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-rw-r--r--src/Fl_Screen_Driver.H2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/Fl_Screen_Driver.H b/src/Fl_Screen_Driver.H
index 135a7bf5f..3047aedc5 100644
--- a/src/Fl_Screen_Driver.H
+++ b/src/Fl_Screen_Driver.H
@@ -43,6 +43,7 @@ class Fl_Window;
class Fl_RGB_Image;
class Fl_Group;
class Fl_Input;
+class Fl_System_Driver;
/**
A base class describing the interface between FLTK and screen-related operations.
@@ -68,6 +69,7 @@ public:
static char bg_set;
static char bg2_set;
static char fg_set;
+ static Fl_System_Driver *system_driver;
virtual float scale(int) { return 1; }
virtual void scale(int /*n*/, float /*f*/) {}