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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"><title>GdkDisplay</title><meta name="generator" content="DocBook XSL Stylesheets V1.73.2"><link rel="start" href="index.html" title="GDK Reference Manual"><link rel="up" href="reference.html" title="API Reference"><link rel="prev" href="multihead.html" title="Multi-head Support Overview"><link rel="next" href="GdkDisplayManager.html" title="GdkDisplayManager"><meta name="generator" content="GTK-Doc V1.9 (XML mode)"><link rel="stylesheet" href="style.css" type="text/css"><link rel="reference" href="reference.html" title="API Reference"><link rel="index" href="ix01.html" title="Index"><link rel="index" href="ix02.html" title="Index of deprecated symbols"><link rel="index" href="ix03.html" title="Index of new symbols in 2.2"><link rel="index" href="ix04.html" title="Index of new symbols in 2.4"><link rel="index" href="ix05.html" title="Index of new symbols in 2.6"><link rel="index" href="ix06.html" title="Index of new symbols in 2.8"><link rel="index" href="ix07.html" title="Index of new symbols in 2.10"><link rel="index" href="ix08.html" title="Index of new symbols in 2.12"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"><td><a accesskey="p" href="multihead.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td><td><a accesskey="u" href="reference.html"><img src="up.png" 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">GDK Reference Manual</th><td><a accesskey="n" href="GdkDisplayManager.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="#id3051230" class="shortcut">Top</a>  |  <a href="#id3052895" class="shortcut">Description</a>  |  <a href="#id3052842" class="shortcut">Object Hierarchy</a>  |  <a href="#id3052868" class="shortcut">Signals</a></nobr></td></tr></table><div class="refentry" lang="en"><a name="GdkDisplay"></a><div class="titlepage"></div><div class="refnamediv"><table width="100%"><tr><td valign="top"><h2><a name="id3051230"></a><span class="refentrytitle">GdkDisplay</span></h2><p>GdkDisplay — Controls the keyboard/mouse pointer grabs and a set of <span class="type">GdkScreen</span>s</p></td><td valign="top" align="right"></td></tr></table></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">#include <gdk/gdk.h> <a class="link" href="GdkDisplay.html#GdkDisplay-struct">GdkDisplay</a>;<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a>* <a class="link" href="GdkDisplay.html#gdk-display-open">gdk_display_open</a> (const <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> *display_name);<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a>* <a class="link" href="GdkDisplay.html#gdk-display-get-default">gdk_display_get_default</a> (void);const <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a>* <a class="link" href="GdkDisplay.html#gdk-display-get-name">gdk_display_get_name</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> <a class="link" href="GdkDisplay.html#gdk-display-get-n-screens">gdk_display_get_n_screens</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);<a class="link" href="GdkScreen.html" title="GdkScreen">GdkScreen</a>* <a class="link" href="GdkDisplay.html#gdk-display-get-screen">gdk_display_get_screen</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> screen_num);<a class="link" href="GdkScreen.html" title="GdkScreen">GdkScreen</a>* <a class="link" href="GdkDisplay.html#gdk-display-get-default-screen">gdk_display_get_default_screen</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);void <a class="link" href="GdkDisplay.html#gdk-display-pointer-ungrab">gdk_display_pointer_ungrab</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint32">guint32</a> time_);void <a class="link" href="GdkDisplay.html#gdk-display-keyboard-ungrab">gdk_display_keyboard_ungrab</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint32">guint32</a> time_);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="GdkDisplay.html#gdk-display-pointer-is-grabbed">gdk_display_pointer_is_grabbed</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);void <a class="link" href="GdkDisplay.html#gdk-display-beep">gdk_display_beep</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);void <a class="link" href="GdkDisplay.html#gdk-display-sync">gdk_display_sync</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);void <a class="link" href="GdkDisplay.html#gdk-display-flush">gdk_display_flush</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);void <a