1. wxProgressDialog uses wxWindowDisabler, not (dumb) wxEnableTopLevelWindows

2. some more wxWindowDisabler bugs fixed (updated dialogs sample to test them)
3. Esc won't close the dialogs without cancel button under MSW
4. status bar can be child of windows of clases other than wxFrame
   (updated statbar sample to show it)


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6630 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/generic/progdlgg.h

@@ -97,11 +97,16 @@ private:
       Continue,            // can be cancelled but wasn't
       Finished             // finished, waiting to be removed from screen
    } m_state;
+
    // the abort button (or NULL if none)
    wxButton *m_btnAbort;
+
    // the maximum value
    int m_maximum;
 
+   // for wxPD_APP_MODAL case
+   class WXDLLEXPORT wxWindowDisabler *m_winDisabler;
+
    DECLARE_EVENT_TABLE()
 };
 #endif