type
 TmyFilter = record
 Expr: CANExpr;
 Nodes: array[0..2] of CANNode;
 literals: array[0..7] of char;
 end;

const
 myFilter: TMyFilter = (Expr:
 (iVer: 1; iTotalSize: sizeof(TMyFilter); iNodes: 3;
 iNodeStart: sizeof(CANExpr); iLiteralStart: sizeof(CANExpr) +
 3 * sizeof(CANNode));
 Nodes:
 ((canBinary: (nodeClass: nodeBinary; canOP: canEQ;
 iOperand1: sizeof(CANNode); iOperand2: 2 * sizeof(CANNode))),
 (canField: (nodeClass: nodeField; canOP: canField2;
 iFieldNum: 0; iNameOffset: 0)),
 (canConst: (nodeClass: nodeConst; canOP: canCONST2;
 iType: fldZSTRING; iSize: 3; iOffset: 5)));
 literals:
 ('T', 'Y', 'P', 'E', #0, 'I', 'N', #0));

var
 dbResult: DBIResult;
 hFilter, hFilter1: hDBIFilter;
begin (* procedure SetupFilter *)
 dbResult := DbiAddFilter(tblAP_.Handle, 1, 1,
 False, addr(myFilter), nil, hFilter);
 dbResult := DbiActivateFilter(tblAP_.Handle, hFilter);
 tblAP_.First;
 myFilter.nodes[0].canBinary.canOp := canNE;
 dbResult := DbiAddFilter(tblAP1_.Handle, 1, 1,
 False, addr(myFilter), nil, hFilter1);
 dbResult := DbiActivateFilter(tblAP1_.Handle, hFilter1);
 tblAP1_.First;
 myFilter.nodes[0].canBinary.canOp := canEQ;
end;