No, it doesn't work. lwindow is swallowed by emacs.<div></div><div><div><br></div><div><br></div><div style="padding: 2px 0px; font-family: Arial Narrow; font-size: 12px;">------------------&nbsp;原始邮件&nbsp;------------------</div><div style="background: rgb(239, 239, 239); padding: 8px; font-size: 12px;"><div><b>发件人:</b>&nbsp;"Eli Zaretskii"&lt;eliz@gnu.org&gt;;</div><div><b>发送时间:</b>&nbsp;2019年9月25日(星期三) 下午2:24</div><div><b>收件人:</b>&nbsp;"Albert"&lt;georgealbert@qq.com&gt;;<wbr></div><div><b>抄送:</b>&nbsp;"lekktu"&lt;lekktu@gmail.com&gt;;"37495"&lt;37495@debbugs.gnu.org&gt;;<wbr></div><div><b>主题:</b>&nbsp;Re: bug#37495: 27.0.50; lwindow doesn't pass to system</div></div><div><br></div>&gt; From: "Albert" &lt;georgealbert@qq.com&gt;<br>&gt; Date: Wed, 25 Sep 2019 13:27:09 +0800<br>&gt; Cc: 37495 &lt;37495@debbugs.gnu.org&gt;<br>&gt; <br>&gt; C:\emacs-27.0.50-snapshot-2019-09-18-x86_64\bin&gt;emacs -Q --eval "(setq w32-pass-lwindow-to-system t)"<br><br>Does lwindow work when you invoke Emacs that way?<br></div>