From 0cac8d52e3433a3816399797439017b2ca929451 Mon Sep 17 00:00:00 2001
From: Matthias Melcher <git@matthiasm.com>
Date: Mon, 4 Feb 2019 23:12:02 +0100
Subject: Fl_Roller can now be controlled via the mouse wheel (STR #3120).

---
 FL/Fl_Roller.H | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'FL')

diff --git a/FL/Fl_Roller.H b/FL/Fl_Roller.H
index b96e92638..c9a77bea4 100644
--- a/FL/Fl_Roller.H
+++ b/FL/Fl_Roller.H
@@ -29,6 +29,11 @@
 /**
   The Fl_Roller widget is a "dolly" control commonly used to
   move 3D objects.
+
+  The Roller can be controlled by clicking an ddragging the mouse, by the
+  corresponding arrow keys when the roller has the keyboard focus, or by the
+  mousewheels when the mouse pointer is positioned over the roller widget.
+ 
   <P ALIGN=CENTER>\image html Fl_Roller.png 
   \image latex Fl_Roller.png "Fl_Roller" width=4cm
 */
-- 
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