Input Variables to IX^DIC Lookup DIC - Set to the global root of the file. DIC(0) - Set to the lookup parameters: Q Question erroneous input with two question marks (??). E Echo information (dialog with the user is allowed). A Ask the user for the lookup value; if erroneous, ask again. Z Return the zero node of the selected entry in Y(0), and the external form of the .01 field. D - Set to the name of the index to use in the lookup.