# File tk/lib/tk/scrollable.rb, line 63
def yscrollbar(bar=nil)
if bar
@yscrollbar = bar
@yscrollbar.orient 'vertical'
self.yscrollcommand {|*arg| @yscrollbar.set(*arg)}
@yscrollbar.command {|*arg| self.yview(*arg)}
Tk.update # avoid scrollbar trouble
end
@yscrollbar
end
# File tk/lib/tk/scrollable.rb, line 42
def yscrollcommand(cmd=Proc.new)
configure_cmd 'yscrollcommand', cmd
# Tk.update # avoid scrollbar trouble
self
end
# File tk/lib/tk/scrollable.rb, line 48
def yview(*index)
if index.size == 0
list(tk_send_without_enc('yview'))
else
tk_send_without_enc('yview', *index)
self
end
end
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