debian man page for xdf_add_event

XDF_ADD_EVENT(3)					     xdffileio library manual						  XDF_ADD_EVENT(3)

NAME
       xdf_add_event - Appends an event to the data file

SYNOPSIS
       #include <xdfio.h>

       int xdf_add_event(struct xdf* xdf, int evttype,
			 double onset, double dur);

DESCRIPTION
       xdf_add_event()	appends  to  the file referenced by the handle xdf opened for writing an event of type evttype at time onset lasting for a
       duration dur expressed in seconds. If the event has no notion of duration, dur should be set to 0. evttype should be a value returned by  a
       successful call to xdf_add_evttype(3).

RETURN VALUE
       xdf_add_event() returns 0 in case of success. Otherwise -1 is returned and errno is set appropriately.

ERRORS
       EINVAL xdf is NULL or evttype has not been previously created by xdf_add_evttype(3)

       ENOMEM The system is unable to allocate resources.

       EPERM  The file referenced by xdf has not been opened for writing or its file format does not support events.

SEE ALSO
       xdf_add_evttype(3)

EPFL
								       2010							  XDF_ADD_EVENT(3)