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-rw-r--r--library/scrlbar.tcl11
1 files changed, 7 insertions, 4 deletions
diff --git a/library/scrlbar.tcl b/library/scrlbar.tcl
index d33121b..31c940c 100644
--- a/library/scrlbar.tcl
+++ b/library/scrlbar.tcl
@@ -3,7 +3,7 @@
# This file defines the default bindings for Tk scrollbar widgets.
# It also provides procedures that help in implementing the bindings.
#
-# RCS: @(#) $Id: scrlbar.tcl,v 1.6 1999/09/02 17:02:53 hobbs Exp $
+# RCS: @(#) $Id: scrlbar.tcl,v 1.7 1999/10/20 01:02:24 hobbs Exp $
#
# Copyright (c) 1994 The Regents of the University of California.
# Copyright (c) 1994-1996 Sun Microsystems, Inc.
@@ -164,9 +164,12 @@ proc tkScrollButtonDown {w x y} {
proc tkScrollButtonUp {w x y} {
global tkPriv
tkCancelRepeat
- $w configure -activerelief $tkPriv(relief)
- tkScrollEndDrag $w $x $y
- $w activate [$w identify $x $y]
+ if {[info exists tkPriv(relief)]} {
+ # Avoid error due to spurious release events
+ $w configure -activerelief $tkPriv(relief)
+ tkScrollEndDrag $w $x $y
+ $w activate [$w identify $x $y]
+ }
}
# tkScrollSelect --