📄 function.imagegrabwindow.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Captures a window</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.imagegrabscreen.html">imagegrabscreen</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.imageinterlace.html">imageinterlace</a></div> <div class="up"><a href="ref.image.html">GD Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.imagegrabwindow" class="refentry"> <div class="refnamediv"> <h1 class="refname">imagegrabwindow</h1> <p class="verinfo">(PHP 5 >= 5.2.2)</p><p class="refpurpose"><span class="refname">imagegrabwindow</span> — <span class="dc-title">Captures a window</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">resource</span> <span class="methodname"><b><b>imagegrabwindow</b></b></span> ( <span class="methodparam"><span class="type">int</span> <tt class="parameter">$window</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$client_area</tt></span> ] )</div> <p class="para rdfs-comment"> Grabs a window or its client area using a windows handle (HWND property in COM instance) </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">window</tt></i></span> <dd> <p class="para"> The HWND window ID. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">client_area</tt></i></span> <dd> <p class="para"> Include the client area of the application window. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns an image resource identifier on success, <b><tt>FALSE</tt></b> on failure. </p> </div> <div class="refsect1 errors"> <h3 class="title">Errors/Exceptions</h3> <p class="para"> E_NOTICE is issued if <i><tt class="parameter">window_handle</tt></i> is invalid window handle. E_WARNING is issued if the Windows API is too old. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>imagegrabwindow()</b> example</b></p> <div class="example-contents"><p> Capture a window (IE for example) </p></div> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><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">$im</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> <div class="example-contents"><p> Capture a window (IE for example) but with its content </p></div> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$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></span></code></div> </div> </div> </p> </div> <div class="refsect1 notes"> <h3 class="title">Notes</h3> <blockquote><p><b class="note">Note</b>: This function is only available on Windows. <br /> </p></blockquote> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.imagegrabscreen.html" class="function" rel="rdfs-seeAlso">imagegrabscreen()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.imagegrabscreen.html">imagegrabscreen</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.imageinterlace.html">imageinterlace</a></div> <div class="up"><a href="ref.image.html">GD Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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