gpointer hook_data);
+/**
+ * Function to get the current filter of the main window : useful at viewer
+ * instanciation.
+ *
+ * @param tab the tab the viewer belongs to.
+ *
+ * returns : the current filter.
+ */
+
+
+LttvFilter *lttvwindow_get_filter(Tab *tab);
+
/**
* Function to register a hook function for a viewer to set/update its
* current time.