Methods
T
Constants
TkCommandNames = ['checkbutton'.freeze].freeze
 
WidgetClassName = 'Checkbutton'.freeze
 
Instance Public methods
toggle()

def create_self(keys)

if keys and keys != None
  tk_call_without_enc('checkbutton', @path, *hash_kv(keys, true))
else
  tk_call_without_enc('checkbutton', @path)
end

end private :create_self

Source: show | on GitHub 

# File ext/tk/lib/tk/checkbutton.rb, line 20
def toggle
  tk_send_without_enc('toggle')
  self
end