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 Mastodon or Twitter @psychtoolbox

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PsychHID(‘NumDevices’)

Psychtoolbox>PsychHID.{mex*} subfunction

numberOfDevices=PsychHID(‘NumDevices’)

Return the the number of USB HID devices connected to your computer.

###See also: