Updates For OpenVMS support and some extra includes to define wx(xxxx)DC types.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@50875 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk1/dcscreen.cpp

@@ -18,6 +18,7 @@
 #include <gdk/gdkx.h>
 #include <gtk/gtk.h>
 
+#include "wx/dcscreen.h"
 #include "wx/gtk1/dcscreen.h"
 
 //-----------------------------------------------------------------------------

src/gtk1/minifram.cpp

@@ -19,6 +19,7 @@
 #endif
 
 #include "gtk/gtk.h"
+#include "wx/dcclient.h"
 #include "wx/gtk1/win_gtk.h"
 #include "wx/gtk1/private.h"
 #include "wx/gtk1/dcclient.h"