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-rw-r--r--library/demos/puzzle.tcl4
1 files changed, 3 insertions, 1 deletions
diff --git a/library/demos/puzzle.tcl b/library/demos/puzzle.tcl
index 61d8a80..8b1a888 100644
--- a/library/demos/puzzle.tcl
+++ b/library/demos/puzzle.tcl
@@ -3,12 +3,14 @@
# This demonstration script creates a 15-puzzle game using a collection
# of buttons.
#
-# RCS: @(#) $Id: puzzle.tcl,v 1.5 2003/08/20 23:02:18 hobbs Exp $
+# RCS: @(#) $Id: puzzle.tcl,v 1.6 2004/12/21 11:56:35 dkf Exp $
if {![info exists widgetDemo]} {
error "This script should be run from the \"widget\" demo."
}
+package require Tk
+
# puzzleSwitch --
# This procedure is invoked when the user clicks on a particular button;
# if the button is next to the empty space, it moves the button into th