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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>Setting the page flow</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="gtk-migrating-GtkAssistant.html" title="Migrating from GnomeDruid to GtkAssistant"><link rel="prev" href="decorating-the-assistant-pages.html" title="Decorating the assistant pages"><link rel="next" href="gtk-migrating-GtkRecentChooser.html" title="Migrating from EggRecent to GtkRecentChooser"><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" 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href="decorating-the-assistant-pages.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td><td><a accesskey="u" href="gtk-migrating-GtkAssistant.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="gtk-migrating-GtkRecentChooser.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td></tr></table><div class="section" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="setting-the-page-flow"></a>Setting the page flow</h2></div></div></div><p> Here is the area where <span class="structname">GtkAssistant</span> and <span class="structname">GnomeDruid</span> differ the most. While <span class="structname">GnomeDruid</span> used the "next" and "back" signals from the <span class="structname">GnomeDruidPage</span>, <span class="structname">GtkAssistant</span> uses the following techniques: </p><div class="itemizedlist"><ul type="disc"><li><p><a class="link" href="GtkAssistant.html#gtk-assistant-set-forward-page-func"><code class="function">gtk_assistant_set_forward_page_func()</code></a>: Allows to define a GtkAssistantPageFunc to let the assistant know which will be the following page given the current page.</p></li><li><p><a class="link" href="GtkAssistant.html#gtk-assistant-set-page-complete"><code class="function">gtk_assistant_set_page_complete()</code></a>: Lets the assistant know whether the specified page is complete or not, updating buttons state accordingly.</p></li><li><p><a class="link" href="GtkAssistant.html#gtk-assistant-set-page-type"><code class="function">gtk_assistant_set_page_type()</code></a>: Lets the assistant know the page role and update the buttons state accordingly. Pages can have the following roles:</p><table class="simplelist" border="0" summary="Simple list"><tr><td>Intro</td></tr><tr><td>Content</td></tr><tr><td>Progress</td></tr><tr><td>Confirmation</td></tr><tr><td>Summary</td></tr></table></li></ul></div><p> A sample GtkAssistantPageFunc could look like this: </p><pre class="programlisting">static gintforward_page_function (gint current_page, gpointer data){ switch (current_page) { case 0: return 1; case 1: if (check_page1_data ()) return 2; else return 3; case 2: return 3; default: return -1; }} </pre></div></body></html>?? 快捷鍵說明
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