Update Fl::keyboard_screen_scaling()

- make the internal variable static
- make it callable after fl_open_display()
- document that it's currently only usable to switch scaling off

1 files changed, 4 insertions, 4 deletions

diff --git a/FL/Fl.H b/FL/Fl.H
index 04f9b0db7..405eba47b 100644
--- a/FL/Fl.H
+++ b/FL/Fl.H
@@ -3,17 +3,17 @@
 //
 // Main header file for the Fast Light Tool Kit (FLTK).
 //
-// Copyright 1998-2018 by Bill Spitzak and others.
+// Copyright 1998-2020 by Bill Spitzak and others.
 //
 // This library is free software. Distribution and use rights are outlined in
 // the file "COPYING" which should have been included with this file.  If this
 // file is missing or damaged, see the license at:
 //
-//     http://www.fltk.org/COPYING.php
+//     https://www.fltk.org/COPYING.php
 //
 // Please report all bugs and problems on the following page:
 //
-//     http://www.fltk.org/str.php
+//     https://www.fltk.org/str.php
 //
 
 /** \file
@@ -1037,7 +1037,7 @@ int main() {
   static float screen_scale(int n); // via screen driver
   static void screen_scale(int n, float factor); // via screen driver
   static int screen_scaling_supported();
-  static void keyboard_screen_scaling(int);
+  static void keyboard_screen_scaling(int value);
 
 /**   @} */