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<?xml version="1.0" encoding="UTF-8"?>
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<title>DNSSD.ServiceTypeBrowser</title>
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KDE 4.9 PyKDE API Reference
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<h1>ServiceTypeBrowser Class Reference</h1>
<code>from PyKDE4.dnssd import *</code>
<p>
Inherits: QObject<br />
Namespace: <a href="../dnssd/DNSSD.html">DNSSD</a><br />
<h2>Detailed Description</h2>
<p>ServiceBrowser servicebrowser.h DNSSD/ServiceBrowser
Browses the service types being published on a domain
</p>
<p>
This class is mostly useful for generic utilities for
browsing all the published services on a local network.
Applications that wish to find out about available services
of a particular type (such as web servers) should use
ServiceBrowser.
</p>
<p>
ServiceTypeBrowser provides a list of all the service types
published by at least one service on a given domain.
</p>
<p>
<dl class="author" compact><dt><b>Author:</b></dt><dd> Jakub Stachowski </dd></dl>
</p>
<table border="0" cellpadding="0" cellspacing="0"><tr><td colspan="2"><br><h2>Signals</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#finished">finished</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#serviceTypeAdded">serviceTypeAdded</a> (QString type)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#serviceTypeRemoved">serviceTypeRemoved</a> (QString type)</td></tr>
<tr><td colspan="2"><br><h2>Methods</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#ServiceTypeBrowser">__init__</a> (self, QString domain=QString(), QObject parent=0)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="#isRunning">isRunning</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">QStringList </td><td class="memItemRight" valign="bottom"><a class="el" href="#serviceTypes">serviceTypes</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#startBrowse">startBrowse</a> (self)</td></tr>
</table>
<hr><h2>Signal Documentation</h2><a class="anchor" name="finished"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> finished</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname">)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Emitted when the list of published service types has settled
</p>
<p>
This signal is emitted once after startBrowse() is called
when the types of all the services that are
currently published have been reported (even if no services
are available or the DNS-SD service is not available).
It is emitted again when a new batch of service types become
available or disappear.
</p>
<p>
For example, if a new host is connected to network and
announces services of several new types,
they will be reported by several serviceTypeAdded() signals
and the whole batch will be concluded by finished().
</p>
<p>
This signal can be used by applications that just want to
get a list of the currently available service types
(similar to a directory listing) and do not care about
adding or removing service types that appear or disappear later.
</p>
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd> serviceTypeAdded() and serviceTypeRemoved()
</dd></dl>
</p><dl compact><dt><b>Signal syntax:</b></dt><dd><code>QObject.connect(source, SIGNAL("finished()"), target_slot)</code></dd></dl></div></div><a class="anchor" name="serviceTypeAdded"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> serviceTypeAdded</td>
<td>(</td>
<td class="paramtype">QString </td>
<td class="paramname"><em>type</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>A new type of service has been found
</p>
<p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>type</em> </td><td> the service type
</td></tr>
</table></dl>
<p> <dl class="see" compact><dt><b>See also:</b></dt><dd> serviceTypeAdded() and finished()
</dd></dl>
</p><dl compact><dt><b>Signal syntax:</b></dt><dd><code>QObject.connect(source, SIGNAL("serviceTypeAdded(const QString&)"), target_slot)</code></dd></dl></div></div><a class="anchor" name="serviceTypeRemoved"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> serviceTypeRemoved</td>
<td>(</td>
<td class="paramtype">QString </td>
<td class="paramname"><em>type</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Emitted when there are no more services of this type
</p>
<p>
<dl class="warning" compact><dt><b>Warning:</b></dt><dd>
This signal is not reliable: it is possible that it will not be
emitted even after last service of this type disappeared
</dd></dl> </p>
<p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>type</em> </td><td> the service type
</td></tr>
</table></dl>
<p> <dl class="see" compact><dt><b>See also:</b></dt><dd> serviceTypeAdded() and finished()
</dd></dl>
</p><dl compact><dt><b>Signal syntax:</b></dt><dd><code>QObject.connect(source, SIGNAL("serviceTypeRemoved(const QString&)"), target_slot)</code></dd></dl></div></div><hr><h2>Method Documentation</h2><a class="anchor" name="ServiceTypeBrowser"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">__init__</td>
<td>(</td>
<td class="paramtype"> <em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString </td>
<td class="paramname"><em>domain=QString()</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QObject </td>
<td class="paramname"><em>parent=0</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Create a ServiceTypeBrowser for a domain
</p>
<p>
The link-local domain (the LAN subnet for this computer) will
be used if no <b>domain</b> is given. DomainBrowser can be used
to get a list of browsing domains.
</p>
<p>
Note that WAN domains may not support service type browsing.
</p>
<p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>domain</em> </td><td> a browsing domain to search
<tr><td></td><td valign="top"><em>parent</em> </td><td> the parent object (see QObject documentation)
</td></tr>
</table></dl>
<p> <dl class="see" compact><dt><b>See also:</b></dt><dd> startBrowse() and ServiceBrowser.isAvailable()
</dd></dl>
</p></div></div><a class="anchor" name="isRunning"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">bool isRunning</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p><dl class="deprecated" compact><dt><b>Deprecated:</b></dt><dd>
This method is unnecessary, since it is safe to call startBrowse()
multiple times.
</dd></dl>
</p></div></div><a class="anchor" name="serviceTypes"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">QStringList serviceTypes</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>All the service types currently being published
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> a list of service types, in the form _type._tcp or _type._udp
</dd></dl>
</p></div></div><a class="anchor" name="startBrowse"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> startBrowse</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Starts browsing
</p>
<p>
Only the first call to this function will have any effect.
</p>
<p>
Browsing stops when the ServiceBrowser object is destroyed.
</p>
<p>
<dl class="warning" compact><dt><b>Warning:</b></dt><dd> The serviceTypeAdded() signal may be emitted before this
function returns.
</dd></dl> </p>
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd> serviceTypeAdded(), serviceTypeRemoved() and finished()
</dd></dl>
</p></div></div>
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