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% 	EyelinkToolbox.
% 
% 	The EyelinkToolbox can be used to ceate eye-movement experiments and
%   control the SR-Research Eyelink© gazetrackers
%   (http://www.eyelinkinfo.com/) from within Matlab and Octave.
%   It is incorporated into the PsychToolbox (http://www.psychtoolbox.org/).
%   It provides an interface to the Eyelink Gazetracker.
%   It uses a very similar  approach as the PsychToolBox and uses the
%   functions provided by the PsychToolBox for graphics and sound.
%
%   How to start using it:
%
%   The EyelinkToolbox is a collection of m-files and a Mex file.
%   The EyelinkToolbox core is the mex/dll-file called Eyelink. The
%   EyelinkToolbox uses the same approach as the SCREEN mex/dll function
%   provided in the PsychToolBox. Most of the Eyelink functions that are
%   avaible in C are also available under Matlab. In addition, the
%   EyelinkToolbox provides a number of wrapper functions to simplify
%   creating an eye-tracking program. The main functionality of the 
%   EyelinkToolbox is demonstrated in a number of demos. This is probably
%   where you want to start if you are new to the EyelinkToolbox.
%   
%   For a complete list of available functions type "Eyelink" in the Matlab
%   command window. For an explanation of any particular eyelink function
%   just add a question mark "?" after a command. E.g. for help on the 
%   function 'Initialize', try either of these equivalent forms:
%
% 		Eyelink('Initialize?')
% 		Eyelink initialize?
%
%	Contents of the EyelinkToolbox folder:
%
%	-Contents.m: this file.
%
%	-Changes.m: file that documents changes to the EyelinkToolbox
%
%	-EyelinkBasic
%		Eyelink.mex/dll file and a collection of m-files that provide the
%       core functionality of the toolbox.
%
%	-EyelinkDemos
%       EyelinkShortDemos is the best place to start. Contains relatively 
%       simple demos. The SR-Research Demo folder is a slightly more
%       elaborate example. The folder BRMIC contains the original example
%       as shown in the EyelinkToolbox article in BRMIC (Cornelissen,
%       Peters and Palmer 2002). It is obsolete in many ways but left in
%       the toolbox for historic reasons.
%
%   -EyelinkOneLiners
%       Handy routines that provide less essential functionality
%
%	We welcome any observations, suggestions that may help us improve this
%	toolbox. If any particular function you need is still missing, let us know
%	and we'll try to incorporate it into a next release. In case you decide
%   to add or modify functions yourself, please send us the modified code.
% 	If you think you've found a bug, please tell us. It will help greatly
%   if you can supply a  minimal-length program that exhibits the bug.
%   If you're interested in the c-source code of this project, it is part
%	of the source code of the PsychToolbox (http://www.psychtoolbox.org/).
%
%   ******Citing the use of the Eyelink Toolbox******
% 
%   We would very much appreciate it if you would (also) cite the EyelinkToolbox
%   paper when you have used the toolbox in your work. You could write something
%   like:
%
%   We wrote our experiments in Matlab, using the Psychophysics and Eyelink
%   Toolbox extensions (Brainard, 1997; Pelli, 1997; Cornelissen, Peters &
%   Palmer, 2002; see http://psychtoolbox.org/).
% 
%   Brainard, D. H. (1997) The Psychophysics Toolbox, Spatial Vision 10:433-436.
%   Cornelissen, F.W., Peters. E., Palmer, J. (2002).
%
%   The Eyelink Toolbox: Eye tracking with MATLAB and the Psychophysics
%   Toolbox. Behavior Research Methods, Instruments & Computers, 34,
%   613-617.
%
%   Pelli, D. G. (1997) The VideoToolbox software for visual psychophysics:
%   Transforming numbers into movies, Spatial Vision 10:437-442.
%   This toolbox is also actively supported and co-developed by SR-Research
%   (http://www.eyelinkinfo.com), the manufacturer of the Eyelink
%   gazetrackers. You can contact them about it. However, if your problem
%   is likely of interest to other users as well, then please post
%   questions on the PsychToolbox mailinglist, which is also monitored by
%   SR-Research.
%
%   The EyelinkToolbox and its source code are copyright 
%   Enno Peters, Frans Cornelissen and John Palmer. Additional copyrights
%   for some contributed functions are SR-Research and the respective
%   individual developers of those functions.
%
%   (Type "Eyelink" or Eyelink('Version') for authors). The
%   toolbox is freely useable and redistributable under the terms of the
%   MIT license. The exact license text is included inside License.txt in
%   the root folder of any Psychtoolbox-3 installation.
%
%   Disclaimer: we cannot be hold responsible for any damage that may
%	            (appear to) be caused by the use of this toolbox. Use at
%	            your own risk!
%
%
%   Frans W. Cornelissen
% 	22nd July 2010
%	email: f.w.cornelissen@med.umcg.nl
%
%	Enno Peters, Frans Cornelissen and John Palmer
%	Groningen, 27-11-2002
%