3 files changed, 11 insertions, 8 deletions
diff --git a/ext/tk/lib/tk/canvas.rb b/ext/tk/lib/tk/canvas.rb
index 02b4a8cb20..c30fd79bb9 100644
--- a/ext/tk/lib/tk/canvas.rb
+++ b/ext/tk/lib/tk/canvas.rb
@@ -42,7 +42,7 @@ end
 
 class TkCanvas<TkWindow
   include TkCanvasItemConfig
-  include Scrollable
+  include Tk::Scrollable
 
   TkCommandNames = ['canvas'.freeze].freeze
   WidgetClassName = 'Canvas'.freeze
@@ -543,8 +543,8 @@ class TkCanvas<TkWindow
     tk_send_without_enc('scan', 'mark', x, y)
     self
   end
-  def scan_dragto(x, y)
-    tk_send_without_enc('scan', 'dragto', x, y)
+  def scan_dragto(x, y, gain=None)
+    tk_send_without_enc('scan', 'dragto', x, y, gain)
     self
   end
 
diff --git a/ext/tk/lib/tk/scrollable.rb b/ext/tk/lib/tk/scrollable.rb
index ec27b76467..96959b7a4b 100644
--- a/ext/tk/lib/tk/scrollable.rb
+++ b/ext/tk/lib/tk/scrollable.rb
@@ -4,7 +4,7 @@
 require 'tk'
 
 module Tk
-  module X_Scrollable
+  module XScrollable
     def xscrollcommand(cmd=Proc.new)
       configure_cmd 'xscrollcommand', cmd
       # Tk.update  # avoid scrollbar trouble
@@ -38,7 +38,7 @@ module Tk
     end
   end
 
-  module Y_Scrollable
+  module YScrollable
     def yscrollcommand(cmd=Proc.new)
       configure_cmd 'yscrollcommand', cmd
       # Tk.update  # avoid scrollbar trouble
@@ -72,8 +72,11 @@ module Tk
     end
   end
 
+  X_Scrollable = XScrollable
+  Y_Scrollable = YScrollable
+
   module Scrollable
-    include X_Scrollable
-    include Y_Scrollable
+    include XScrollable
+    include YScrollable
   end
 end
diff --git a/ext/tk/lib/tk/txtwin_abst.rb b/ext/tk/lib/tk/txtwin_abst.rb
index 5520360eab..540f806d17 100644
--- a/ext/tk/lib/tk/txtwin_abst.rb
+++ b/ext/tk/lib/tk/txtwin_abst.rb
@@ -4,7 +4,7 @@
 require 'tk'
 
 class TkTextWin<TkWindow
-  TkCommnadNames = [].freeze
+  TkCommandNames = [].freeze
   #def create_self
   #  fail RuntimeError, "TkTextWin is an abstract class"
   #end