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35 lines
1.8 KiB
HTML
35 lines
1.8 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>激活或禁止隔行扫描</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.imageinterlace" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">imageinterlace</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">imageinterlace</span> — <span class="dc-title">激活或禁止隔行扫描</span></p>
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</div>
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<div class="refsect1 unknown-seealsp" id="refsect1-function.imageinterlace-unknown-seealsp">
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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>imageinterlace</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$image</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$interlace</code></span>
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] ) : <span class="type">int</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>imageinterlace()</strong></span> 打开或关闭隔行扫描的比特标记。如果
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<code class="parameter">interlace</code> 为 1 则图像为隔行扫描的，如果
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<code class="parameter">interlace</code> 为 0 则图像为非隔行扫描的。
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</p>
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<p class="para">
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如果设定了隔行扫描比特标记而图像使用 JPEG 格式，则图像被创建为渐进式 JPEG。
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</p>
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<p class="para">
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本函数返回图像中是否设定了隔行扫描比特标记。
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</p>
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</div>
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</div></div></div></body></html> |