Thanks for reply.
in skin i am writing this code for textbox:
<widget name="username" position="5,90" size="550,25" font="Regular;20" backgroundColor="background" foregroundColor="#cccccc" />
and in init() function i am writing:
self["username"] = Input(maxSize=False, type=Input.TEXT)
>Textbox is displayed correctly. "But i am not enable to insert text in it" . Means textbox is not enable. So how can i insert text in it. I pressed abcd keys of remote.