133     def get_balance(this, cm):  argument
134         return this._get_balance(byref(this), byref(cm))
136     def get_fade(this, cm):  argument
137         return this._get_fade(byref(this), byref(cm))
139     def set_balance(this, cm, f):  argument
140         return this._set_balance(byref(this), byref(cm), f)
142     def set_fade(this, cm, f):  argument
143         return this._set_fade(byref(this), byref(cm), f)
151 cm = ChannelMap()  variable
154     cm.parse(sys.argv[1])
156     cm.parse("surround-51")
159 v.channels = cm.channels
161 for i in range(cm.channels):
164 title = cm.to_pretty_name()
166     title = cm.snprint()
180         for i in range(cm.channels):
187         balance_scale.set_value(v.get_balance(cm))
190         fade_scale.set_value(v.get_fade(cm))
192     for i in range(cm.channels):
198     v.set_fade(cm, fade_scale.get_value())
202     v.set_balance(cm, balance_scale.get_value())
213 for i in range(cm.channels):
214     channel_labels[i] = gtk.Label(cm.position_to_pretty_string(cm.map[i]))
263 for i in range(cm.channels):
271 if not cm.can_balance():
275 if not cm.can_fade():