<p><b>@bxgaillard</b> commented on this pull request.</p>

<hr>

<p>In <a href="https://github.com/geany/geany-plugins/pull/791#discussion_r239033661">debugger/src/tpage.c</a>:</p>
<pre style='color:#555'>>      }
        g_list_free(modules);
        gtk_combo_box_set_active(GTK_COMBO_BOX(debugger_cmb), 0);
 
        /* arguments */
        args_frame = gtk_frame_new(_("Command Line Arguments"));
+#if GTK_CHECK_VERSION(3, 0, 0)
+       hbox = gtk_scrolled_window_new(
+               gtk_scrollable_get_hadjustment(GTK_SCROLLABLE(args_textview)),
+               gtk_scrollable_get_vadjustment(GTK_SCROLLABLE(args_textview)));
+       gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(hbox), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
</pre>
<p>The code can't be the same between GTK+2 and GTK+3 because the GtkTextView (and the GtkTreeView) don't implement the GtkScrollable interface in GTK+2 whereas they do in GTK+3 and shall seemingly be handled with a GtkScrolledWindow to add the scrolling functionality from what I can understand.</p>
<p>However you're absolutely right about the use before assignment, this is fixed.</p>

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