Function libeyelink_sys::eyelink_send_command

pub unsafe extern "C" fn eyelink_send_command(text: *mut c_char) -> INT16

@ingroup messaging Sends a command to the connected eye tracker.

@remarks If \c eyelink_send_commnd() is used, the text command will be executed, and a result code returned that can be read with \c eyelink_command_result(). @param text String command to send. @return \c 0 if successful, otherwise link error.

\b Example:

\code

#include 

UINT32 t;
int i, j;
char buf[256];

eyelink_send_command("button_function 1 'accept_target_fixation'");

t = current_msec();
while(current_msec()-t < 1000)
{
i = eyelink_command_result();
j = eyelink_last_message(buf);

if (i == OK_RESULT)
{
eyemsg_printf("Command executed successfully: %s", j?buf:"");
break;
}
else if (i!=NO_REPLY)
{
eyemsg_printf("Error in executing command: %s", j?buf:"");
break;
}
}
\endcode

\b Output:

\code
MSG	4608038 Command executed successfully: OK
\endcode

\sa \c eyelink_command_result() and \c eyelink_timed_command()