<refname>sd_session_get_class</refname>
<refname>sd_session_get_display</refname>
<refname>sd_session_get_tty</refname>
+ <refname>sd_session_get_vt</refname>
<refpurpose>Determine state of a specific session</refpurpose>
</refnamediv>
<paramdef>const char* <parameter>session</parameter></paramdef>
<paramdef>char** <parameter>tty</parameter></paramdef>
</funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_session_get_vt</function></funcdef>
+ <paramdef>const char* <parameter>session</parameter></paramdef>
+ <paramdef>unsigned int* <parameter>vt</parameter></paramdef>
+ </funcprototype>
</funcsynopsis>
</refsynopsisdiv>
be used to determine the class of the session
identified by the specified session identifier. The
returned string is one of <literal>user</literal>,
- <literal>greeter</literal> or
- <literal>lock-screen</literal> and needs to be freed
+ <literal>greeter</literal>,
+ <literal>lock-screen</literal>, or
+ <literal>background</literal> and needs to be freed
with the libc
<citerefentry><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
call after use.</para>
<citerefentry><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
call after use.</para>
- <para>If the <literal>session</literal> parameter of
- any of these functions is passed as NULL the operation
- is executed for the session the calling process is a
- member of, if there is any.</para>
+ <para><function>sd_session_get_vt()</function>
+ may be used to determine the VT number of the
+ session identified by the specified session
+ identifier. This function will return an error if
+ the seat does not support VTs.</para>
+
+ <para>If the <varname>session</varname> parameter of
+ any of these functions is passed as
+ <constant>NULL</constant>, the operation is executed
+ for the session the calling process is a member of, if
+ there is any.</para>
</refsect1>
<refsect1>
<title>Return Value</title>
- <para>If the test succeeds
+ <para>If the test succeeds,
<function>sd_session_is_active()</function> returns a
positive integer, if it fails 0. On success
<function>sd_session_get_state()</function>,
<function>sd_session_get_tty()</function>
interfaces are available as shared library, which can
be compiled and linked to with the
- <literal>libsystemd-login</literal>
- <citerefentry><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ <constant>libsystemd-login</constant> <citerefentry><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
file.</para>
</refsect1>