📄 gtktooltips.html
字号:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"><title>GtkTooltips</title><meta name="generator" content="DocBook XSL Stylesheets V1.73.2"><link rel="start" href="index.html" title="GTK+ Reference Manual"><link rel="up" href="DeprecatedObjects.html" title="Deprecated"><link rel="prev" href="GtkText.html" title="GtkText"><link rel="next" href="GtkTipsQuery.html" title="GtkTipsQuery"><meta name="generator" content="GTK-Doc V1.9 (XML mode)"><link rel="stylesheet" href="style.css" type="text/css"><link rel="part" href="gtk.html" title="Part I. GTK+ Overview"><link rel="part" href="gtkbase.html" title="Part II. GTK+ Core Reference"><link rel="part" href="gtkobjects.html" title="Part III. GTK+ Widgets and Objects"><link rel="chapter" href="ch01.html" title="Object Hierarchy"><link rel="chapter" href="ch02.html" title="Widget Gallery"><link rel="chapter" href="WindowWidgets.html" title="Windows"><link rel="chapter" href="DisplayWidgets.html" title="Display Widgets"><link rel="chapter" href="ButtonWidgets.html" title="Buttons and Toggles"><link rel="chapter" href="NumericEntry.html" title="Numeric/Text Data Entry"><link rel="chapter" href="TextWidgetObjects.html" title="Multiline Text Editor"><link rel="chapter" href="TreeWidgetObjects.html" title="Tree, List and Icon Grid Widgets"><link rel="chapter" href="MenusAndCombos.html" title="Menus, Combo Box, Toolbar"><link rel="chapter" href="Actions.html" title="Action-based menus and toolbars"><link rel="chapter" href="SelectorWidgets.html" title="Selectors (File/Font/Color/Input Devices)"><link rel="chapter" href="LayoutContainers.html" title="Layout Containers"><link rel="chapter" href="Ornaments.html" title="Ornaments"><link rel="chapter" href="ScrollingWidgets.html" title="Scrolling"><link rel="chapter" href="Printing.html" title="Printing"><link rel="chapter" href="MiscObjects.html" title="Miscellaneous"><link rel="chapter" href="AbstractObjects.html" title="Abstract Base Classes"><link rel="chapter" href="PlugSocket.html" title="Cross-process Embedding"><link rel="chapter" href="SpecialObjects.html" title="Special-purpose features"><link rel="chapter" href="RecentDocuments.html" title="Recently Used Documents"><link rel="chapter" href="Builder.html" title="Interface builder"><link rel="chapter" href="DeprecatedObjects.html" title="Deprecated"><link rel="part" href="migrating.html" title="Part IV. Migrating from Previous Versions of GTK+"><link rel="chapter" href="gtk-migrating-checklist.html" title="Migration Checklist"><link rel="chapter" href="gtk-migrating-GtkFileChooser.html" title="Migrating from GtkFileSelection to GtkFileChooser"><link rel="chapter" href="gtk-migrating-GtkAction.html" title="Migrating from old menu and toolbar systems to GtkAction"><link rel="chapter" href="gtk-migrating-GtkComboBox.html" title="Migrating from GtkOptionMenu and GtkCombo to GtkComboBox and GtkComboBoxEntry"><link rel="chapter" href="gtk-migrating-GtkIconView.html" title="Migrating from GnomeIconList to GtkIconView"><link rel="chapter" href="gtk-migrating-GtkAboutDialog.html" title="Migrating from GnomeAbout to GtkAboutDialog"><link rel="chapter" href="gtk-migrating-GtkColorButton.html" title="Migrating from GnomeColorPicker to GtkColorButton"><link rel="chapter" href="gtk-migrating-GtkAssistant.html" title="Migrating from GnomeDruid to GtkAssistant"><link rel="chapter" href="gtk-migrating-GtkRecentChooser.html" title="Migrating from EggRecent to GtkRecentChooser"><link rel="chapter" href="gtk-migrating-GtkLinkButton.html" title="Migrating from GnomeHRef to GtkLinkButton"><link rel="chapter" href="gtk-migrating-GtkBuilder.html" title="Migrating from libglade to GtkBuilder"><link rel="chapter" href="gtk-migrating-tooltips.html" title="Migrating from GtkTooltips to GtkTooltip"><link rel="part" href="pt05.html" title="Part V. GTK+ Tools"><link rel="glossary" href="glossary.html" title="Glossary"><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="GtkText.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td><td><a accesskey="u" href="DeprecatedObjects.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">GTK+ Reference Manual</th><td><a accesskey="n" href="GtkTipsQuery.