Input Variables to IX^DIC Lookup Close window button

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.