GazeTK

# -----------------------------------------------------------------------

#

# (c) Copyright 1997-2013, SensoMotoric Instruments GmbH

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# -----------------------------------------------------------------------

# iViewXAPI.py

#

# Demonstrates features of iView API 

# Defines structures 

# Loads in iViewXAPI.dll

# This script shows how to set up an experiment with Python 2.7.1 (with ctypes Library) 

from ctypes import *

#===========================

#                Struct Definition

#===========================

class CSystem(Structure):

        _fields_ = [("samplerate", c_int),

        ("iV_MajorVersion", c_int),

        ("iV_MinorVersion", c_int),

        ("iV_Buildnumber", c_int),

        ("API_MajorVersion", c_int),

        ("API_MinorVersion", c_int),

        ("API_Buildnumber", c_int),

        ("iV_ETDevice", c_int)]

class CCalibration(Structure):

        _fields_ = [("method", c_int),

        ("visualization", c_int),

        ("displayDevice", c_int),

        ("speed", c_int),

        ("autoAccept", c_int),

        ("foregroundBrightness", c_int),

        ("backgroundBrightness", c_int),

        ("targetShape", c_int),

        ("targetSize", c_int),

        ("targetFilename", c_char * 256)]

class CEye(Structure):

        _fields_ = [("gazeX", c_double),

        ("gazeY", c_double),

        ("diam", c_double),

        ("eyePositionX", c_double),

        ("eyePositionY", c_double),

        ("eyePositionZ", c_double)]

class CSample(Structure):

        _fields_ = [("timestamp", c_longlong),

        ("leftEye", CEye),

        ("rightEye", CEye),

        ("planeNumber", c_int)]

class CEvent(Structure):

        _fields_ = [("eventType", c_char),

        ("eye", c_char),

        ("startTime", c_longlong),

        ("endTime", c_longlong),

        ("duration", c_longlong),

        ("positionX", c_double),

        ("positionY", c_double)]

class CAccuracy(Structure):

        _fields_ = [("deviationLX",c_double),

                                ("deviationLY",c_double),                                

                                ("deviationRX",c_double),

                                ("deviationRY",c_double)]

#===========================

#                Loading iViewX.dll 

#===========================

iViewXAPI = windll.LoadLibrary("iViewXAPI.dll")

#===========================

#                Initializing Structs

#===========================

systemData = CSystem(0, 0, 0, 0, 0, 0, 0, 0)

calibrationData = CCalibration(5, 1, 0, 0, 1, 20, 239, 1, 15, b"")

leftEye = CEye(0,0,0)

rightEye = CEye(0,0,0)

sampleData = CSample(0,leftEye,rightEye,0)

eventData = CEvent('F', 'L', 0, 0, 0, 0, 0)

accuracyData = CAccuracy(0,0,0,0)