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-rw-r--r--FL/Fl_Screen_Driver.H5
1 files changed, 4 insertions, 1 deletions
diff --git a/FL/Fl_Screen_Driver.H b/FL/Fl_Screen_Driver.H
index a96857bd1..8e041b25f 100644
--- a/FL/Fl_Screen_Driver.H
+++ b/FL/Fl_Screen_Driver.H
@@ -41,7 +41,10 @@ class Fl_RGB_Image;
class Fl_Group;
class Fl_Input;
-
+/** A base class describing the interface between FLTK and screen-related operations.
+This class is only for internal use by the FLTK library.
+Each supported platform implements several of the virtual methods of this class.
+*/
class FL_EXPORT Fl_Screen_Driver {
protected: