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<title>Error checking: GtkSpell Reference Manual</title>
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<div class="sect1">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="tutorial-lang"></a>Error checking</h2></div></div></div>
<p><code class="function">gtk_spell_checker_set_language</code> returns
<code class="literal">FALSE</code> if there was an error. If a
<em class="parameter"><code>GError **</code></em> was provided as the last argument, the error
message can be displayed to the user:</p>
<pre class="programlisting">
GError *err = NULL; /* this initialization is important. */
/* ... */
GtkSpellChecker* spell = gtk_spell_checker_new ();
if (!gtk_spell_checker_set_language (spell, "en_US", &err))
{
GtkWidget *errdlg;
errdlg = gtk_message_dialog_new (main_application_window,
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_CLOSE,
"Error initializing spell checking: %s",
err->message);
gtk_dialog_run (GTK_DIALOG (errdlg));
gtk_widget_destroy (errdlg);
g_error_free (err); /* don't forget to free GErrors when you're done! */
}
</pre>
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