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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="PlugSocket.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="#id4391439" class="shortcut">Top</a>  |  <a href="#id4391951" class="shortcut">Description</a>  |  <a href="#id4391830" class="shortcut">Object Hierarchy</a>  |  <a href="#id4391870" class="shortcut">Signals</a></nobr></td></tr></table><div class="refentry" lang="en"><a name="GtkIMContext"></a><div class="titlepage"></div><div class="refnamediv"><table width="100%"><tr><td valign="top"><h2><a name="id4391439"></a><span class="refentrytitle">GtkIMContext</span></h2><p>GtkIMContext — Base class for input method contexts</p></td><td valign="top" align="right"></td></tr></table></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">#include <gtk/gtk.h> <a class="link" href="GtkIMContext.html#GtkIMContext-struct">GtkIMContext</a>;void <a class="link" href="GtkIMContext.html#gtk-im-context-set-client-window">gtk_im_context_set_client_window</a> (<a class="link" href="GtkIMContext.html" title="GtkIMContext">GtkIMContext</a> *context, <ahref="/usr/share/gtk-doc/html/gdk/gdk-Windows.html#GdkWindow">GdkWindow</a> *window);void <a class="link" href="GtkIMContext.html#gtk-im-context-get-preedit-string">gtk_im_context_get_preedit_string</a> (<a class="link" href="GtkIMContext.html" title="GtkIMContext">GtkIMContext</a> *context, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> **str, <ahref="/usr/share/gtk-doc/html/pango/pango-Text-Attributes.html#PangoAttrList">PangoAttrList</a> **attrs, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *cursor_pos);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="GtkIMContext.html#gtk-im-context-filter-keypress">gtk_im_context_filter_keypress</a> (<a class="link" href="GtkIMContext.html" title="GtkIMContext">GtkIMContext</a> *context, <ahref="/usr/share/gtk-doc/html/gdk/gdk-Event-Structures.html#GdkEventKey">GdkEventKey</a> *event);void <a class="link" href="GtkIMContext.html#gtk-im-context-focus-in">gtk_im_context_focus_in</a> (<a class="link" href="GtkIMContext.html" title="GtkIMContext">GtkIMContext</a> *context);void <a class="link" href="GtkIMContext.html#gtk-im-context-focus-out">gtk_im_context_focus_out</a> (<a class="link" href="GtkIMContext.html" title="GtkIMContext">GtkIMContext</a> *context);void <a class="link" href="GtkIMContext.html#gtk-im-context-reset">gtk_im_context_reset</a> (<a class="link" href="GtkIMContext.html" title="GtkIMContext">GtkIMContext</a> *context);void <a class="link" href="GtkIMContext.html#gtk-im-context-set-cursor-location">gtk_im_context_set_cursor_location</a> (<a class="link" href="GtkIMContext.html" title="GtkIMContext">GtkIMContext</a> *context, <ahref="/usr/share/gtk-doc/html/gdk/gdk-Points-Rectangles-and-Regions.html#GdkRectangle">GdkRectangle</a> *area);void <a class="link" href="GtkIMContext.html#gtk-im-context-set-use-preedit">gtk_im_context_set_use_preedit</a> (<a class="link" href="GtkIMContext.html" title="GtkIMContext">GtkIMContext</a> *context, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> use_preedit);void <a class="link" href="GtkIMContext.html#gtk-im-context-set-surrounding">gtk_im_context_set_surrounding</a> (<a class="link" href="GtkIMContext.html" title="GtkIMContext">GtkIMContext</a> *context, const <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> *text, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> len, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> cursor_index);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="GtkIMContext.html#gtk-im-context-get-surrounding">gtk_im_context_get_surrounding</a> (<a class="link" href="GtkIMContext.html" title="GtkIMContext">GtkIMContext</a> *context, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> **text, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *cursor_index);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="GtkIMContext.html#gtk-im-context-delete-surrounding">gtk_im_context_delete_surrounding</a> (<a class="link" href="GtkIMContext.html" title="GtkIMContext">GtkIMContext</a> *context, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> offset, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> n_chars);</pre></div><div class="refsect1" lang="en"><a name="id4391830"></a><h2>Object Hierarchy</h2><pre class="synopsis"> <ahref="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject">GObject</a> +----GtkIMContext +----<a class="link" href="GtkIMContextSimple.html" title="GtkIMContextSimple">GtkIMContextSimple</a> +----<a class="link" href="GtkIMMulticontext.html" title="GtkIMMulticontext">GtkIMMulticontext</a></pre></div><div class="refsect1" lang="en"><a name="id4391870"></a><h2>Signals</h2><pre class="synopsis"> "<a class="link" href="GtkIMContext.html#GtkIMContext-commit">commit</a>" : Run Last "<a class="link" href="GtkIMContext.html#GtkIMContext-delete-surrounding">delete-surrounding</a>" : Run Last "<a class="link" href="GtkIMContext.html#GtkIMContext-preedit-changed">preedit-changed</a>" : Run Last "<a class="link" href="GtkIMContext.html#GtkIMContext-preedit-end">preedit-end</a>" : Run Last "<a class="link" href="GtkIMContext.html#GtkIMContext-preedit-start">preedit-start</a>" : Run Last "<a class="link" href="GtkIMContext.html#GtkIMContext-retrieve-surrounding">retrieve-surrounding</a>" : Run Last</pre></div><div class="refsect1" lang="en"><a name="id4391951"></a><h2>Description</h2><p></p></div><div class="refsect1" lang="en"><a name="id4391965"></a><h2>Details</h2><div class="refsect2" lang="en"><a name="id4391976"></a><h3><a name="GtkIMContext-struct"></a>GtkIMContext</h3><a class="indexterm" name="id4391988"></a><pre class="programlisting">typedef struct _GtkIMContext GtkIMContext;</pre><p></p></div><hr><div class="refsect2" lang="en"><a name="id4392004"></a><h3><a name="gtk-im-context-set-client-window"></a>gtk_im_context_set_client_window ()</h3><a class="indexterm" name="id4392017"></a><pre class="programlisting">void gtk_im_context_set_client_window (<a class="link" href="GtkIMContext.html" title="GtkIMContext">GtkIMContext</a> *context, <ahref="/usr/share/gtk-doc/html/gdk/gdk-Windows.html#GdkWindow">GdkWindow</a> *window);</pre><p>Set the client window for the input context; this is the<ahref="/usr/share/gtk-doc/html/gdk/gdk-Windows.html#GdkWindow"><span class="type">GdkWindow</span></a> in which the input appears. This window isused in order to correctly position status windows, and mayalso be used for purposes internal to the input method.</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>context</code></em> :</span></p></td><td> a <a class="link" href="GtkIMContext.html" title="GtkIMContext"><span class="type">GtkIMContext</span></a></td></tr><tr><td><p><span class="term"><em class="parameter"><code>window</code></em> :</span></p></td><td> the client window. This may be <ahref="/usr/share/gtk-doc/html/liboil/liboil-liboiljunk.html#NULL:CAPS"><code class="literal">NULL</code></a> to indicate that the previous client window no longer exists.</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id4392120"></a><h3><a name="gtk-im-context-get-preedit-string"></a>gtk_im_context_get_preedit_string ()</h3><a class="indexterm" name="id4392135"></a><pre class="programlisting">void gtk_im_context_get_preedit_string (<a class="link" href="GtkIMContext.html" title="GtkIMContext">GtkIMContext</a> *context, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> **str, <ahref="/usr/share/gtk-doc/html/pango/pango-Text-Attributes.html#PangoAttrList">PangoAttrList</a> **attrs, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *cursor_pos);</pre><p>Retrieve the current preedit string for the input context,and a list of attributes to apply to the string.This string should be displayed inserted at the insertionpoint.</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>context</code></em> :</span></p></td><td> a <a class="link" href="GtkIMContext.html" title="GtkIMContext"><span class="type">GtkIMContext</span></a></td></tr><tr><td><p><span class="term"><em class="parameter"><code>str</code></em> :</span></p></td><td> location to store the retrieved string. The string retrieved must be freed with <ahref="/usr/share/gtk-doc/html/glib/glib-Memory-Allocation.html#g-free"><code class="function">g_free()</code></a>.</td></tr><tr><td><p><span class="term"><em class="parameter"><code>attrs</code></em> :</span></p></td><td> location to store the retrieved attribute list. When you are done with this list, you must unreference it with <ahref="/usr/share/gtk-doc/html/pango/pango-Text-Attributes.html#pango-attr-list-unref"><code class="function">pango_attr_list_unref()</code></a>.</td></tr><tr><td><p><span class="term"><em class="parameter"><code>cursor_pos</code></em> :</span></p></td>⌨️ 快捷键说明
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