Index: columns_filter.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/columns_filter/columns_filter.module,v
retrieving revision 1.4
diff -u -p -r1.4 columns_filter.module
--- columns_filter.module	18 Aug 2009 16:44:22 -0000	1.4
+++ columns_filter.module	24 Aug 2009 17:20:54 -0000
@@ -123,4 +123,19 @@ function theme_columns_filter_columns($c
   }
 
   return $processed_text;
+}
+
+/**
+ * Implementation of hook_wysiwyg_include_directory().
+ * @param string $type
+ *   Contains either "plugins" or "editors"?
+ * @return string
+ *   The function returns the include directory "plugins". This directory must only
+ *   contain wysiwyg api integration files.
+ */
+function columns_filter_wysiwyg_include_directory($type) {
+  switch ($type) {
+    case 'plugins':
+      return $type;
+  }
 }
\ No newline at end of file