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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>General</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="reference.html" title="API Reference"><link rel="next" href="multihead.html" title="Multi-head Support Overview"><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 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class="shortcuts"><nobr><a href="#id3035814" class="shortcut">Top</a>  |  <a href="#id3045335" class="shortcut">Description</a></nobr></td></tr></table><div class="refentry" lang="en"><a name="gdk-General"></a><div class="titlepage"></div><div class="refnamediv"><table width="100%"><tr><td valign="top"><h2><a name="id3035814"></a><span class="refentrytitle">General</span></h2><p>General — Library initialization and miscellaneous functions</p></td><td valign="top" align="right"></td></tr></table></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">#include <gdk/gdk.h>void <a class="link" href="gdk-General.html#gdk-init">gdk_init</a> (<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *argc, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> ***argv);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="gdk-General.html#gdk-init-check">gdk_init_check</a> (<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *argc, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> ***argv);void <a class="link" href="gdk-General.html#gdk-parse-args">gdk_parse_args</a> (<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *argc, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> ***argv);const <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a>* <a class="link" href="gdk-General.html#gdk-get-display-arg-name">gdk_get_display_arg_name</a> (void);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a>* <a class="link" href="gdk-General.html#gdk-set-locale">gdk_set_locale</a> (void);void <a class="link" href="gdk-General.html#gdk-set-sm-client-id">gdk_set_sm_client_id</a> (const <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> *sm_client_id);void <a class="link" href="gdk-General.html#gdk-exit">gdk_exit</a> (<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> error_code);void <a class="link" href="gdk-General.html#gdk-notify-startup-complete">gdk_notify_startup_complete</a> (void);void <a class="link" href="gdk-General.html#gdk-notify-startup-complete-with-id">gdk_notify_startup_complete_with_id</a> (const <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> *startup_id);const char* <a class="link" href="gdk-General.html#gdk-get-program-class">gdk_get_program_class</a> (void);void <a class="link" href="gdk-General.html#gdk-set-program-class">gdk_set_program_class</a> (const char *program_class);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a>* <a class="link" href="gdk-General.html#gdk-get-display">gdk_get_display</a> (void);void <a class="link" href="gdk-General.html#gdk-flush">gdk_flush</a> (void);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> <a class="link" href="gdk-General.html#gdk-screen-width">gdk_screen_width</a> (void);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> <a class="link" href="gdk-General.html#gdk-screen-height">gdk_screen_height</a> (void);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> <a class="link" href="gdk-General.html#gdk-screen-width-mm">gdk_screen_width_mm</a> (void);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> <a class="link" href="gdk-General.html#gdk-screen-height-mm">gdk_screen_height_mm</a> (void);<a class="link" href="gdk-General.html#GdkGrabStatus">GdkGrabStatus</a> <a class="link" href="gdk-General.html#gdk-pointer-grab">gdk_pointer_grab</a> (<a class="link" href="gdk-Windows.html#GdkWindow">GdkWindow</a> *window, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> owner_events, <a class="link" href="gdk-Events.html#GdkEventMask">GdkEventMask</a> event_mask, <a class="link" href="gdk-Windows.html#GdkWindow">GdkWindow</a> *confine_to, <a class="link" href="gdk-Cursors.html#GdkCursor">GdkCursor</a> *cursor, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint32">guint32</a> time_);enum <a class="link" href="gdk-General.html#GdkGrabStatus">GdkGrabStatus</a>;void <a class="link" href="gdk-General.html#gdk-pointer-ungrab">gdk_pointer_ungrab</a> (<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="gdk-General.html#gdk-pointer-is-grabbed">gdk_pointer_is_grabbed</a> (void);void <a class="link" href="gdk-General.html#gdk-set-double-click-time">gdk_set_double_click_time</a> (<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint">guint</a> msec);<a class="link" href="gdk-General.html#GdkGrabStatus">GdkGrabStatus</a> <a class="link" href="gdk-General.html#gdk-keyboard-grab">gdk_keyboard_grab</a> (<a class="link" href="gdk-Windows.html#GdkWindow">GdkWindow</a> *window, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> owner_events, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint32">guint32</a> time_);void <a class="link" href="gdk-General.html#gdk-keyboard-ungrab">gdk_keyboard_ungrab</a> (<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint32">guint32</a> time_);void <a class="link" href="gdk-General.html#gdk-beep">gdk_beep</a> (void);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="gdk-General.html#gdk-get-use-xshm">gdk_get_use_xshm</a> (void);void <a class="link" href="gdk-General.html#gdk-set-use-xshm">gdk_set_use_xshm</a> (<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> use_xshm);void <a class="link" href="gdk-General.html#gdk-error-trap-push">gdk_error_trap_push</a> (void);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> <a class="link" href="gdk-General.html#gdk-error-trap-pop">gdk_error_trap_pop</a> (void);#define <a class="link" href="gdk-General.html#GDK-WINDOWING-X11:CAPS">GDK_WINDOWING_X11</a>#define <a class="link" href="gdk-General.html#GDK-WINDOWING-WIN32:CAPS">GDK_WINDOWING_WIN32</a></pre></div><div class="refsect1" lang="en"><a name="id3045335"></a><h2>Description</h2><p>This section describes the GDK initialization functions and miscellaneousutility functions.</p></div><div class="refsect1" lang="en"><a name="id3045351"></a><h2>Details</h2><div class="refsect2" lang="en"><a name="id3045360"></a><h3><a name="gdk-init"></a>gdk_init ()</h3><a class="indexterm" name="id3045370"></a><pre class="programlisting">void gdk_init (<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *argc, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> ***argv);</pre><p>Initializes the GDK library and connects to the X server.If initialization fails, a warning message is output and the applicationterminates with a call to <code class="literal">exit(1)</code>.</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> areupdated accordingly.</p><p>GTK+ initializes GDK in <ahref="/usr/share/gtk-doc/html/gtk/gtk-General.html#gtk-init"><code class="function">gtk_init()</code></a> and so this function is not usually neededby GTK+ applications.</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><p><span class="term"><em class="parameter"><code>argc</code></em> :</span></p></td><td>the number of command line arguments.</td></tr><tr><td><p><span class="term"><em class="parameter"><code>argv</code></em> :</span></p></td><td>the array of command line arguments.</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3045466"></a><h3><a name="gdk-init-check"></a>gdk_init_check ()</h3><a class="indexterm" name="id3045478"></a><pre class="programlisting"><ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> gdk_init_check (<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *argc, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> ***argv);</pre><p>Initializes the GDK library and connects to the X server, returning <ahref="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> onsuccess.</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> areupdated accordingly.</p><p>GTK+ initializes GDK in <ahref="/usr/share/gtk-doc/html/gtk/gtk-General.html#gtk-init"><code class="function">gtk_init()</code></a> and so this function is not usually neededby GTK+ applications.</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><p><span class="term"><em class="parameter"><code>argc</code></em> :</span></p></td><td>the number of command line arguments.</td></tr><tr><td><p><span class="term"><em class="parameter"><code>argv</code></em> :</span></p></td><td>the array of command line arguments.</td></tr><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td><td><ahref="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if initialization succeeded.</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3045610"></a><h3><a name="gdk-parse-args"></a>gdk_parse_args ()</h3><a class="indexterm" name="id3045624"></a><pre class="programlisting">void gdk_parse_args (<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *argc, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> ***argv);</pre><p>Parse command line arguments, and store for futureuse by calls to <a class="link" href="GdkDisplay.html#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> areupdated accordingly.</p><p>You shouldn't call this function explicitely if you are using⌨️ 快捷键说明
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