class="link" href="GdkDisplay.html#gdk-display-close">gdk_display_close</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);<ahref="/usr/share/gtk-doc/html/glib/glib-Doubly-Linked-Lists.html#GList">GList</a>* <a class="link" href="GdkDisplay.html#gdk-display-list-devices">gdk_display_list_devices</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);<a class="link" href="gdk-Event-Structures.html#GdkEvent">GdkEvent</a>* <a class="link" href="GdkDisplay.html#gdk-display-get-event">gdk_display_get_event</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);<a class="link" href="gdk-Event-Structures.html#GdkEvent">GdkEvent</a>* <a class="link" href="GdkDisplay.html#gdk-display-peek-event">gdk_display_peek_event</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);void <a class="link" href="GdkDisplay.html#gdk-display-put-event">gdk_display_put_event</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display, <a class="link" href="gdk-Event-Structures.html#GdkEvent">GdkEvent</a> *event);void <a class="link" href="GdkDisplay.html#gdk-display-add-client-message-filter">gdk_display_add_client_message_filter</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display, <a class="link" href="gdk-Properties-and-Atoms.html#GdkAtom">GdkAtom</a> message_type, <a class="link" href="gdk-Windows.html#GdkFilterFunc">GdkFilterFunc</a> func, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer">gpointer</a> data);void <a class="link" href="GdkDisplay.html#gdk-display-set-double-click-time">gdk_display_set_double_click_time</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint">guint</a> msec);void <a class="link" href="GdkDisplay.html#gdk-display-set-double-click-distance">gdk_display_set_double_click_distance</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint">guint</a> distance);void <a class="link" href="GdkDisplay.html#gdk-display-get-pointer">gdk_display_get_pointer</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display, <a class="link" href="GdkScreen.html" title="GdkScreen">GdkScreen</a> **screen, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *x, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *y, <a class="link" href="gdk-Windows.html#GdkModifierType">GdkModifierType</a> *mask);<a class="link" href="gdk-Windows.html#GdkWindow">GdkWindow</a>* <a class="link" href="GdkDisplay.html#gdk-display-get-window-at-pointer">gdk_display_get_window_at_pointer</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *win_x, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *win_y); <a class="link" href="GdkDisplay.html#GdkDisplayPointerHooks">GdkDisplayPointerHooks</a>;<a class="link" href="GdkDisplay.html#GdkDisplayPointerHooks">GdkDisplayPointerHooks</a>* <a class="link" href="GdkDisplay.html#gdk-display-set-pointer-hooks">gdk_display_set_pointer_hooks</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display, const <a class="link" href="GdkDisplay.html#GdkDisplayPointerHooks">GdkDisplayPointerHooks</a> *new_hooks);void <a class="link" href="GdkDisplay.html#gdk-display-warp-pointer">gdk_display_warp_pointer</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display, <a class="link" href="GdkScreen.html" title="GdkScreen">GdkScreen</a> *screen, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> x, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> y);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="GdkDisplay.html#gdk-display-supports-cursor-color">gdk_display_supports_cursor_color</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="GdkDisplay.html#gdk-display-supports-cursor-alpha">gdk_display_supports_cursor_alpha</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint">guint</a> <a class="link" href="GdkDisplay.html#gdk-display-get-default-cursor-size">gdk_display_get_default_cursor_size</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);void <a class="link" href="GdkDisplay.html#gdk-display-get-maximal-cursor-size">gdk_display_get_maximal_cursor_size</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint">guint</a> *width, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint">guint</a> *height);<a class="link" href="gdk-Windows.html#GdkWindow">GdkWindow</a>* <a class="link" href="GdkDisplay.html#gdk-display-get-default-group">gdk_display_get_default_group</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="GdkDisplay.html#gdk-display-supports-selection-notification">gdk_display_supports_selection_notification</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="GdkDisplay.html#gdk-display-request-selection-notification">gdk_display_request_selection_notification</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display, <a class="link" href="gdk-Properties-and-Atoms.html#GdkAtom">GdkAtom</a> selection);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="GdkDisplay.html#gdk-display-supports-clipboard-persistence">gdk_display_supports_clipboard_persistence</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);void <a class="link" href="GdkDisplay.html#gdk-display-store-clipboard">gdk_display_store_clipboard</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display, <a class="link" href="gdk-Windows.html#GdkWindow">GdkWindow</a> *clipboard_window, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint32">guint32</a> time_, <a class="link" href="gdk-Properties-and-Atoms.html#GdkAtom">GdkAtom</a> *targets, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> n_targets);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="GdkDisplay.html#gdk-display-supports-shapes">gdk_display_supports_shapes</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="GdkDisplay.html#gdk-display-supports-input-shapes">gdk_display_supports_input_shapes</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="GdkDisplay.html#gdk-display-supports-composite">gdk_display_supports_composite</a> (<a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a> *display);</pre></div><div class="refsect1" lang="en"><a name="id3052842"></a><h2>Object Hierarchy</h2><pre class="synopsis"> <ahref="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject">GObject</a> +----GdkDisplay</pre></div><div class="refsect1" lang="en"><a name="id3052868"></a><h2>Signals</h2><pre class="synopsis"> "<a class="link" href="GdkDisplay.html#GdkDisplay-closed">closed</a>" : Run Last</pre></div><div class="refsect1" lang="en"><a name="id3052895"></a><h2>Description</h2><p><a class="link" href="GdkDisplay.html" title="GdkDisplay"><span class="type">GdkDisplay</span></a> objects purpose are two fold:</p><div class="itemizedlist"><ul type="disc"><li><p>To grab/ungrab keyboard focus and mouse pointer</p></li><li><p>To manage and provide information about the <a class="link" href="GdkScreen.html" title="GdkScreen"><span class="type">GdkScreen</span></a>(s) available for this <a class="link" href="GdkDisplay.html" title="GdkDisplay"><span class="type">GdkDisplay</span></a> </p></li></ul></div><p></p><p> <a class="link" href="GdkDisplay.html" title="GdkDisplay"><span class="type">GdkDisplay</span></a> objects are the GDK representation of the X Display which can be described as <span class="emphasis"><em>a workstation consisting of a keyboard a pointing device (such as a mouse) and one or more screens</em></span>. It is used to open and keep track of various <a class="link" href="GdkScreen.html" title="GdkScreen"><span class="type">GdkScreen</span></a> objects currently instanciated by the application. It is also used to grab and release the keyboard and the mouse pointer.</p></div><div class="refsect1" lang="en"><a name="id3052975"></a><h2>Details</h2><div class="refsect2" lang="en"><a name="id3052986"></a><h3><a name="GdkDisplay-struct"></a>GdkDisplay</h3><a class="indexterm" name="id3052998"></a><pre class="programlisting">typedef struct _GdkDisplay GdkDisplay;</pre><p>The <span class="structname">GdkDisplay</span> struct is the GDK representationof an X display. All its fields are private and should not be accessed directly. </p><p class="since">Since 2.2</p></div><hr><div class="refsect2" lang="en"><a name="id3053026"></a><h3><a name="gdk-display-open"></a>gdk_display_open ()</h3><a class="indexterm" name="id3053040"></a><pre class="programlisting"><a class="link" href="GdkDisplay.html" title="GdkDisplay">GdkDisplay</a>* gdk_display_open (const <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> *display_name);</pre><p>Opens a display.</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>display_name</code></em> :</span></p></td><td> the name of the display to open</td></tr><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td><td> a <a class="link" href="GdkDisplay.html" title="GdkDisplay"><span class="type">GdkDisplay</span></a>, or <ahref="/usr/share/gtk-doc/html/liboil/liboil-liboiljunk.html#NULL:CAPS"><code class="literal">NULL</code></a> if the display could not be opened.</td></tr></tbody></table></div><p class="since">Since 2.2</p></div><hr><div class="refsect2" lang="en"><a name="id3053127"></a><h3>⌨️ 快捷键说明
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