想在Windows属性Photo的帮助下阅读GainControl值。不幸的是，我没有任何价值，也无法写出来。我做错了什么？

$mail = new PHPMailer();
$mail->IsSendmail();
$body = "body of consult";

$mail->CharSet = 'UTF-8';
$mail->From = "user@hotmail.com"; // sender
$mail->FromName = "User Name"; // sender
$mail->addReplyTo("user@hotmail.com","User Name"); // sender
$mail->AddAddress("myaccount@gmail.com", "my name"); //destination (Me)
$mail->Subject = "User Subject";
$mail->AltBody = ""; // optional, comment out and test
$mail->MsgHTML($body);
$mail->IsHTML(true);
if(!$mail->Send()) {
  return(false);
} else {
  return(true);
}

我没有任何价值，写作时也是例外

  

＆＃34; System.ArgumentException＆＃34;在System.Private.CoreLib.ni.dll中   价值不在预期范围内。

用分母和分子编写