How to pass a DynamicArray in c++ builder - c++builder

Question

I'm using C++Builder XE4 with the VCL Win32 platform. I am tring to setup a method that will take a DynamicArray of TPoint as an argument. Below is from my .hpp file for a standard VCL Win32 Form. My declaration for CalcPolygonDetail() is generating the error message: "Error in module NewForm: Incorrect method declaration in class TForm3_cpp" The problem is the argument DynamicArray MyPoints, Can someone show how to setup this declaration correctly. Thanks.
#ifndef NewFormH
#define NewFormH
//----
#include <System.Classes.hpp>
#include <Vcl.Controls.hpp>
#include <Vcl.StdCtrls.hpp>
#include <Vcl.Forms.hpp>
#include "AdvSpin.hpp"
#include <Vcl.ComCtrls.hpp>
#include <Vcl.ExtCtrls.hpp>
#include <Vcl.Mask.hpp>
DynamicArray<TPoint> MyPoints;
//------------
class TForm3_cpp : public TForm
{
__published: // IDE-managed Components
TImage *Image1;
TLabel *Label2;
----break----
int __fastcall CalcPolygonDetail(DynamicArray<TPoint> MyPoints, bool UseScreenCoordinates );
.

Answer 1

This simple file compiles fine as a Console VCL App on XE5.
#include <vcl.h>
#include <windows.h>
#pragma hdrstop
#pragma argsused
#include <tchar.h>
#include <stdio.h>
DynamicArray<System::Types::TPoint> MyPoints;
void __fastcall TestFunction(DynamicArray<System::Types::TPoint> MyPoints2, bool SomeOtherParam)
{
// Do something with this.
MyPoints = MyPoints2;
}
int _tmain(int argc, _TCHAR* argv[])
{
DynamicArray<System::Types::TPoint> MyPoints3;
TestFunction(MyPoints3, true);
return 0;
}
Does this compiles fine for you? Maybe the problem lies somewhere else, because the DynamicArray definition seems correct. I would create a type instead:
typedef DynamicArray<System::Types::TPoint> TMyPoints;
Specially if you are going to use that kind of arrays in your code more than once. But as the example shows, even without this it should work.