[VBLTimestamp StimulusOnsetTime FlipTimestamp Missed Beampos
] =
Screen('
AsyncFlipEnd', windowPtr
);
Wait for completion of a previously scheduled asynchronous flip operation (see
Screen AsyncFlipBegin? for help).
This command will wait for completion on onscreen window "windowPtr", then
return the result of the operation, ie. all the stimulus onset timestamps and
other diagnostic information. See help for
Screen Flip? for explanation of the
returned info.
Screen('
AsyncFlipCheckEnd') provides a non-blocking, polling version of this
command -- one that doesn't pause if the referenced operation hasn't completed
yet.