+class WXDLLIMPEXP_FWD_CORE wxFont;
+class WXDLLIMPEXP_FWD_CORE wxWindow;
+class WXDLLIMPEXP_FWD_BASE wxString;
+class WXDLLIMPEXP_FWD_CORE wxBitmap;
+
+// ---------------------------------------------------------------------------
+// private constants
+// ---------------------------------------------------------------------------
+
+//
+// Constant strings for control names and classes
+//
+
+//
+// Controls
+//
+WXDLLEXPORT_DATA(extern const wxChar) wxButtonNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxCheckBoxNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxChoiceNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxComboBoxNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxDialogNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxFrameNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxGaugeNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxStaticBoxNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxListBoxNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxStaticLineNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxStaticTextNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxStaticBitmapNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxPanelNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxRadioBoxNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxRadioButtonNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxBitmapRadioButtonNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxScrollBarNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxSliderNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxTextCtrlNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxToolBarNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxStatusLineNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxGetTextFromUserPromptStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxMessageBoxCaptionStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxFileSelectorPromptStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxFileSelectorDefaultWildcardStr[];
+WXDLLEXPORT_DATA(extern const wxChar*) wxInternalErrorStr;
+WXDLLEXPORT_DATA(extern const wxChar*) wxFatalErrorStr;
+WXDLLEXPORT_DATA(extern const wxChar) wxTreeCtrlNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxDirDialogNameStr[];
+WXDLLEXPORT_DATA(extern const wxChar) wxDirDialogDefaultFolderStr[];
+
+//
+// Class names
+//
+WXDLLEXPORT_DATA(extern const wxChar*) wxFrameClassName;
+WXDLLEXPORT_DATA(extern const wxChar*) wxFrameClassNameNoRedraw;
+WXDLLEXPORT_DATA(extern const wxChar*) wxMDIFrameClassName;
+WXDLLEXPORT_DATA(extern const wxChar*) wxMDIFrameClassNameNoRedraw;
+WXDLLEXPORT_DATA(extern const wxChar*) wxMDIChildFrameClassName;
+WXDLLEXPORT_DATA(extern const wxChar*) wxMDIChildFrameClassNameNoRedraw;
+WXDLLEXPORT_DATA(extern const wxChar*) wxPanelClassName;
+WXDLLEXPORT_DATA(extern const wxChar*) wxPanelClassNameNR;
+WXDLLEXPORT_DATA(extern const wxChar*) wxCanvasClassName;
+WXDLLEXPORT_DATA(extern const wxChar*) wxCanvasClassNameNR;