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<div class="chapter">
<div class="titlepage"><div><div><h2 class="title">
<a name="gtk-migrating-tooltips"></a>Migrating from GtkTooltips to GtkTooltip</h2></div></div></div>
<p>
GTK+ 2.12 brings a completely new tooltip implementation which
allows many things that were not possible with the old
<a class="link" href="GtkTooltips.html" title="GtkTooltips"><span class="type">GtkTooltips</span></a> interface. The new possibilities are explained
in more detail in the section about <a class="link" href="GtkTooltip.html" title="GtkTooltip"><span class="type">GtkTooltip</span></a>.
</p>
<p>
A number of complications of the old API have been removed:
</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p>
Tooltips can not be grouped anymore. The old tooltips
API allowed this by using multiple <a class="link" href="GtkTooltips.html" title="GtkTooltips"><span class="type">GtkTooltips</span></a> objects.
We believe that the timeout behaviour of the new tooltips
implementation is better and makes it unnecessary to use
grouping as a way to overcome shortcomings of the
fast-tooltips mode.
</p></li>
<li class="listitem"><p>
Timeouts can not be set individually anymore. Instead
there are settings <a class="link" href="GtkSettings.html#GtkSettings--gtk-tooltip-timeout" title="The “gtk-tooltip-timeout” property"><span class="type">“gtk-tooltip-timeout”</span></a>,
<a class="link" href="GtkSettings.html#GtkSettings--gtk-tooltip-browse-timeout" title="The “gtk-tooltip-browse-timeout” property"><span class="type">“gtk-tooltip-browse-timeout”</span></a> and
<a class="link" href="GtkSettings.html#GtkSettings--gtk-tooltip-browse-mode-timeout" title="The “gtk-tooltip-browse-mode-timeout” property"><span class="type">“gtk-tooltip-browse-mode-timeout”</span></a> to influence
the behaviour of tooltips globally.
</p></li>
</ul></div>
<p>
</p>
<p>
Here is an example of setting a tooltip on a widget with the old API:
</p>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1
2</pre></td>
<td class="listing_code"><pre class="programlisting"><span class="n">GtkTooltips</span> <span class="o">*</span><span class="n">tooltips</span> <span class="o">=</span> <span class="n">gtk_tooltips_new</span> <span class="p">();</span>
<span class="n">gtk_tooltips_set_tip</span> <span class="p">(</span><span class="n">tooltips</span><span class="p">,</span> <span class="n">widget</span><span class="p">,</span> <span class="s">"Some tips"</span><span class="p">,</span> <span class="nb">NULL</span><span class="p">);</span></pre></td>
</tr>
</tbody>
</table>
</div>
<p>
</p>
<p>
Using the new tooltips API, it is no longer necessary to create
an object:
</p>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1</pre></td>
<td class="listing_code"><pre class="programlisting"><span class="n">gtk_widget_set_tooltip_text</span> <span class="p">(</span><span class="n">widget</span><span class="p">,</span> <span class="s">"Some tips"</span><span class="p">);</span></pre></td>
</tr>
</tbody>
</table>
</div>
<p>
</p>
<p>
Similarly, setting a tooltip on a <a class="link" href="GtkToolItem.html" title="GtkToolItem"><span class="type">GtkToolItem</span></a> gets
simplified from
</p>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1</pre></td>
<td class="listing_code"><pre class="programlisting"><span class="n">gtk_tool_item_set_tooltip</span> <span class="p">(</span><span class="n">toolitem</span><span class="p">,</span> <span class="n">toolbar</span><span class="o">-></span><span class="n">tooltips</span><span class="p">,</span> <span class="s">"tool tip"</span><span class="p">,</span> <span class="nb">NULL</span><span class="p">);</span></pre></td>
</tr>
</tbody>
</table>
</div>
<p>
to
</p>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1</pre></td>
<td class="listing_code"><pre class="programlisting"><span class="n">gtk_tool_item_set_tooltip_text</span> <span class="p">(</span><span class="n">toolitem</span><span class="p">,</span> <span class="n">text</span><span class="p">);</span></pre></td>
</tr>
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