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="#id4586909" class="shortcut">Top</a>  |  <a href="#id4587204" class="shortcut">Description</a>  |  <a href="#id4587165" class="shortcut">Object Hierarchy</a></nobr></td></tr></table><div class="refentry" lang="en"><a name="GtkTooltips"></a><div class="titlepage"></div><div class="refnamediv"><table width="100%"><tr><td valign="top"><h2><a name="id4586909"></a><span class="refentrytitle">GtkTooltips</span></h2><p>GtkTooltips — Add tips to your widgets</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="GtkTooltips.html#GtkTooltips-struct">GtkTooltips</a>; <a class="link" href="GtkTooltips.html#GtkTooltipsData">GtkTooltipsData</a>;<a class="link" href="GtkTooltips.html" title="GtkTooltips">GtkTooltips</a>* <a class="link" href="GtkTooltips.html#gtk-tooltips-new">gtk_tooltips_new</a> (void);void <a class="link" href="GtkTooltips.html#gtk-tooltips-enable">gtk_tooltips_enable</a> (<a class="link" href="GtkTooltips.html" title="GtkTooltips">GtkTooltips</a> *tooltips);void <a class="link" href="GtkTooltips.html#gtk-tooltips-disable">gtk_tooltips_disable</a> (<a class="link" href="GtkTooltips.html" title="GtkTooltips">GtkTooltips</a> *tooltips);void <a class="link" href="GtkTooltips.html#gtk-tooltips-set-delay">gtk_tooltips_set_delay</a> (<a class="link" href="GtkTooltips.html" title="GtkTooltips">GtkTooltips</a> *tooltips, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint">guint</a> delay);void <a class="link" href="GtkTooltips.html#gtk-tooltips-set-tip">gtk_tooltips_set_tip</a> (<a class="link" href="GtkTooltips.html" title="GtkTooltips">GtkTooltips</a> *tooltips, <a class="link" href="GtkWidget.html" title="GtkWidget">GtkWidget</a> *widget, const <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> *tip_text, const <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> *tip_private);<a class="link" href="GtkTooltips.html#GtkTooltipsData">GtkTooltipsData</a>* <a class="link" href="GtkTooltips.html#gtk-tooltips-data-get">gtk_tooltips_data_get</a> (<a class="link" href="GtkWidget.html" title="GtkWidget">GtkWidget</a> *widget);void <a class="link" href="GtkTooltips.html#gtk-tooltips-force-window">gtk_tooltips_force_window</a> (<a class="link" href="GtkTooltips.html" title="GtkTooltips">GtkTooltips</a> *tooltips);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="GtkTooltips.html#gtk-tooltips-get-info-from-tip-window">gtk_tooltips_get_info_from_tip_window</a> (<a class="link" href="GtkWindow.html" title="GtkWindow">GtkWindow</a> *tip_window, <a class="link" href="GtkTooltips.html" title="GtkTooltips">GtkTooltips</a> **tooltips, <a class="link" href="GtkWidget.html" title="GtkWidget">GtkWidget</a> **current_widget);</pre></div><div class="refsect1" lang="en"><a name="id4587165"></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> +----GtkTooltips</pre></div><div class="refsect1" lang="en"><a name="id4587204"></a><h2>Description</h2><p>Tooltips are the messages that appear next to a widget when the mouse pointer is held over it for a short amount of time. They are especially helpful for adding more verbose descriptions of things such as buttons in a toolbar.</p><p>An individual tooltip belongs to a group of tooltips. A group is created with a call to <a class="link" href="GtkTooltips.html#gtk-tooltips-new"><code class="function">gtk_tooltips_new()</code></a>. Every tooltip in the group can then be turned off with a call to <a class="link" href="GtkTooltips.html#gtk-tooltips-disable"><code class="function">gtk_tooltips_disable()</code></a> and enabled with <a class="link" href="GtkTooltips.html#gtk-tooltips-enable"><code class="function">gtk_tooltips_enable()</code></a>.</p><p>The length of time the user must keep the mouse over a widget before the tip is shown, can be altered with <a class="link" href="GtkTooltips.html#gtk-tooltips-set-delay"><code class="function">gtk_tooltips_set_delay()</code></a>. This is set on a 'per group of tooltips' basis.</p><p>To assign a tip to a particular <a class="link" href="GtkWidget.html" title="GtkWidget"><span class="type">GtkWidget</span></a>, <a class="link" href="GtkTooltips.html#gtk-tooltips-set-tip"><code class="function">gtk_tooltips_set_tip()</code></a> is used.</p><div class="note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3><p>Tooltips can only be set on widgets which have their own X window andreceive enter and leave events.To check if a widget has its own window use <a class="link" href="GtkWidget.html#GTK-WIDGET-NO-WINDOW:CAPS"><code class="function">GTK_WIDGET_NO_WINDOW()</code></a>.To add a tooltip to a widget that doesn't have its own window, place thewidget inside a <a class="link" href="GtkEventBox.html" title="GtkEventBox"><span class="type">GtkEventBox</span></a> and add a tooltip to that instead.</p></div><p>The default appearance of all tooltips in a program is determined by the current GTK+ theme that the user has selected.