forked from AuroraMiddleware/gtk
2f965d22f7
2004-09-01 Matthias Clasen <mclasen@redhat.com> * gtk/running.sgml: Mention that modules can also be specified in a setting.
323 lines
11 KiB
Plaintext
323 lines
11 KiB
Plaintext
<refentry id="gtk-running" revision="10 Jan 2002">
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<refmeta>
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<refentrytitle>Running GTK+ Applications</refentrytitle>
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<manvolnum>3</manvolnum>
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<refmiscinfo>GTK Library</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>Running GTK+ Applications</refname>
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<refpurpose>
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How to run and debug your GTK+ application
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</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Running and debugging GTK+ Applications</title>
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<refsect2>
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<title>Common commandline options</title>
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<para>
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All GTK+ applications support a number of standard commandline
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options. These are removed from <literal>argv</literal> by <link
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linkend="gtk-init">gtk_init()</link>. Modules may parse and remove
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further options. The <link linkend="x11-cmdline">X11</link> and
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<link linkend="win32-cmdline">Windows</link> GDK backends parse
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some additional commandline options.
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</para>
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<formalpara>
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<title><systemitem>--gtk-module <replaceable>module</replaceable></systemitem></title>
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<para>
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A list of modules to load in addition to those specified in the
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<envar>GTK_MODULES</envar> environment variable and the
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<literal>gtk-modules</literal> setting.
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</para>
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</formalpara>
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<formalpara>
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<title><systemitem>--g-fatal-warnings</systemitem></title>
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<para>
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Make GTK+ abort on all warnings. This is useful to stop on the first
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warning in a debugger, if your application is printing multiple
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warnings. It's almost always best to start debugging with the first
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warning that occurs.
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</para>
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</formalpara>
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<formalpara>
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<title><systemitem>--gtk-debug <replaceable>options</replaceable></systemitem></title>
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<para>
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A list of <link linkend="GTK-Debug-Options">debug options</link>
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to turn on in addition to those specified in the <envar>GTK_DEBUG</envar>
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environment variable.
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This option is only available if GTK+ has been configured with
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<option>--enable-debug=yes</option>.
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</para>
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</formalpara>
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<formalpara>
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<title><systemitem>--gtk-no-debug <replaceable>options</replaceable></systemitem></title>
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<para>
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A list of <link linkend="GTK-Debug-Options">debug options</link>
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to turn off.
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This option is only available if GTK+ has been configured with
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<option>--enable-debug=yes</option>.
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</para>
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</formalpara>
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<para>
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The following options are really used by GDK, not by GTK+, but we
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list them here for completeness nevertheless.
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</para>
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<formalpara>
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<title><systemitem>--class <replaceable>class</replaceable></systemitem></title>
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<para>
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Sets the program class; see <link linkend="gdk-set-program-class"><function>gdk_set_program_class</function>()</link>.
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</para>
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</formalpara>
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<formalpara>
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<title><systemitem>--name <replaceable>name</replaceable></systemitem></title>
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<para>
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Sets the program name.
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</para>
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</formalpara>
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<formalpara>
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<title><systemitem>--gdk-debug <replaceable>options</replaceable></systemitem></title>
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<para>
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A list of <link linkend="GDK-Debug-Options">debug options</link>
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to turn on in addition to those
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specified in the <envar>GDK_DEBUG</envar> environment variable.
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This option is only available if GTK+ has been configured with
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<option>--enable-debug=yes</option>.
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</para>
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</formalpara>
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<formalpara>
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<title><systemitem>--gdk-no-debug <replaceable>options</replaceable></systemitem></title>
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<para>
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A list of <link linkend="GDK-Debug-Options">debug options</link>
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to turn off.
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This option is only available if GTK+ has been configured with
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<option>--enable-debug=yes</option>.
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</para>
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</formalpara>
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</refsect2>
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<refsect2>
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<title>Environment variables</title>
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<para>
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GTK+ inspects a number of environment variables in addition to standard
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variables like <envar>LANG</envar>, <envar>PATH</envar>, <envar>HOME</envar>
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or <envar>DISPLAY</envar>; mostly to determine paths to look for certain
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files. The <link linkend="x11-envar">X11</link>,
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<link linkend="win32-envar">Windows</link> and
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<link linkend="fb-envar">Framebuffer</link> GDK backends use some
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additional environment variables.
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</para>
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<formalpara id="GTK-Debug-Options">
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<title><envar>GTK_DEBUG</envar></title>
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<para>
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If GTK+ has been configured with <option>--enable-debug=yes</option>,
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this variable can be set to a list of debug options, which cause GTK+
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to print out different types of debugging information.
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<variablelist>
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<varlistentry>
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<term>misc</term>
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<listitem><para>Miscellaneous information</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>text</term>
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<listitem><para>Information about text widget internals</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>tree</term>
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<listitem><para>Information about tree widget internals</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>updates</term>
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<listitem><para>Visual feedback about window updates</para></listitem>
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</varlistentry>
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</variablelist>
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The special value <literal>all</literal> can be used to turn on all debug options.
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</para>
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</formalpara>
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<formalpara>
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<title><envar>GTK_MODULES</envar></title>
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<para>
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A list of modules to load.
