Many changes to the printing classes.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1981 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/dcclient.h

@@ -92,6 +92,9 @@ public:
 
   virtual void DrawSpline( wxList *points );
 
+  // Resolution in pixels per logical inch
+  wxSize GetPPI(void) const;
+
   // implementation
 
   GdkWindow    *m_window;