</p><p>Information about the tooltip (if any) associated with an arbitrary widget can be retrieved using <a class="link" href="GtkTooltips.html#gtk-tooltips-data-get"><code class="function">gtk_tooltips_data_get()</code></a>.</p><p></p><div class="example"><a name="id4587352"></a><p class="title"><b>Example 55. Adding tooltips to buttons.</b></p><div class="example-contents"><pre class="programlisting"> GtkWidget *load_button, *save_button, *hbox; GtkTooltips *button_bar_tips; button_bar_tips = gtk_tooltips_new (); /* Create the buttons and pack them into a GtkHBox */ hbox = gtk_hbox_new (TRUE, 2); load_button = gtk_button_new_with_label ("Load a file"); gtk_box_pack_start (GTK_BOX (hbox), load_button, TRUE, TRUE, 2); gtk_widget_show (load_button); save_button = gtk_button_new_with_label ("Save a file"); gtk_box_pack_start (GTK_BOX (hbox), save_button, TRUE, TRUE, 2); gtk_widget_show (save_button); gtk_widget_show (hbox); /* Add the tips */ gtk_tooltips_set_tip (GTK_TOOLTIPS (button_bar_tips), load_button, "Load a new document into this window", "Requests the filename of a document. This will then be loaded into the current window, replacing the contents of whatever is already loaded."); gtk_tooltips_set_tip (GTK_TOOLTIPS (button_bar_tips), save_button, "Saves the current document to a file", "If you have saved the document previously, then the new version will be saved over the old one. Otherwise, you will be prompted for a filename."); </pre></div></div><p><br class="example-break"></p></div><div class="refsect1" lang="en"><a name="id4587388"></a><h2>Details</h2><div class="refsect2" lang="en"><a name="id4587398"></a><h3><a name="GtkTooltips-struct"></a>GtkTooltips</h3><a class="indexterm" name="id4587411"></a><pre class="programlisting">typedef struct _GtkTooltips GtkTooltips;</pre><div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Warning</h3><p><code class="literal">GtkTooltips</code> is deprecated and should not be used in newly-written code.</p></div><p>Holds information about a group of tooltips. Fields should be changed using the functions provided, rather than directly accessing the struct's members.</p></div><hr><div class="refsect2" lang="en"><a name="id4587441"></a><h3><a name="GtkTooltipsData"></a>GtkTooltipsData</h3><a class="indexterm" name="id4587457"></a><pre class="programlisting">typedef struct { GtkTooltips *tooltips; GtkWidget *widget; gchar *tip_text; gchar *tip_private;} GtkTooltipsData;</pre><div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Warning</h3><p><code class="literal">GtkTooltipsData</code> has been deprecated since version 2.12 and should not be used in newly-written code. </p></div><p><em class="structfield"><code>tooltips</code></em> is the <a class="link" href="GtkTooltips.html" title="GtkTooltips"><span class="type">GtkTooltips</span></a> group that this tooltip belongs to. <em class="structfield"><code>widget</code></em> is the <a class="link" href="GtkWidget.html" title="GtkWidget"><span class="type">GtkWidget</span></a> that this tooltip data is associated with. <em class="structfield"><code>tip_text</code></em> is a string containing the tooltip message itself.</p><p><em class="structfield"><code>tip_private</code></em> is a string that is not shown as the default tooltip. Instead, this message may be more informative and go towards forming a context-sensitive help system for your application. (FIXME: how to actually "switch on" private tips?)</p></div><hr><div class="refsect2" lang="en"><a name="id4587526"></a><h3><a name="gtk-tooltips-new"></a>gtk_tooltips_new ()</h3><a class="indexterm" name="id4587542"></a><pre class="programlisting"><a class="link" href="GtkTooltips.html" title="GtkTooltips">GtkTooltips</a>* gtk_tooltips_new (void);</pre><div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Warning</h3><p><code class="literal">gtk_tooltips_new</code> has been deprecated since version 2.12 and should not be used in newly-written code. </p></div><p>Creates an empty group of tooltips. This function initialises a <a class="link" href="GtkTooltips.html" title="GtkTooltips"><span class="type">GtkTooltips</span></a> structure. Without at least one such structure, you can not add tips to your application.</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>a new <a class="link" href="GtkTooltips.html" title="GtkTooltips"><span class="type">GtkTooltips</span></a> group for you to use.</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id4587609"></a><h3>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -