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Автор: Gokhan Ersumer

procedure EqualClassProperties(AClass1, AClass2: TObject);
var
  PropList: PPropList;
  ClassTypeInfo: PTypeInfo;
  ClassTypeData: PTypeData;
  i: integer;
  NumProps: Integer;
  APersistent: TPersistent;
begin
  if AClass1.ClassInfo <> AClass2.ClassInfo then
    exit;
  ClassTypeInfo := AClass1.ClassInfo;
  ClassTypeData := GetTypeData(ClassTypeInfo);
  if ClassTypeData.PropCount <> 0 then
  begin
    GetMem(PropList, SizeOf(PPropInfo) * ClassTypeData.PropCount);
    try
      GetPropInfos(AClass1.ClassInfo, PropList);
      for i := 0 to ClassTypeData.PropCount - 1 do
        if not (PropList[i]^.PropType^.Kind = tkMethod) then
          {if Class1,2 is TControl/TWinControl on same form, its names must be unique}
          if PropList[i]^.Name <> 'Name' then
            if (PropList[i]^.PropType^.Kind = tkClass) then
            begin
              APersistent := TPersistent(GetObjectProp(AClass1,
                PropList[i]^.Name, TPersistent));
              if APersistent <> nil then
                APersistent.Assign(TPersistent(GetObjectProp(AClass2,
                  PropList[i]^.Name, TPersistent)))
            end
            else
              SetPropValue(AClass1, PropList[i]^.Name, GetPropValue(AClass2,
                PropList[i]^.Name));
    finally
      FreeMem(PropList, SizeOf(PPropInfo) * ClassTypeData.PropCount);
    end;
  end;
end;

Note that this code skips object properties inherited other than TPersistent.