-G_END_DECLS
-
-//-----------------------------------------------------------------------------
-// idle system
-//-----------------------------------------------------------------------------
-
-extern void wxapp_install_idle_handler();
-extern bool g_isIdle;
-
-//-----------------------------------------------------------------------------
-// Misc. functions
-//-----------------------------------------------------------------------------
-
-// Needed for implementing e.g. combobox on wxGTK within a modal dialog.
-void wxAddGrab(wxWindow* window);
-void wxRemoveGrab(wxWindow* window);
-
-// Escapes string so that it is valid Pango markup XML string:
-WXDLLIMPEXP_CORE wxString wxEscapeStringForPangoMarkup(const wxString& str);
-
-// The declaration for gtk_icon_size_lookup was accidentally ifdefed out in
-// GTK+ 2.1.0 which Sun seem to have shipped with some versions of JDS
-// for Solaris 9 x86.
-#ifdef NEED_GTK_ICON_SIZE_LOOKUP
-extern "C" gboolean gtk_icon_size_lookup (GtkIconSize size,
- gint *width,
- gint *height);
-#endif
+} // extern "C"
+
+
+// ----------------------------------------------------------------------------
+// various private helper functions
+// ----------------------------------------------------------------------------
+
+namespace wxGTKPrivate
+{
+
+// these functions create the GTK widgets of the specified types which can then
+// used to retrieve their styles, pass them to drawing functions &c
+//
+// the returned widgets shouldn't be destroyed, this is done automatically on
+// shutdown
+GtkWidget *GetButtonWidget();
+GtkWidget *GetCheckButtonWidget();
+GtkWidget *GetComboBoxWidget();
+GtkWidget *GetEntryWidget();
+GtkWidget *GetHeaderButtonWidgetFirst();
+GtkWidget *GetHeaderButtonWidgetLast();
+GtkWidget *GetHeaderButtonWidget();
+GtkWidget *GetRadioButtonWidget();
+GtkWidget *GetSplitterWidget();
+GtkWidget *GetTextEntryWidget();
+GtkWidget *GetTreeWidget();
+
+} // wxGTKPrivate