#ifndef PREFERENCESTHREAD_INC
#define PREFERENCESTHREAD_INC
-class PreferencesDialog;
-class PreferencesMenuItem;
+class PreferencesMenuitem;
class PreferencesThread;
+class PreferencesDialog;
+class PreferencesCategory;
+class PreferencesButton;
class PreferencesWindow;
+class PreferencesButton;
+class PreferencesCategory;
+class PreferencesApply;
+class PreferencesOK;
+class PreferencesConfirmDialog;
+class PreferencesConfirmWindow;
+class PreferencesCancel;
#endif