diff --git a/include/wx/mac/dcprint.h b/include/wx/mac/dcprint.h
index cd3722edee..f699f65351 100644
--- a/include/wx/mac/dcprint.h
+++ b/include/wx/mac/dcprint.h
@@ -35,11 +35,15 @@ class WXDLLEXPORT wxPrinterDC: public wxDC
     virtual void EndPage(void) ;
  protected :
  #if TARGET_CARBON
- 	PMPrintContext  m_macPrintPort ;
+    #if PM_USE_SESSION_APIS
+      PMPrintSession  m_macPrintPort ;
+    #else
+      PMPrintContext  m_macPrintPort ;
+    #endif
  #else
- 	TPPrPort 	m_macPrintPort ;
+      TPPrPort 	m_macPrintPort ;
  #endif
- 	wxPrintData m_printData ;
+      wxPrintData m_printData ;
 #endif // wxUSE_PRINTING_ARCHITECTURE
 };
 
diff --git a/include/wx/mac/uma.h b/include/wx/mac/uma.h
index fd2017069e..01885e7519 100644
--- a/include/wx/mac/uma.h
+++ b/include/wx/mac/uma.h
@@ -82,8 +82,13 @@ void			UMADrawMenuBar() ;
 void			UMAShowWatchCursor() ;
 void			UMAShowArrowCursor() ;
 
+#if PM_USE_SESSION_APIS
+OSStatus		UMAPrOpen(PMPrintSession *macPrintPort) ;
+OSStatus		UMAPrClose(PMPrintSession *macPrintPort) ;
+#else
 OSStatus		UMAPrOpen() ;
 OSStatus		UMAPrClose() ;
+#endif
 
 // window manager