C# dll функция с output параметрами в Delphi

procedure TMain.N4Click(Sender: TObject);
type
TGetTreatyBi2 = function(reportId:integer; copyCount:integer; treatyId:integer; reportName:string; outPutFormat:string; insurance:integer; pathEndpoint:string; out treaty:TByteDynArray; out error:string ):Integer;// external 'GenerateBytesTreaty';
var 
reportId, copyCount, treatyId, insurance:integer;
reportName, outPutFormat, pathEndpoint:string;
treaty:TByteDynArray;
error:string;
result:integer;
DLLInstance: THandle;
GetTreatyBi2: TGetTreatyBi2;
begin
    DLLInstance := LoadLibrary('GenerateBytesTreaty.dll');
    if DLLInstance = 0 then
        ShowMessage('Error loading Dll!')
    else begin
    @GetTreatyBi2 := GetProcAddress(DLLInstance, 'GenerateBytesTreaty.GenerateTreaty.GetTreatyBi2');
    if @GetTreatyBi2 <> nil then begin
   reportId:=113545;
   copyCount:=1;
   treatyId:=17727040;
   insurance:=6;
   reportName:='NewReportName';
   outPutFormat:='pdf';
   pathEndpoint:='http://10.10.2.68/Services/MyService';
   result:= GetTreatyBi2(reportId, copyCount, treatyId, reportName, outPutFormat, insurance, pathEndpoint, treaty, error);
   if result = 0 then ShowMessage('Cant open Order!');
    end else ShowMessage('Dll procedure error!');
    end
end;