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-rw-r--r--library/listbox.tcl11
1 files changed, 10 insertions, 1 deletions
diff --git a/library/listbox.tcl b/library/listbox.tcl
index ebef6ed..45f0b9b 100644
--- a/library/listbox.tcl
+++ b/library/listbox.tcl
@@ -3,10 +3,11 @@
# This file defines the default bindings for Tk listbox widgets
# and provides procedures that help in implementing those bindings.
#
-# RCS: @(#) $Id: listbox.tcl,v 1.3 1998/09/14 18:23:23 stanton Exp $
+# RCS: @(#) $Id: listbox.tcl,v 1.4 1998/10/10 00:30:36 rjohnson Exp $
#
# Copyright (c) 1994 The Regents of the University of California.
# Copyright (c) 1994-1995 Sun Microsystems, Inc.
+# Copyright (c) 1998 by Scriptics Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
@@ -171,6 +172,14 @@ bind Listbox <B2-Motion> {
%W scan dragto %x %y
}
+# The MouseWheel will typically only fire on Windows. However,
+# someone could use the "event generate" command to produce one
+# on other platforms.
+
+bind Listbox <MouseWheel> {
+ %W yview scroll [expr - (%D / 120) * 4] units
+}
+
# tkListboxBeginSelect --
#
# This procedure is typically invoked on button-1 presses. It begins