使用Windows API 隐藏/显示任务栏代码,CSharp代码库,德仔网

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【CSharp】使用Windows API 隐藏/显示任务栏

作者:三角猫 / 发布于2011/7/20/ 897

windows 的任务栏，其实是一个窗口(window)，只要找到这个窗口的句柄，显示和隐藏就轻而易举了，任务栏是个没有标题的窗口，但知道它的类名是 Shell_TrayWnd，所以，可以用 FindWindow 或 FindWindowEx 去查找它的句柄，而显示和隐藏窗口，使用的是 ShowWindow：

<div>
<ul>
    <li>引入Windows API 的声明</li>
</ul>
<div class="wp_codebox">
<pre>
[<span style="color: rgb(43,145,175)">DllImport</span>(<span style="color: rgb(163,21,21)">"user32.dll"</span>, EntryPoint = <span style="color: rgb(163,21,21)">"FindWindowEx"</span>, SetLastError = <span style="color: blue">true</span>)]
<span style="color: blue">static extern </span><span style="color: rgb(43,145,175)">IntPtr </span>FindWindowEx(<span style="color: rgb(43,145,175)">IntPtr </span>hwndParent, <span style="color: rgb(43,145,175)">IntPtr </span>hwndChildAfter, <span style="color: blue">string </span>lpszClass, <span style="color: blue">string </span>lpszWindow);

[<span style="color: rgb(43,145,175)">DllImport</span>(<span style="color: rgb(163,21,21)">"user32.dll"</span>, EntryPoint = <span style="color: rgb(163,21,21)">"ShowWindow"</span>, SetLastError = <span style="color: blue">true</span>)]
<span style="color: blue">static extern bool </span>ShowWindow(<span style="color: rgb(43,145,175)">IntPtr </span>hWnd, <span style="color: blue">uint </span>nCmdShow);

<ul><li>显示/隐藏任务栏窗口</li></ul><div class="wp_codebox"><pre><span style="color: green">//</span><span style="color: rgb(43,145,175)">IntPtr </span>trayHwnd = FindWindowEx(<span style="color: rgb(43,145,175)">IntPtr</span>.Zero, <span style="color: rgb(43,145,175)">IntPtr</span>.Zero, <span style="color: rgb(163,21,21)">"Shell_TrayWnd"</span>, <span style="color: blue">null</span>);

<span style="color: rgb(43,145,175)">IntPtr </span>trayHwnd = FindWindow(<span style="color: rgb(163,21,21)">"Shell_TrayWnd"</span>, <span style="color: blue">null</span>);

<span style="color: blue">if </span>(trayHwnd != <span style="color: rgb(43,145,175)">IntPtr</span>.Zero)   {    ShowWindow(trayHwnd, 0);
}</pre>
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上面的代码中， ShowWindow 的第二参数， <strong>1</strong> 表示显示， <strong>0</strong> 表示隐藏
</pre>
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