Fix compilation issues

src/view/wxUI.hpp

@@ -42,6 +42,8 @@ class PreferencesPanel;
 
 class wxUI: public QFrame
 {
+    Q_OBJECT;
+
 public:
     static const int MAX_CATEGORY = 12;
     static QString months[MAX_CATEGORY];
@@ -67,10 +69,11 @@ public:
 
     int _language;
 
-    void OnButtonClicked(QEvent& event);
-    void OnButtonChangeUser(QEvent& event);
-    void OnButtonAbout(QEvent& event);
-    void OnButtonQuit(QEvent& event);
+private slots:
+    void OnButtonClicked();
+    void OnButtonChangeUser();
+    void OnButtonAbout();
+    void OnButtonQuit();
 
 private:
     KissCount    *_kiss;