Function libeyelink_sys::eyelink_wait_for_data

pub unsafe extern "C" fn eyelink_wait_for_data(
    maxwait: UINT32, 
    samples: INT16, 
    events: INT16
) -> INT16

@ingroup messaging Waits for data to be received from the eye tracker. Can wait for an event, a sample, or either. Typically used after record start to check if data is being sent.

@param maxwait Time in milliseconds to wait for data. @param samples If \c 1, return when first sample available. @param events If \c 1, return when first event available. @return \c 1 if data is available. \c 0 if timed out.

\b Example:

\code

#include 
#include 
int error;

error = start_recording(1,1,1,0);
if(error != 0) return error;   // ERROR: couldn't start recording

if(!eyelink_wait_for_data(100, 1, 0))
{
printf("ERROR: No link samples received!");
return -1;
}
\endcode

\sa \c eyelink_wait_for_block_start()