Demos for ttk added.

Demo/tkinter/ttk/listbox_scrollcmd.py

@@ -0,0 +1,37 @@
+"""Sample taken from: http://www.tkdocs.com/tutorial/morewidgets.html and
+converted to Python, mainly to demonstrate xscrollcommand option.
+
+grid [tk::listbox .l -yscrollcommand ".s set" -height 5] -column 0 -row 0 -sticky nwes
+grid [ttk::scrollbar .s -command ".l yview" -orient vertical] -column 1 -row 0 -sticky ns
+grid [ttk::label .stat -text "Status message here" -anchor w] -column 0 -row 1 -sticky we
+grid [ttk::sizegrip .sz] -column 1 -row 1 -sticky se
+grid columnconfigure . 0 -weight 1; grid rowconfigure . 0 -weight 1
+for {set i 0} {$i<100} {incr i} {
+   .l insert end "Line $i of 100"
+   }
+"""
+import Tkinter
+import ttk
+
+root = Tkinter.Tk()
+
+l = Tkinter.Listbox(height=5)
+l.grid(column=0, row=0, sticky='nwes')
+
+s = ttk.Scrollbar(command=l.yview, orient='vertical')
+l['yscrollcommand'] = s.set
+s.grid(column=1, row=0, sticky="ns")
+
+stat = ttk.Label(text="Status message here", anchor='w')
+stat.grid(column=0, row=1, sticky='we')
+
+sz = ttk.Sizegrip()
+sz.grid(column=1, row=1, sticky='se')
+
+root.grid_columnconfigure(0, weight=1)
+root.grid_rowconfigure(0, weight=1)
+
+for i in range(100):
+    l.insert('end', "Line %d of 100" % i)
+
+root.mainloop()