How to iterate initialized enumerated types with Delphi 6 and avoid the "out of bounds" error? -

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i using delphi 6 professional. interfacing dll libraty declares enumberated type follows:

textdllenum = (enum1 = $0, enum2 = $1, enum3 = $2, enum4 = $4, enum5 = $8, enum6 = $10);

as can see initialized values not contiguous. if try iterate type using loop follows:

var     e: textdllenum; begin     e := low(texttodllenum) high(texttodllenum)     ... // more code end;

delphi still increments e 1 each loop invocation , thereby creates numeric values e not members of enumerated type (for example, '3'), , resulting in 'out of bounds' error. how can iterate enumerated type in loop generates valid values enumerated type?

thanks.

by defining set of constants...

type   textdllenum = (enum1 = $0, enum2 = $1, enum3 = $2, enum4 = $4, enum5 = $8, enum6 = $10);  const   cextdllenumset = [enum1, enum2, enum3, enum4, enum5, enum6];   var   e: textdllenum; begin   e := low(textdllenum);   while e <= high(textdllenum)   begin     if e in cextdllenumset        writeln(ord(e));      inc(e);   end;    readln; end.

and implemented iterator - fun...

type   textdllenum = (enum1 = $0, enum2 = $1, enum3 = $2, enum4 = $4, enum5 = $8, enum6 = $10); const   cextdllenumset = [enum1, enum2, enum3, enum4, enum5, enum6];  type   tmyiterator = class   private     fvalue: textdllenum;   public     constructor create;     function next: textdllenum;     function hasnext: boolean;   end;    constructor tmyiterator.create;   begin     fvalue := low(textdllenum);   end;    function tmyiterator.hasnext: boolean;   begin     result := fvalue <= high(textdllenum);   end;    function tmyiterator.next: textdllenum;   begin     result := fvalue;      repeat       inc(fvalue);     until (fvalue in cextdllenumset) or (fvalue > high(textdllenum))   end;  var   myiterator: tmyiterator; begin   myiterator := tmyiterator.create;    while myiterator.hasnext     writeln(ord(myiterator.next));    myiterator.free;    readln; end.

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