Implement a platform-independent version of Fl_Graphics_Driver::copy_offscreen() usable when drawing to PostScript.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12147 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 2 insertions, 0 deletions

diff --git a/FL/Fl_Screen_Driver.H b/FL/Fl_Screen_Driver.H
index e857930a7..57a8bfee0 100644
--- a/FL/Fl_Screen_Driver.H
+++ b/FL/Fl_Screen_Driver.H
@@ -140,6 +140,8 @@ public:
   virtual void open_display() {}
   // optional method to close display access
   virtual void close_display() {}
+  // compute dimensions of an Fl_Offscreen
+  virtual void offscreen_size(Fl_Offscreen off, int &width, int &height) {}
 };