status.i4.v = dio_memory_set_populate_c(source.i4.v, source_data.g.v)

	This routine sets the population mode for subsequent DIO memory
	access.  The default is to populate from data pool data.

	source		source of memory data
			(DIO_AUTOPOP_DPM  -> use data pool to populate,
			 DIO_AUTOPOP_DBM  -> use database to populate,
			 DIO_AUTOPOP_SDA  -> use SDA file,
			 DIO_AUTOPOP_SCR  -> use Save/Restore file,
			 DIO_AUTOPOP_DL   -> use Lumberjack data)
	source_data	data acquistion specification depending on data source
			(DIO_AUTOPOP_DPM  -> not used,
			 DIO_AUTOPOP_DBM  -> not used,
			 DIO_AUTOPOP_SDA  -> structure of type DIO_SDA_SPEC,
			 DIO_AUTOPOP_SCR  -> structure of type DIO_SR_SPEC,
			 DIO_AUTOPOP_DL   -> structure of type DIO_DL_SPEC)

	This function returns ACNET status values as follows:

	OK			success
	DIO_BADARG		invalid data source specified

	This function requires the following include files:

	diolib_h, acnet_errors_h

	Related functions:

	dio_memory_get_raw_c, dio_memory_get_c, dio_memory_get_array_c,
	dio_memory_set_raw_c, dio_memory_set_c, dio_memory_set_array_c,
	dio_memory_control_c, dio_memory_cancel_c, dio_memory_populate_c,
	dio_memory_populate_query, dio_memory_pool_name_to_id_c

	C/C++ usage:

	int	status;
	int	source = DIO_AUTOPOP_DPM;
	void	*source_data = (void *) NULL;

	status = dio_memory_set_populate_c(source,source_data);