#include "iscenegraph.h"
#include "generic/callback.h"
+#include "signal/signalfwd.h"
#include "string/stringfwd.h"
class Map;
class MapFormat;
-void Map_addValidCallback(Map& map, const Callback& callback);
+void Map_addValidCallback(Map& map, const SignalHandler& handler);
bool Map_Valid(const Map& map);
class DeferredDraw