def sendCommand(self, key, value=None):
"""
sendCommand accepts the following two comman key values:
* get_control_status : returns a dictionary with all control structure attributes and current values.
* get_config: returns a dictionary in the form {'iNVis':egConfig.iNVis, 'bEyefollower': egConfig.bEyefollower}
Args:
key: either 'get_control_status' or 'get_config'
Returns:
dict: result of the command request.
"""
try:
if self._eyegaze_control:
if key == 'get_control_status':
rdict = dict()
for a in self._eyegaze_control.__slots__:
v = getattr(self._eyegaze_control, a)
rdict[a] = v
return rdict
elif key == 'get_config':
egConfig = pEyeGaze._stEgConfig(0, 0)
r = pEyeGaze.EgGetConfig(byref(self._eyegaze_control),
byref(egConfig), sizeof(egConfig))
rdict = None
if r == 0:
rdict = {
'iNVis': egConfig.iNVis,
'bEyefollower': egConfig.bEyefollower
}
egConfig = None
return rdict
else:
print2err(
'WARNING: EyeGaze command not handled: {0} = {1}.'.
format())
except Exception, e:
return createErrorResult(
"IOHUB_DEVICE_EXCEPTION",
error_message=
"An unhandled exception occurred on the ioHub Server Process.",
method="EyeTracker.sendCommand",
key=key,
value=value,
error=e)
