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164 lines
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164 lines
5.1 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>Set device callback function</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.gupnp-device-action-callback-set" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">gupnp_device_action_callback_set</h1>
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<p class="verinfo">(PECL gupnp >= 0.1.0)</p><p class="refpurpose"><span class="refname">gupnp_device_action_callback_set</span> — <span class="dc-title">Set device callback function</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.gupnp-device-action-callback-set-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>gupnp_device_action_callback_set</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$root_device</code></span>
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, <span class="methodparam"><span class="type">int</span> <code class="parameter">$signal</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$action_name</code></span>
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, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$callback</code></span>
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[, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$arg</code></span>
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] ) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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Set device callback function for signal and action.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.gupnp-device-action-callback-set-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">root_device</code></dt>
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<dd>
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<p class="para">
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A root device identifier, returned by <span class="function"><a href="gupnp_root_device_new.html" class="function">gupnp_root_device_new()</a></span>.
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</p>
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</dd>
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<dt>
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<code class="parameter">signal</code></dt>
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<dd>
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<p class="para">
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The value of signal. Signal can be one of the following values:
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<dl>
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<dt>
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<strong><code>GUPNP_SIGNAL_ACTION_INVOKED</code></strong></dt>
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<dd>
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<span class="simpara">
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Emitted whenever an action is invoked. Handler should process action
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and must call either <span class="function"><a href="gupnp_service_action_return.html" class="function">gupnp_service_action_return()</a></span>
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or <span class="function"><a href="gupnp_service_action_return_error.html" class="function">gupnp_service_action_return_error()</a></span>.
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</span>
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</dd>
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<dt>
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<strong><code>GUPNP_SIGNAL_NOTIFY_FAILED</code></strong></dt>
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<dd>
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<span class="simpara">
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Emitted whenever notification of a client fails.
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</span>
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</dd>
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</dl>
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</p>
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</dd>
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<dt>
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<code class="parameter">action_name</code></dt>
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<dd>
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<p class="para">
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The name of action.
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</p>
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</dd>
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<dt>
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<code class="parameter">callback</code></dt>
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<dd>
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<p class="para">
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The callback function for the certain signal. Typically, callback function
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takes on three parameters. The <code class="parameter">service</code> parameter's
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identifier being the first, <code class="parameter">action</code> parameter's
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identifier (in case GUPNP_SIGNAL_ACTION_INVOKED signal) or
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<code class="parameter">error</code> parameter's message (in case GUPNP_SIGNAL_NOTIFY_FAILED
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signal) being the second, and the <code class="parameter">arg</code> is third.
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</p>
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</dd>
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<dt>
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<code class="parameter">arg</code></dt>
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<dd>
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<p class="para">
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User data for <code class="parameter">callback</code>.
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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.gupnp-device-action-callback-set-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 errors" id="refsect1-function.gupnp-device-action-callback-set-errors">
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<h3 class="title">错误／异常</h3>
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<p class="para">
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Issues E_WARNING either with not valid callback function or with not valid signal.
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.gupnp-device-action-callback-set-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="gupnp_root_device_new.html" class="function" rel="rdfs-seeAlso">gupnp_root_device_new()</a> - Create a new root device</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> |