Getting various compilers to work with wxWin again

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2734 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/generic/progdlgg.h

@@ -59,7 +59,7 @@ public:
    void Resume() { m_state = Continue; }
 
    /// Callback for optional abort button
-   void OnCancel(wxEvent& WXUNUSED(event)) { m_state = Canceled; }
+   void OnCancel(wxCommandEvent& WXUNUSED(event)) { m_state = Canceled; }
 
    /// callback to disable "hard" window closing
    void OnClose(wxCloseEvent& event);