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</para>
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</formalpara>
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<formalpara>
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<title><envar>GTK_PATH</envar></title>
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<para>
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Specifies a list of directories to search when GTK+ is looking for
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dynamically loaded objects such as the modules specified by
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<envar>GTK_MODULES</envar>, theme engines, and input method
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modules. If the path to the dynamically loaded object is given
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as an absolute path name, then GTK+ loads it directly. Otherwise,
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GTK+ goes in turn through the directories in GTK_PATH, followed
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by the directory <filename>.gtk-2.0</filename> in the user's home
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directory, followed by the system default directory,
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which is <filename><replaceable>libdir</replaceable>/gtk-2.0/modules</filename>.
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(If <envar>GTK_EXE_PREFIX</envar> is defined, <replaceable>libdir</replaceable> is
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<filename>$GTK_EXE_PREFIX/lib</filename>. Otherwise it is the libdir
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specified when GTK+ was configured, usually
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<filename>/usr/lib</filename>, or
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<filename>/usr/local/lib</filename>.)
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For each directory in this list, GTK+ actually looks in a
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subdirectory
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<filename><replaceable>directory</replaceable>/<replaceable>version</replaceable>/<replaceable>host</replaceable>/<replaceable>type</replaceable></filename>
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Where <replaceable>version</replaceable> is derived from the
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version of GTK+ (use <literal>pkg-config
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--variable=gtk_binary_version gtk+-2.0</literal> to determine this from a
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script), <replaceable>host</replaceable> is the architecture on
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which GTK+ was built. (use <literal>pkg-config
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--variable=gtk_host gtk+-2.0</literal> to determine this from a
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script), and <replaceable>type</replaceable> is a directory
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specific to the type of modules; currently it can be
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<literal>modules</literal>, <literal>engines</literal> or
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<literal>immodules</literal> corresponding to the three types of
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modules above. Either <replaceable>version</replaceable>,
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<replaceable>host</replaceable>, or both may be omitted. GTK+ looks
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first in the most specific directory, then in directories with
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fewer components.
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The components of GTK_PATH are separated by the ':' character on
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Linux and Unix, and the ';' character on Windows.
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</para>
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</formalpara>
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<formalpara>
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<title><envar>GTK_IM_MODULE</envar></title>
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<para>
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Specifies an IM module to use in preference to the one determined
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from the locale.
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</para>
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</formalpara>
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<formalpara id="im-module-file">
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<title><envar>GTK_IM_MODULE_FILE</envar></title>
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<para>
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Specifies the file listing the IM modules to load. This environment
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variable overrides the <literal>im_module_file</literal> specified in
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the RC files, which in turn overrides the default value
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<filename><replaceable>sysconfdir</replaceable>/gtk-2.0/gtk.immodules</filename>
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(<replaceable>sysconfdir</replaceable> is the sysconfdir specified when GTK+ was configured,
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usually <filename>/usr/local/etc</filename>.)
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</para>
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</formalpara>
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<formalpara>
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<title><envar>GTK2_RC_FILES</envar></title>
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<para>
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Specifies a list of RC files to parse instead of the default ones;
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see <link linkend="gtk-Resource-Files">Resource Files</link>.
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</para>
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</formalpara>
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<formalpara>
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<title><envar>GTK_EXE_PREFIX</envar></title>
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<para>
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If set, GTK+ uses <filename>$GTK_EXE_PREFIX/lib</filename> instead of
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the libdir configured when GTK+ was compiled.
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</para>
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</formalpara>
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<formalpara>
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<title><envar>GTK_DATA_PREFIX</envar></title>
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<para>
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If set, makes GTK+ use <filename>$GTK_DATA_PREFIX</filename>
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instead of the prefix configured when GTK+ was compiled.
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</para>
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</formalpara>
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<para>
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The following environment variables are used by GdkPixbuf, GDK or
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Pango, not by GTK+ itself, but we list them here for completeness
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nevertheless.
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</para>
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<formalpara>
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<title><envar>GDK_PIXBUF_MODULE_FILE</envar></title>
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<para>
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Specifies the file listing the GdkPixbuf loader modules to load.
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This environment variable overrides the default value
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<filename><replaceable>sysconfdir</replaceable>/gtk-2.0/gdk-pixbuf.loaders</filename>
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(<replaceable>sysconfdir</replaceable> is the sysconfdir specified when
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GTK+ was configured, usually <filename>/usr/local/etc</filename>.)
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</para>
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</formalpara>
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<formalpara id="GDK-Debug-Options">
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<title><envar>GDK_DEBUG</envar></title>
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<para>
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If GTK+ has been configured with <option>--enable-debug=yes</option>,
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this variable can be set to a list of debug options, which cause GDK
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to print out different types of debugging information.
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<variablelist>
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<varlistentry>
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<term>misc</term>
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<listitem><para>Miscellaneous information</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>events</term>
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<listitem><para>Show all events received by GDK</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>dnd</term>
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<listitem><para>Information about drag-and-drop</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>xim</term>
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<listitem><para>Information about XIM support</para></listitem>
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</varlistentry>
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</variablelist>
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The special value <literal>all</literal> can be used to turn on all debug options.
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</para>
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</formalpara>
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<formalpara>
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<title><envar>XDG_DATA_HOME</envar>, <envar>XDG_DATA_DIRS</envar></title>
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<para>
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GTK+ uses these environment variables to locate icon themes
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and MIME information. For more information, see
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<ulink url="http://freedesktop.org/Standards/icon-theme-spec">Icon Theme Specification</ulink>,
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the <ulink url="http://freedesktop.org/Standards/shared-mime-info-spec">Shared MIME-info Database</ulink>
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and the <ulink url="http://freedesktop.org/Standards/basedir-spec">Base Directory Specification</ulink>.
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</para>
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</formalpara>
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</refsect2>
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</refsect1>
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</refentry>
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