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https://github.com/fofolee/uTools-Manuals.git
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126 lines
7.9 KiB
HTML
126 lines
7.9 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Captures a window</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.imagegrabwindow" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">imagegrabwindow</h1>
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<p class="verinfo">(PHP 5 >= 5.2.2, PHP 7)</p><p class="refpurpose"><span class="refname">imagegrabwindow</span> — <span class="dc-title">Captures a window</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.imagegrabwindow-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>imagegrabwindow</strong></span>
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( <span class="methodparam"><span class="type">int</span> <code class="parameter">$window_handle</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$client_area</code><span class="initializer"> = 0</span></span>
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] ) : <span class="type">resource</span></div>
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<p class="para rdfs-comment">
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Grabs a window or its client area using a windows handle (HWND property in COM instance)
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</p>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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This function is only available on Windows.
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</p>
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</p></blockquote>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.imagegrabwindow-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">window_handle</code></dt>
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<dd>
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<p class="para">
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The HWND window ID.
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</p>
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</dd>
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<dt>
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<code class="parameter">client_area</code></dt>
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<dd>
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<p class="para">
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Include the client area of the application window.
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.imagegrabwindow-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Returns an image resource identifier on success, <strong><code>FALSE</code></strong> on failure.
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</p>
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</div>
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<div class="refsect1 errors" id="refsect1-function.imagegrabwindow-errors">
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<h3 class="title">错误／异常</h3>
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<p class="para">
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E_NOTICE is issued if <code class="parameter">window_handle</code> is invalid
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window handle.
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E_WARNING is issued if the Windows API is too old.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.imagegrabwindow-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-3715">
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<p><strong>Example #1 <span class="function"><strong>imagegrabwindow()</strong></span> example</strong></p>
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<div class="example-contents"><p>
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Capture a window (IE for example)
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</p></div>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />$browser </span><span style="color: #007700">= new </span><span style="color: #0000BB">COM</span><span style="color: #007700">(</span><span style="color: #DD0000">"InternetExplorer.Application"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$handle </span><span style="color: #007700">= </span><span style="color: #0000BB">$browser</span><span style="color: #007700">-></span><span style="color: #0000BB">HWND</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$browser</span><span style="color: #007700">-></span><span style="color: #0000BB">Visible </span><span style="color: #007700">= </span><span style="color: #0000BB">true</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$im </span><span style="color: #007700">= </span><span style="color: #0000BB">imagegrabwindow</span><span style="color: #007700">(</span><span style="color: #0000BB">$handle</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$browser</span><span style="color: #007700">-></span><span style="color: #0000BB">Quit</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">imagepng</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">, </span><span style="color: #DD0000">"iesnap.png"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">imagedestroy</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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<div class="example-contents"><p>
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Capture a window (IE for example) but with its content
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</p></div>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />$browser </span><span style="color: #007700">= new </span><span style="color: #0000BB">COM</span><span style="color: #007700">(</span><span style="color: #DD0000">"InternetExplorer.Application"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$handle </span><span style="color: #007700">= </span><span style="color: #0000BB">$browser</span><span style="color: #007700">-></span><span style="color: #0000BB">HWND</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$browser</span><span style="color: #007700">-></span><span style="color: #0000BB">Visible </span><span style="color: #007700">= </span><span style="color: #0000BB">true</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$browser</span><span style="color: #007700">-></span><span style="color: #0000BB">Navigate</span><span style="color: #007700">(</span><span style="color: #DD0000">"http://www.libgd.org"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* Still working? */<br /></span><span style="color: #007700">while (</span><span style="color: #0000BB">$browser</span><span style="color: #007700">-></span><span style="color: #0000BB">Busy</span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">com_message_pump</span><span style="color: #007700">(</span><span style="color: #0000BB">4000</span><span style="color: #007700">);<br />}<br /></span><span style="color: #0000BB">$im </span><span style="color: #007700">= </span><span style="color: #0000BB">imagegrabwindow</span><span style="color: #007700">(</span><span style="color: #0000BB">$handle</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$browser</span><span style="color: #007700">-></span><span style="color: #0000BB">Quit</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">imagepng</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">, </span><span style="color: #DD0000">"iesnap.png"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">imagedestroy</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.imagegrabwindow-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="imagegrabscreen.html" class="function" rel="rdfs-seeAlso">imagegrabscreen()</a> - Captures the whole screen</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |