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|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<td valign="top">
<h2><span class="refentrytitle"><a name="gdk2-General.top_of_page"></a>General</span></h2>
<p>General</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gdk2-General.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_proto_type">
<col class="functions_proto_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-init" title="gdk_init ()">gdk_init</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-init-check" title="gdk_init_check ()">gdk_init_check</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-parse-args" title="gdk_parse_args ()">gdk_parse_args</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <span class="returnvalue">gchar</span> *
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-get-display-arg-name" title="gdk_get_display_arg_name ()">gdk_get_display_arg_name</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gchar</span> *
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-set-locale" title="gdk_set_locale ()">gdk_set_locale</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-set-sm-client-id" title="gdk_set_sm_client_id ()">gdk_set_sm_client_id</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-exit" title="gdk_exit ()">gdk_exit</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-notify-startup-complete" title="gdk_notify_startup_complete ()">gdk_notify_startup_complete</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-notify-startup-complete-with-id" title="gdk_notify_startup_complete_with_id ()">gdk_notify_startup_complete_with_id</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <span class="returnvalue">char</span> *
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-get-program-class" title="gdk_get_program_class ()">gdk_get_program_class</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-set-program-class" title="gdk_set_program_class ()">gdk_set_program_class</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gchar</span> *
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-get-display" title="gdk_get_display ()">gdk_get_display</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-flush" title="gdk_flush ()">gdk_flush</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gint</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-screen-width" title="gdk_screen_width ()">gdk_screen_width</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gint</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-screen-height" title="gdk_screen_height ()">gdk_screen_height</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gint</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-screen-width-mm" title="gdk_screen_width_mm ()">gdk_screen_width_mm</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gint</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-screen-height-mm" title="gdk_screen_height_mm ()">gdk_screen_height_mm</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="gdk2-General.html#GdkGrabStatus" title="enum GdkGrabStatus"><span class="returnvalue">GdkGrabStatus</span></a>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-pointer-grab" title="gdk_pointer_grab ()">gdk_pointer_grab</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-pointer-ungrab" title="gdk_pointer_ungrab ()">gdk_pointer_ungrab</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-pointer-is-grabbed" title="gdk_pointer_is_grabbed ()">gdk_pointer_is_grabbed</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-set-double-click-time" title="gdk_set_double_click_time ()">gdk_set_double_click_time</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="gdk2-General.html#GdkGrabStatus" title="enum GdkGrabStatus"><span class="returnvalue">GdkGrabStatus</span></a>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-keyboard-grab" title="gdk_keyboard_grab ()">gdk_keyboard_grab</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-keyboard-ungrab" title="gdk_keyboard_ungrab ()">gdk_keyboard_ungrab</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-beep" title="gdk_beep ()">gdk_beep</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-get-use-xshm" title="gdk_get_use_xshm ()">gdk_get_use_xshm</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-set-use-xshm" title="gdk_set_use_xshm ()">gdk_set_use_xshm</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-error-trap-push" title="gdk_error_trap_push ()">gdk_error_trap_push</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gint</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-General.html#gdk-error-trap-pop" title="gdk_error_trap_pop ()">gdk_error_trap_pop</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gdk2-General.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="other_proto_type">
<col class="other_proto_name">
</colgroup>
<tbody>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="gdk2-General.html#GdkGrabStatus" title="enum GdkGrabStatus">GdkGrabStatus</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gdk2-General.html#GDK-WINDOWING-X11:CAPS" title="GDK_WINDOWING_X11">GDK_WINDOWING_X11</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gdk2-General.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include <gdk/gdk.h>
</pre>
</div>
<div class="refsect1">
<a name="gdk2-General.description"></a><h2>Description</h2>
</div>
<div class="refsect1">
<a name="gdk2-General.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gdk-init"></a><h3>gdk_init ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gdk_init (<em class="parameter"><code><span class="type">gint</span> *argc</code></em>,
<em class="parameter"><code><span class="type">gchar</span> ***argv</code></em>);</pre>
<div class="refsect3">
<a name="gdk-init.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>argc</p></td>
<td class="parameter_description"><p>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for input and for returning results. Default is transfer full."><span class="acronym">inout</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>argv</p></td>
<td class="parameter_description"><p>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=argc][<acronym title="Parameter for input and for returning results. Default is transfer full."><span class="acronym">inout</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gdk-init-check"></a><h3>gdk_init_check ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gdk_init_check (<em class="parameter"><code><span class="type">gint</span> *argc</code></em>,
<em class="parameter"><code><span class="type">gchar</span> ***argv</code></em>);</pre>
<p>Initialize the library for use.</p>
<p>Arguments:
"argc" is the number of arguments.
"argv" is an array of strings.</p>
<p>Results:
"argc" and "argv" are modified to reflect any arguments
which were not handled. (Such arguments should either
be handled by the application or dismissed). If initialization
fails, returns FALSE, otherwise TRUE.</p>
<p>Side effects:
The library is initialized.</p>
<div class="refsect3">
<a name="id-1.2.2.7.3.8"></a><h4>Side effects:
The library is initialized.</h4>
</div>
<div class="refsect3">
<a name="gdk-init-check.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>argc</p></td>
<td class="parameter_description"><p>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for input and for returning results. Default is transfer full."><span class="acronym">inout</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>argv</p></td>
<td class="parameter_description"><p>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=argc][<acronym title="Parameter for input and for returning results. Default is transfer full."><span class="acronym">inout</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gdk-parse-args"></a><h3>gdk_parse_args ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gdk_parse_args (<em class="parameter"><code><span class="type">gint</span> *argc</code></em>,
<em class="parameter"><code><span class="type">gchar</span> ***argv</code></em>);</pre>
<p>Parse command line arguments, and store for future
use by calls to <a class="link" href="GdkDisplay.html#gdk-display-open" title="gdk_display_open ()"><code class="function">gdk_display_open()</code></a>.</p>
<p>Any arguments used by GDK are removed from the array and <em class="parameter"><code>argc</code></em>
and <em class="parameter"><code>argv</code></em>
are
updated accordingly.</p>
<p>You shouldn't call this function explicitely if you are using
<a href="https://developer.gnome.org/gtk4/gtk4-General.html#gtk-init"><code class="function">gtk_init()</code></a>, <a href="https://developer.gnome.org/gtk4/gtk4-General.html#gtk-init-check"><code class="function">gtk_init_check()</code></a>, <a class="link" href="gdk2-General.html#gdk-init" title="gdk_init ()"><code class="function">gdk_init()</code></a>, or <a class="link" href="gdk2-General.html#gdk-init-check" title="gdk_init_check ()"><code class="function">gdk_init_check()</code></a>.</p>
<div class="refsect3">
<a name="gdk-parse-args.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>argc</p></td>
<td class="parameter_description"><p>the number of command line arguments.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>argv</p></td>
<td class="parameter_description"><p>the array of command line arguments. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for input and for returning results. Default is transfer full."><span class="acronym">inout</span></acronym>][<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=argc]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-2-2.html#api-index-2.2">2.2</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gdk-get-display-arg-name"></a><h3>gdk_get_display_arg_name ()</h3>
<pre class="programlisting">const <span class="returnvalue">gchar</span> *
gdk_get_display_arg_name (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Gets the display name specified in the command line arguments passed
to <a class="link" href="gdk2-General.html#gdk-init" title="gdk_init ()"><code class="function">gdk_init()</code></a> or <a class="link" href="gdk2-General.html#gdk-parse-args" title="gdk_parse_args ()"><code class="function">gdk_parse_args()</code></a>, if any.</p>
<div class="refsect3">
<a name="gdk-get-display-arg-name.returns"></a><h4>Returns</h4>
<p> the display name, if specified explicitely, otherwise <code class="literal">NULL</code>
this string is owned by GTK+ and must not be modified or freed.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-2.html#api-index-2.2">2.2</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gdk-set-locale"></a><h3>gdk_set_locale ()</h3>
<pre class="programlisting"><span class="returnvalue">gchar</span> *
gdk_set_locale (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<div class="warning"><p><code class="literal">gdk_set_locale</code> is deprecated and should not be used in newly-written code.</p></div>
</div>
<hr>
<div class="refsect2">
<a name="gdk-set-sm-client-id"></a><h3>gdk_set_sm_client_id ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gdk_set_sm_client_id (<em class="parameter"><code>const <span class="type">gchar</span> *sm_client_id</code></em>);</pre>
<div class="warning">
<p><code class="literal">gdk_set_sm_client_id</code> has been deprecated since version 2.24 and should not be used in newly-written code.</p>
<p>Use <a class="link" href="gdk2-X-Window-System-Interaction.html#gdk-x11-set-sm-client-id" title="gdk_x11_set_sm_client_id ()"><code class="function">gdk_x11_set_sm_client_id()</code></a> instead</p>
</div>
<p>Sets the <code class="literal">SM_CLIENT_ID</code> property on the application's leader window so that
the window manager can save the application's state using the X11R6 ICCCM
session management protocol.</p>
<p>See the X Session Management Library documentation for more information on
session management and the Inter-Client Communication Conventions Manual
(ICCCM) for information on the <code class="literal">WM_CLIENT_LEADER</code> property.
(Both documents are part of the X Window System distribution.)</p>
<div class="refsect3">
<a name="gdk-set-sm-client-id.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>sm_client_id</p></td>
<td class="parameter_description"><p>the client id assigned by the session manager when the
connection was opened, or <code class="literal">NULL</code> to remove the property.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gdk-exit"></a><h3>gdk_exit ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gdk_exit (<em class="parameter"><code><span class="type">gint</span> error_code</code></em>);</pre>
<div class="warning"><p><code class="literal">gdk_exit</code> is deprecated and should not be used in newly-written code.</p></div>
</div>
<hr>
<div class="refsect2">
<a name="gdk-notify-startup-complete"></a><h3>gdk_notify_startup_complete ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gdk_notify_startup_complete (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Indicates to the GUI environment that the application has finished
loading. If the applications opens windows, this function is
normally called after opening the application's initial set of
windows.</p>
<p>GTK+ will call this function automatically after opening the first
<a href="https://developer.gnome.org/gtk4/GtkWindow.html#GtkWindow-struct"><span class="type">GtkWindow</span></a> unless <a href="https://developer.gnome.org/gtk4/GtkWindow.html#gtk-window-set-auto-startup-notification"><code class="function">gtk_window_set_auto_startup_notification()</code></a> is called
to disable that feature.</p>
<p class="since">Since: <a class="link" href="api-index-2-2.html#api-index-2.2">2.2</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gdk-notify-startup-complete-with-id"></a><h3>gdk_notify_startup_complete_with_id ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gdk_notify_startup_complete_with_id (<em class="parameter"><code>const <span class="type">gchar</span> *startup_id</code></em>);</pre>
<p>Indicates to the GUI environment that the application has finished
loading, using a given identifier.</p>
<p>GTK+ will call this function automatically for <a href="https://developer.gnome.org/gtk4/GtkWindow.html#GtkWindow-struct"><span class="type">GtkWindow</span></a> with custom
startup-notification identifier unless
<a href="https://developer.gnome.org/gtk4/GtkWindow.html#gtk-window-set-auto-startup-notification"><code class="function">gtk_window_set_auto_startup_notification()</code></a> is called to disable
that feature.</p>
<div class="refsect3">
<a name="gdk-notify-startup-complete-with-id.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>startup_id</p></td>
<td class="parameter_description"><p>a startup-notification identifier, for which notification
process should be completed</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-2-12.html#api-index-2.12">2.12</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gdk-get-program-class"></a><h3>gdk_get_program_class ()</h3>
<pre class="programlisting">const <span class="returnvalue">char</span> *
gdk_get_program_class (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="gdk-set-program-class"></a><h3>gdk_set_program_class ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gdk_set_program_class (<em class="parameter"><code>const <span class="type">char</span> *program_class</code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="gdk-get-display"></a><h3>gdk_get_display ()</h3>
<pre class="programlisting"><span class="returnvalue">gchar</span> *
gdk_get_display (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="gdk-flush"></a><h3>gdk_flush ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gdk_flush (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="gdk-screen-width"></a><h3>gdk_screen_width ()</h3>
<pre class="programlisting"><span class="returnvalue">gint</span>
gdk_screen_width (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Returns the width of the default screen in pixels.</p>
<div class="refsect3">
<a name="gdk-screen-width.returns"></a><h4>Returns</h4>
<p> the width of the default screen in pixels.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gdk-screen-height"></a><h3>gdk_screen_height ()</h3>
<pre class="programlisting"><span class="returnvalue">gint</span>
gdk_screen_height (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Returns the height of the default screen in pixels.</p>
<div class="refsect3">
<a name="gdk-screen-height.returns"></a><h4>Returns</h4>
<p> the height of the default screen in pixels.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gdk-screen-width-mm"></a><h3>gdk_screen_width_mm ()</h3>
<pre class="programlisting"><span class="returnvalue">gint</span>
gdk_screen_width_mm (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Returns the width of the default screen in millimeters.
Note that on many X servers this value will not be correct.</p>
<div class="refsect3">
<a name="gdk-screen-width-mm.returns"></a><h4>Returns</h4>
<p> the width of the default screen in millimeters,
though it is not always correct.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gdk-screen-height-mm"></a><h3>gdk_screen_height_mm ()</h3>
<pre class="programlisting"><span class="returnvalue">gint</span>
gdk_screen_height_mm (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Returns the height of the default screen in millimeters.
Note that on many X servers this value will not be correct.</p>
<div class="refsect3">
<a name="gdk-screen-height-mm.returns"></a><h4>Returns</h4>
<p> the height of the default screen in millimeters,
though it is not always correct.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gdk-pointer-grab"></a><h3>gdk_pointer_grab ()</h3>
<pre class="programlisting"><a class="link" href="gdk2-General.html#GdkGrabStatus" title="enum GdkGrabStatus"><span class="returnvalue">GdkGrabStatus</span></a>
gdk_pointer_grab (<em class="parameter"><code><a class="link" href="gdk2-Windows.html#GdkWindow"><span class="type">GdkWindow</span></a> *window</code></em>,
<em class="parameter"><code><span class="type">gboolean</span> owner_events</code></em>,
<em class="parameter"><code><a class="link" href="gdk2-Events.html#GdkEventMask" title="enum GdkEventMask"><span class="type">GdkEventMask</span></a> event_mask</code></em>,
<em class="parameter"><code><a class="link" href="gdk2-Windows.html#GdkWindow"><span class="type">GdkWindow</span></a> *confine_to</code></em>,
<em class="parameter"><code><a class="link" href="gdk2-Cursors.html#GdkCursor" title="GdkCursor"><span class="type">GdkCursor</span></a> *cursor</code></em>,
<em class="parameter"><code><span class="type">guint32</span> time_</code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="gdk-pointer-ungrab"></a><h3>gdk_pointer_ungrab ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gdk_pointer_ungrab (<em class="parameter"><code><span class="type">guint32</span> time_</code></em>);</pre>
<p>Ungrabs the pointer on the default display, if it is grabbed by this
application.</p>
<div class="refsect3">
<a name="gdk-pointer-ungrab.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>time_</p></td>
<td class="parameter_description"><p>a timestamp from a <a class="link" href="gdk2-Event-Structures.html#GdkEvent" title="union GdkEvent"><span class="type">GdkEvent</span></a>, or <a class="link" href="gdk2-Events.html#GDK-CURRENT-TIME:CAPS" title="GDK_CURRENT_TIME"><code class="literal">GDK_CURRENT_TIME</code></a> if no
timestamp is available.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gdk-pointer-is-grabbed"></a><h3>gdk_pointer_is_grabbed ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gdk_pointer_is_grabbed (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Returns <code class="literal">TRUE</code> if the pointer on the default display is currently
grabbed by this application.</p>
<p>Note that this does not take the inmplicit pointer grab on button
presses into account.</p>
<div class="refsect3">
<a name="gdk-pointer-is-grabbed.returns"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if the pointer is currently grabbed by this application.* </p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gdk-set-double-click-time"></a><h3>gdk_set_double_click_time ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gdk_set_double_click_time (<em class="parameter"><code><span class="type">guint</span> msec</code></em>);</pre>
<p>Set the double click time for the default display. See
<a class="link" href="GdkDisplay.html#gdk-display-set-double-click-time" title="gdk_display_set_double_click_time ()"><code class="function">gdk_display_set_double_click_time()</code></a>.
See also <a class="link" href="GdkDisplay.html#gdk-display-set-double-click-distance" title="gdk_display_set_double_click_distance ()"><code class="function">gdk_display_set_double_click_distance()</code></a>.
Applications should <span class="emphasis"><em>not</em></span> set this, it is a
global user-configured setting.</p>
<div class="refsect3">
<a name="gdk-set-double-click-time.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>msec</p></td>
<td class="parameter_description"><p>double click time in milliseconds (thousandths of a second)</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gdk-keyboard-grab"></a><h3>gdk_keyboard_grab ()</h3>
<pre class="programlisting"><a class="link" href="gdk2-General.html#GdkGrabStatus" title="enum GdkGrabStatus"><span class="returnvalue">GdkGrabStatus</span></a>
gdk_keyboard_grab (<em class="parameter"><code><a class="link" href="gdk2-Windows.html#GdkWindow"><span class="type">GdkWindow</span></a> *window</code></em>,
<em class="parameter"><code><span class="type">gboolean</span> owner_events</code></em>,
<em class="parameter"><code><span class="type">guint32</span> time_</code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="gdk-keyboard-ungrab"></a><h3>gdk_keyboard_ungrab ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gdk_keyboard_ungrab (<em class="parameter"><code><span class="type">guint32</span> time_</code></em>);</pre>
<p>Ungrabs the keyboard on the default display, if it is grabbed by this
application.</p>
<div class="refsect3">
<a name="gdk-keyboard-ungrab.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>time_</p></td>
<td class="parameter_description"><p>a timestamp from a <a class="link" href="gdk2-Event-Structures.html#GdkEvent" title="union GdkEvent"><span class="type">GdkEvent</span></a>, or <a class="link" href="gdk2-Events.html#GDK-CURRENT-TIME:CAPS" title="GDK_CURRENT_TIME"><code class="literal">GDK_CURRENT_TIME</code></a> if no
timestamp is available.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gdk-beep"></a><h3>gdk_beep ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gdk_beep (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Emits a short beep on the default display.</p>
</div>
<hr>
<div class="refsect2">
<a name="gdk-get-use-xshm"></a><h3>gdk_get_use_xshm ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gdk_get_use_xshm (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<div class="warning"><p><code class="literal">gdk_get_use_xshm</code> is deprecated and should not be used in newly-written code.</p></div>
</div>
<hr>
<div class="refsect2">
<a name="gdk-set-use-xshm"></a><h3>gdk_set_use_xshm ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gdk_set_use_xshm (<em class="parameter"><code><span class="type">gboolean</span> use_xshm</code></em>);</pre>
<div class="warning"><p><code class="literal">gdk_set_use_xshm</code> is deprecated and should not be used in newly-written code.</p></div>
</div>
<hr>
<div class="refsect2">
<a name="gdk-error-trap-push"></a><h3>gdk_error_trap_push ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gdk_error_trap_push (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="gdk-error-trap-pop"></a><h3>gdk_error_trap_pop ()</h3>
<pre class="programlisting"><span class="returnvalue">gint</span>
gdk_error_trap_pop (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
</div>
</div>
<div class="refsect1">
<a name="gdk2-General.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GdkGrabStatus"></a><h3>enum GdkGrabStatus</h3>
<div class="refsect3">
<a name="GdkGrabStatus.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="GDK-GRAB-SUCCESS:CAPS"></a>GDK_GRAB_SUCCESS</p></td>
<td> </td>
<td> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GDK-GRAB-ALREADY-GRABBED:CAPS"></a>GDK_GRAB_ALREADY_GRABBED</p></td>
<td> </td>
<td> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GDK-GRAB-INVALID-TIME:CAPS"></a>GDK_GRAB_INVALID_TIME</p></td>
<td> </td>
<td> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GDK-GRAB-NOT-VIEWABLE:CAPS"></a>GDK_GRAB_NOT_VIEWABLE</p></td>
<td> </td>
<td> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GDK-GRAB-FROZEN:CAPS"></a>GDK_GRAB_FROZEN</p></td>
<td> </td>
<td> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GDK-WINDOWING-X11:CAPS"></a><h3>GDK_WINDOWING_X11</h3>
<pre class="programlisting">#define GDK_WINDOWING_X11
</pre>
</div>
</div>
</div>
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