Last round of simplification of Signal/Slot classes

- merged all the common stuff from 0,1,2,3 argument versions into one common base class
- removed ReturnType template parameter as it was instantiated with "void" everywhere and the
  current ignores the return value of the callbacks anyway

1 files changed, 1 insertions, 1 deletions

diff --git a/src/ButtonTheme.hh b/src/ButtonTheme.hh
index 77cc159..a293b71 100644
--- a/src/ButtonTheme.hh
+++ b/src/ButtonTheme.hh
@@ -43,7 +43,7 @@ public:
     int scale() const { return *m_scale; } // scale factor for inside objects
     const std::string &name() { return m_name; }
 
-    virtual FbTk::Signal<void> &reconfigSig() { return FbTk::Theme::reconfigSig(); }
+    virtual FbTk::Signal<> &reconfigSig() { return FbTk::Theme::reconfigSig(); }
 
     virtual ButtonTheme &operator *() { return *this; }
     virtual const ButtonTheme &operator *() const { return *this; }