Improved processing of retina displays: replace [NSWindow backingScaleFactor] that is not recommended.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10477 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 1 insertions, 0 deletions

diff --git a/FL/mac.H b/FL/mac.H
index 3bb282905..31d23a83a 100644
--- a/FL/mac.H
+++ b/FL/mac.H
@@ -142,6 +142,7 @@ public:
   static void q_begin_image(CGRect&, int x, int y, int w, int h);
   static void q_end_image();
   // Cocoa additions
+  static CGSize window_pixel_size(Fl_Window* win);
   void destroy(void);
   void map(void);
   void unmap(void);