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<h2 class="title">Browsing devices and services</h2>
<p class="para">
This example shows how to obtain information about all devices and
services. It starts an infinite loop (use CLI), and if any of
available devices or services are found, the proper callback
function will be invoked.
</p>
<p class="para">
<div class="example" id="example-4337">
<p><strong>Example #1 Search for all UPnP devices and services.</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /><br /></span><span style="color: #FF8000">/* Callback for available device */<br /></span><span style="color: #007700">function </span><span style="color: #0000BB">device_proxy_available_cb</span><span style="color: #007700">(</span><span style="color: #0000BB">$proxy</span><span style="color: #007700">, </span><span style="color: #0000BB">$arg</span><span style="color: #007700">)<br />{<br /> </span><span style="color: #0000BB">$info </span><span style="color: #007700">= </span><span style="color: #0000BB">gupnp_device_info_get</span><span style="color: #007700">(</span><span style="color: #0000BB">$proxy</span><span style="color: #007700">);<br /><br /> </span><span style="color: #0000BB">$type </span><span style="color: #007700">= </span><span style="color: #0000BB">$info</span><span style="color: #007700">[</span><span style="color: #DD0000">'device_type'</span><span style="color: #007700">];<br /> </span><span style="color: #0000BB">$location </span><span style="color: #007700">= </span><span style="color: #0000BB">$info</span><span style="color: #007700">[</span><span style="color: #DD0000">'location'</span><span style="color: #007700">];<br /><br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Device available:\n"</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"\ttype: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$type</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"\tlocation: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$location</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #FF8000">/* Callback for available service */<br /></span><span style="color: #007700">function </span><span style="color: #0000BB">service_proxy_available_cb</span><span style="color: #007700">(</span><span style="color: #0000BB">$proxy</span><span style="color: #007700">, </span><span style="color: #0000BB">$arg</span><span style="color: #007700">)<br />{<br /> </span><span style="color: #0000BB">$info </span><span style="color: #007700">= </span><span style="color: #0000BB">gupnp_service_info_get</span><span style="color: #007700">(</span><span style="color: #0000BB">$proxy</span><span style="color: #007700">);<br /><br /> </span><span style="color: #0000BB">$type </span><span style="color: #007700">= </span><span style="color: #0000BB">$info</span><span style="color: #007700">[</span><span style="color: #DD0000">'service_type'</span><span style="color: #007700">];<br /> </span><span style="color: #0000BB">$location </span><span style="color: #007700">= </span><span style="color: #0000BB">$info</span><span style="color: #007700">[</span><span style="color: #DD0000">'location'</span><span style="color: #007700">];<br /><br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Service available:\n"</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"\ttype: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$type</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"\tlocation: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$location</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #FF8000">/* Create the UPnP context */<br /></span><span style="color: #0000BB">$context </span><span style="color: #007700">= </span><span style="color: #0000BB">gupnp_context_new</span><span style="color: #007700">();<br />if (!</span><span style="color: #0000BB">$context</span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Error creating the GUPnP context\n"</span><span style="color: #007700">);<br /> exit(-</span><span style="color: #0000BB">1</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #FF8000">/* We're interested in everything */<br /></span><span style="color: #0000BB">$cp </span><span style="color: #007700">= </span><span style="color: #0000BB">gupnp_control_point_new</span><span style="color: #007700">(</span><span style="color: #0000BB">$context</span><span style="color: #007700">, </span><span style="color: #DD0000">"ssdp:all"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* Set callbacks */<br /></span><span style="color: #0000BB">gupnp_control_point_callback_set</span><span style="color: #007700">(</span><span style="color: #0000BB">$cp</span><span style="color: #007700">, <br /> </span><span style="color: #0000BB">GUPNP_SIGNAL_DEVICE_PROXY_AVAILABLE</span><span style="color: #007700">, </span><span style="color: #DD0000">'device_proxy_available_cb'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">gupnp_control_point_callback_set</span><span style="color: #007700">(</span><span style="color: #0000BB">$cp</span><span style="color: #007700">, <br /> </span><span style="color: #0000BB">GUPNP_SIGNAL_SERVICE_PROXY_AVAILABLE</span><span style="color: #007700">, </span><span style="color: #DD0000">'service_proxy_available_cb'</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* Start for browsing (infinite loop, hit Ctrl-C to interrupt) */<br /></span><span style="color: #0000BB">gupnp_control_point_browse_start</span><span style="color: #007700">(</span><span style="color: #0000BB">$cp</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
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