Fixed that arrow keys on Windows would move between controls after first extruder movement.

bufferedcanvas.py

@@ -68,7 +68,7 @@ class BufferedCanvas(wx.Panel):
                  ID=-1,
                  pos=wx.DefaultPosition,
                  size=wx.DefaultSize,
-                 style=wx.NO_FULL_REPAINT_ON_RESIZE):
+                 style=wx.NO_FULL_REPAINT_ON_RESIZE|wx.WANTS_CHARS):
         wx.Panel.__init__(self,parent,ID,pos,size,style)
 
         # Bind events

xybuttons.py

@@ -42,7 +42,7 @@ class XYButtons(BufferedCanvas):
     def onTopLevelKey(self, evt):
         # Let user press escape on any control, and return focus here
         if evt.GetKeyCode() == wx.WXK_ESCAPE:
-            self.SetFocus()            
+            self.SetFocus()
         evt.Skip()
 
     def onKey(self, evt):
@@ -65,7 +65,6 @@ class XYButtons(BufferedCanvas):
                 self.concentric = self.keypad_idx
                 x, y = self.getMovement()
                 self.moveCallback(x, y)
-            evt.Skip()
 
     
     def rotateKeypadIndex(self):