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<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-1632085368384154" crossorigin="anonymous"></script><script src="https://autohotkey.top/gtag.js"></script></head> <body> <h1>ControlShowDropDown</h1> <p>显示 ComboBox 控件的下拉列表.</p> <pre class="Syntax"><span class="func">ControlShowDropDown</span> Control <span class="optional">, WinTitle, WinText, ExcludeTitle, ExcludeText</span></pre> <h2 id="Parameters">参数</h2> <dl> <dt>Control</dt> <dd> <p>类型: <a href="../Concepts.htm#strings">字符串</a>, <a href="../Concepts.htm#numbers">整数</a>或<a href="../Objects.htm">对象</a></p> 控件的 ClassNN, 文本或 HWND, 或具有 <code>Hwnd</code> 属性的对象. 有关详情, 请参阅 <a href="Control.htm#Parameter">Control 参数</a>.</p> </dd> <dt>WinTitle, WinText, ExcludeTitle, ExcludeText</dt> <dd> <p>类型: <a href="../Concepts.htm#strings">字符串</a>, <a href="../Concepts.htm#numbers">整数</a>或<a href="../Objects.htm">对象</a></p> <p>如果这些都未设置或省略, 将使用<a href="../misc/WinTitle.htm#LastFoundWindow">上次找到的窗口</a>. 否则, 为 <em>WinTitle</em> 指定<a href="../misc/WinTitle.htm">窗口标题或其他条件</a>, 来标识目标窗口, 和/或为 <em>WinText</em> 指定目标窗口的单个文本元素的子字符串(由包含的 Window Spy 实用程序显示). 如果 <a href="DetectHiddenText.htm">DetectHiddenText</a> 已经打开, 则检测隐藏文本元素. 标题或文本包含 <em>ExcludeTitle</em> 或 <em>ExcludeText</em> 的窗口将不被考虑.</p> </dd> </dl> <h2 id="Error_Handling">错误处理</h2> <p>如果找不到窗口或控件, 则抛出 <a href="Error.htm#TargetError">TargetError</a>.</p> <p>如果消息不能被发送到控件, 则抛出 <a href="Error.htm#OSError">OSError</a>.</p> <h2 id="Remarks">备注</h2> <p>为了提高可靠性, 每次使用此函数后都会自动执行延迟. 该延迟可以通过 <a href="SetControlDelay.htm">SetControlDelay</a> 或给 <a href="../Variables.htm#ControlDelay">A_ControlDelay</a> 赋值来更改. 有关详情, 请参阅 <a href="SetControlDelay.htm#Remarks">SetControlDelay 备注</a>.</p> <p>窗口标题和文本是区分大小写的. 除非 <a href="DetectHiddenWindows.htm">DetectHiddenWindows</a> 被打开, 否则不会检测隐藏窗口.</p> <h2 id="Related">相关</h2> <p><a href="ControlHideDropDown.htm">ControlHideDropDown</a>, <a href="Control.htm">控件函数</a></p> <h2 id="Examples">示例</h2> <div class="ex" id="ExBasic"> <p><a class="ex_number" href="#ExBasic"></a> 打开运行对话框, 显示其下拉列表 2 秒, 然后关闭对话框.</p> <pre>Send "#r" <em>; 打开运行对话框.</em> WinWaitActive "ahk_class #32770" <em>; 等待对话框出现.</em> ControlShowDropDown "ComboBox1" <em>; 显示下拉列表. 省略第二个参数, 以便使用最后找到的窗口.</em> Sleep 2000 ControlHideDropDown "ComboBox1" <em>; 隐藏下拉列表.</em> Sleep 1000 Send "{Esc}" <em>; 关闭对话框窗口.</em></pre> </div> <a href="https://dftg.net">dftg</a><!-- Cloudflare Pages Analytics --><script defer src='https://static.cloudflareinsights.com/beacon.min.js' data-cf-beacon='{"token": "d5a9c4fcb9b6482fa53ce820d892f969"}'></script><!-- Cloudflare Pages Analytics --><script defer src="https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015" integrity="sha512-ZpsOmlRQV6y907TI0dKBHq9Md29nnaEIPlkf84rnaERnq6zvWvPUqr2ft8M1aS28oN72PdrCzSjY4U6VaAw1EQ==" data-cf-beacon='{"rayId":"92e528b47d08870b","version":"2025.3.0","r":1,"serverTiming":{"name":{"cfExtPri":true,"cfL4":true,"cfSpeedBrain":true,"cfCacheStatus":true}},"token":"51750bb5dc4f40cc91a5ec55c63bbc01","b":1}' crossorigin="anonymous"></script> </body> </html>