Пример DbiAddFilter

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;