Psychtoolbox-3

Psychophysics Toolbox Version 3 (PTB-3) is a free set of Matlab and GNU Octave functions for vision and neuroscience research. It makes it easy to synthesize and show accurately controlled visual and auditory stimuli and interact with the observer. Some of its functionality is available as part of Python toolkits like PsychoPy. For commercial support and services visit www.psychtoolbox.net. Follow us on Twitter @psychtoolbox

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HatLeftUp

>Psychtoolbox>PsychHardware>PsychGamepad

result = HatLeftUp
Return a constant for hat left and up position. To read a hat position, use:
JOYSTICK(joystickNumber,’GetHat’,hatNumber).

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Psychtoolbox/PsychHardware/PsychGamepad/HatLeftUp.m