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<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">
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<link rel="chapter" href="SelectorWidgets.html" title="Selectors (File/Font/Color/Input Devices)">
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<link rel="part" href="migrating.html" title="Part IV. Migrating from Previous Versions of GTK+">
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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="new-features-GtkComboBox"></a>New features</h2></div></div></div>
<p>
The new widgets have more to offer than a mere combination of the
features of <a href="GtkOptionMenu.html" title="GtkOptionMenu"><span class="type">GtkOptionMenu</span></a> and <a href="GtkCombo.html" title="GtkCombo"><span class="type">GtkCombo</span></a>. Notable new features
include:
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<td>
<span class="term">Grid mode</span></td>
<td><p>Sometimes it is preferable to display the available
options not in a linear list, but in a grid. A typical example
would be a "color combo" where the individual items are small
square color swatches. The new widgets support gridded display
with the functions
<a href="GtkComboBox.html#gtk-combo-box-set-wrap-width"><code class="function">gtk_combo_box_set_wrap_width()</code></a>,
<a href="GtkComboBox.html#gtk-combo-box-set-row-span-column"><code class="function">gtk_combo_box_set_row_span_column()</code></a> and
<a href="GtkComboBox.html#gtk-combo-box-set-column-span-column"><code class="function">gtk_combo_box_set_column_span_column()</code></a>.
</p></td>
</tr>
<tr>
<td>
<span class="term">Display of icons</span></td>
<td><p>An often-heard complaint about <a href="GtkOptionMenu.html" title="GtkOptionMenu"><span class="type">GtkOptionMenu</span></a> is that
the icons which appear in the image menu items in its menu are not
displayed in the button showing the selected item. This limitation
has been removed in <a href="GtkComboBox.html" title="GtkComboBox"><span class="type">GtkComboBox</span></a>; the selected item appears in the
same way as the options in the popup.
</p></td>
</tr>
<tr>
<td>
<span class="term">Full tree model power</span></td>
<td><p>
Since the new widgets are built around the same models that are
used for <a href="GtkTreeView.html" title="GtkTreeView"><span class="type">GtkTreeView</span></a>, all of the powerful machinery of tree models
and cell renderers can be used.
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