hp3561_source_window (ul_scopes)

	status.i4.v = hp3561_source_window(dev_address.i4.v, x_value.r4.v, 
					y_value.r4.v)

	This routine will allow control of the HP3561 source commands via
	a created window.  The routine will allow the user to set the 
	source attenuation,choose type of noise and turn the source on 
	and off.  The value of the current attenuation is also returned to 
 	the window.

	dev_address	address of scope; A previos call to gpib_select()
			will have to be made to establish communication 
			to correct VME.
	x_value		x coordinate where the window is created. 
	y_value		y coordinate where the window is created.


	This function returns ACNET status values as follows:

	CBS_OK			success
	CBS_INVARG		invalid device address
	otherwise		GAS error

	This function requires the following include files:

	ul_scopes_h:hpdefs_h

	Related functions:

	hp3561_get_waveform, hp3561_init, hp3561_marker_to_peak, 
	hp3561_read_marker, hp3561_read_source_values, hp3561_read_values, 
	hp3561_set_source_atten, hp3561_source_on, hp3561_source_window