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width="24" height="24" border="0" alt="Up"></a></td><td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td><th width="100%" align="center">GTK+ Reference Manual</th><td><a accesskey="n" href="GtkStatusIcon.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td></tr><tr><td colspan="5" class="shortcuts"><nobr><a href="#id3476868" class="shortcut">Top</a>  |  <a href="#id3477306" class="shortcut">Description</a>  |  <a href="#id3477100" class="shortcut">Object Hierarchy</a>  |  <a href="#id3477169" class="shortcut">Implemented Interfaces</a>  |  <a href="#id3477199" class="shortcut">Properties</a>  |  <a href="#id3477234" class="shortcut">Style Properties</a>  |  <a href="#id3477268" class="shortcut">Signals</a></nobr></td></tr></table><div class="refentry" lang="en"><a name="GtkStatusbar"></a><div class="titlepage"></div><div class="refnamediv"><table width="100%"><tr><td valign="top"><h2><a name="id3476868"></a><span class="refentrytitle">GtkStatusbar</span></h2><p>GtkStatusbar — Report messages of minor importance to the user</p></td><td valign="top" align="right"><img src="statusbar.png"></td></tr></table></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">#include <gtk/gtk.h> <a class="link" href="GtkStatusbar.html#GtkStatusbar-struct">GtkStatusbar</a>;<a class="link" href="GtkWidget.html" title="GtkWidget">GtkWidget</a>* <a class="link" href="GtkStatusbar.html#gtk-statusbar-new">gtk_statusbar_new</a> (void);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint">guint</a> <a class="link" href="GtkStatusbar.html#gtk-statusbar-get-context-id">gtk_statusbar_get_context_id</a> (<a class="link" href="GtkStatusbar.html" title="GtkStatusbar">GtkStatusbar</a> *statusbar, const <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> *context_description);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint">guint</a> <a class="link" href="GtkStatusbar.html#gtk-statusbar-push">gtk_statusbar_push</a> (<a class="link" href="GtkStatusbar.html" title="GtkStatusbar">GtkStatusbar</a> *statusbar, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint">guint</a> context_id, const <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> *text);void <a class="link" href="GtkStatusbar.html#gtk-statusbar-pop">gtk_statusbar_pop</a> (<a class="link" href="GtkStatusbar.html" title="GtkStatusbar">GtkStatusbar</a> *statusbar, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint">guint</a> context_id);void <a class="link" href="GtkStatusbar.html#gtk-statusbar-remove">gtk_statusbar_remove</a> (<a class="link" href="GtkStatusbar.html" title="GtkStatusbar">GtkStatusbar</a> *statusbar, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint">guint</a> context_id, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint">guint</a> message_id);void <a class="link" href="GtkStatusbar.html#gtk-statusbar-set-has-resize-grip">gtk_statusbar_set_has_resize_grip</a> (<a class="link" href="GtkStatusbar.html" title="GtkStatusbar">GtkStatusbar</a> *statusbar, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> setting);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="GtkStatusbar.html#gtk-statusbar-get-has-resize-grip">gtk_statusbar_get_has_resize_grip</a> (<a class="link" href="GtkStatusbar.html" title="GtkStatusbar">GtkStatusbar</a> *statusbar);</pre></div><div class="refsect1" lang="en"><a name="id3477100"></a><h2>Object Hierarchy</h2><pre class="synopsis"> <ahref="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject">GObject</a> +----<ahref="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a> +----<a class="link" href="GtkObject.html" title="GtkObject">GtkObject</a> +----<a class="link" href="GtkWidget.html" title="GtkWidget">GtkWidget</a> +----<a class="link" href="GtkContainer.html" title="GtkContainer">GtkContainer</a> +----<a class="link" href="GtkBox.html" title="GtkBox">GtkBox</a> +----<a class="link" href="GtkHBox.html" title="GtkHBox">GtkHBox</a> +----GtkStatusbar</pre></div><div class="refsect1" lang="en"><a name="id3477169"></a><h2>Implemented Interfaces</h2><p>GtkStatusbar implements AtkImplementorIface and <a class="link" href="gtk-gtkbuildable.html#GtkBuildable">GtkBuildable</a>.</p></div><div class="refsect1" lang="en"><a name="id3477199"></a><h2>Properties</h2><pre class="synopsis"> "<a class="link" href="GtkStatusbar.html#GtkStatusbar--has-resize-grip">has-resize-grip</a>" <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> : Read / Write</pre></div><div class="refsect1" lang="en"><a name="id3477234"></a><h2>Style Properties</h2><pre class="synopsis"> "<a class="link" href="GtkStatusbar.html#GtkStatusbar--shadow-type">shadow-type</a>" <a class="link" href="gtk-Standard-Enumerations.html#GtkShadowType">GtkShadowType</a> : Read</pre></div><div class="refsect1" lang="en"><a name="id3477268"></a><h2>Signals</h2><pre class="synopsis"> "<a class="link" href="GtkStatusbar.html#GtkStatusbar-text-popped">text-popped</a>" : Run Last "<a class="link" href="GtkStatusbar.html#GtkStatusbar-text-pushed">text-pushed</a>" : Run Last</pre></div><div class="refsect1" lang="en"><a name="id3477306"></a><h2>Description</h2><p>A <a class="link" href="GtkStatusbar.html" title="GtkStatusbar"><span class="type">GtkStatusbar</span></a> is usually placed along the bottom of an application's main<a class="link" href="GtkWindow.html" title="GtkWindow"><span class="type">GtkWindow</span></a>. It may provide a regular commentary of the application's status(as is usually the case in a web browser, for example), or may be used tosimply output a message when the status changes, (when an upload is completein an FTP client, for example). It may also have a resize grip (a triangular area in the lower right corner) which can be clicked on to resize the window containing the statusbar.</p><p>Status bars in GTK+ maintain a stack of messages. The message atthe top of the each bar's stack is the one that will currently be displayed.</p><p>Any messages added to a statusbar's stack must specify a <span class="emphasis"><em>context id</em></span> that is used to uniquely identify the source of a message. This context id can be generated by <a class="link" href="GtkStatusbar.html#gtk-statusbar-get-context-id"><code class="function">gtk_statusbar_get_context_id()</code></a>, given a message and the statusbar that it will be added to. Note that messages are stored in a stack, and when choosing which message to display, the stack structure is adhered to, regardless of the context identifier of a message.</p><p>One could say that a statusbar maintains one stack of messages for displaypurposes, but allows multiple message producers to maintain sub-stacks ofthe messages they produced (via context ids).</p><p>Status bars are created using <a class="link" href="GtkStatusbar.html#gtk-statusbar-new"><code class="function">gtk_statusbar_new()</code></a>.</p><p>Messages are added to the bar's stack with <a class="link" href="GtkStatusbar.html#gtk-statusbar-push"><code class="function">gtk_statusbar_push()</code></a>.</p><p>The message at the top of the stack can be removed using <a class="link" href="GtkStatusbar.html#gtk-statusbar-pop"><code class="function">gtk_statusbar_pop()</code></a>. A message can be removed from anywhere in the stack if its message_id was recorded at the time it was added. This is done using <a class="link" href="GtkStatusbar.html#gtk-statusbar-remove"><code class="function">gtk_statusbar_remove()</code></a>.</p></div><div class="refsect1" lang="en"><a name="id3477438"></a><h2>Details</h2><div class="refsect2" lang="en"><a name="id3477448"></a><h3><a name="GtkStatusbar-struct"></a>GtkStatusbar</h3><a class="indexterm" name="id3477461"></a><pre class="programlisting">typedef struct _GtkStatusbar GtkStatusbar;</pre><p>Contains private data that should be modified with the functions described below.</p></div><hr><div class="refsect2" lang="en"><a name="id3477478"></a><h3><a name="gtk-statusbar-new"></a>gtk_statusbar_new ()</h3><a class="indexterm" name="id3477491"></a><pre class="programlisting"><a class="link" href="GtkWidget.html" title="GtkWidget">GtkWidget</a>* gtk_statusbar_new (void);</pre><p>Creates a new <a class="link" href="GtkStatusbar.html" title="GtkStatusbar"><span class="type">GtkStatusbar</span></a> ready for messages.</p><p></p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td><td> the new <a class="link" href="GtkStatusbar.html" title="GtkStatusbar"><span class="type">GtkStatusbar</span></a></td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3477547"></a><h3><a name="gtk-statusbar-get-context-id"></a>gtk_statusbar_get_context_id ()</h3><a class="indexterm" name="id3477560"></a><pre class="programlisting"><ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint">guint</a> gtk_statusbar_get_context_id (<a class="link" href="GtkStatusbar.html" title="GtkStatusbar">GtkStatusbar</a> *statusbar, const <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> *context_description);</pre><p>Returns a new context identifier, given a description of the actual context. Note that the description is <span class="emphasis"><em>not</em></span> shown in the UI.</p><p></p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><p><span class="term"><em class="parameter"><code>statusbar</code></em> :</span></p></td><td> a <a class="link" href="GtkStatusbar.html" title="GtkStatusbar"><span class="type">GtkStatusbar</span></a></td></tr><tr><td><p><span class="term"><em class="parameter"><code>context_description</code></em> :</span></p></td><td> textual description of what context the new message is being used in</td></tr><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td><td> an integer id</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3477658"></a><h3><a name="gtk-statusbar-push"></a>gtk_statusbar_push ()</h3><a class="indexterm" name="id3477672"></a><pre class="programlisting"><ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint">guint</a> gtk_statusbar_push (<a class="link" href="GtkStatusbar.html" title="GtkStatusbar">GtkStatusbar</a> *statusbar,⌨️ 快捷键说明
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