C++Builder dynamic events from DLL

Hello to every body.

I want to make a DLL with a dynamic Form inside, this Form must contains a dynamic TButton and this one must have an OnClick event, dynamic too.
How I can achieve that?

I had created a dynamic Form with all mentioned before, but It comes from a clasic OnClick event from a Button inside a clasic Form, I mean, this Form clasic is not dynamic.
This is my code:

Code:

//Unit1.cpp
//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop
#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
TForm *MyDynamicForm;
TButton *MyDynamicButton;

//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
	: TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
   MyDynamicForm = new  TForm(Owner);
   MyDynamicForm->Height = 240;
   MyDynamicForm->Width = 480;
   MyDynamicForm->Caption = "My Dynamic Form";

   MyDynamicButton = new TButton(MyDynamicForm);
   MyDynamicButton->Parent = MyDynamicForm;
   MyDynamicButton->Caption = "My Button";
   MyDynamicButton->Left= 80;
   MyDynamicButton->Top = 30;
   MyDynamicButton->OnClick = MyFunction;

   MyDynamicForm->ShowModal();
}
//---------------------------------------------------------------------------
 void __fastcall TForm1::MyFucntion(TObject *Sender)
 {
   ShowMessage("This is a Dynamic OnClick Event");
 }

Code:

//----------------------------------------------------------------------------
//Unit1.h

//---------------------------------------------------------------------------

#ifndef Unit1H
#define Unit1H
//---------------------------------------------------------------------------
#include <Classes.hpp>
#include <Controls.hpp>
#include <StdCtrls.hpp>
#include <Forms.hpp>
//---------------------------------------------------------------------------
class TForm1 : public TForm
{
__published:	// IDE-managed Components
	TButton *Button1;
	void __fastcall Button1Click(TObject *Sender);
private:	// User declarations
public:		// User declarations
	__fastcall TForm1(TComponent* Owner);
	void __fastcall MyFunction(TObject *Sender);
};
//---------------------------------------------------------------------------
extern PACKAGE TForm1 *Form1;
//---------------------------------------------------------------------------
#endif

All before working perfectly. But if MyFunction not belong to a Form class,this event don't will work.Why?? Exist a way to achieve this?? Which one??
I was thinking that the event problem is that this one must belong to a Form Class, but my dll don't have one. So, how I can to build a Form class inside my dll?
I know that a function definition inside a Dll is like this:

extern "C" __declspec(dllexport) __fastcall void MyFunction(TObject *Sender);

But that don't working when I try to use as an event. I mean:

MyDynamicButton->OnClick = MyFunction; // but MyFunction is not a Form class member.

How I can to convert MyFunction in an event and then use it in my dynamic button??

Thanks and sorry for my bad English, I am a Cuban.

Míchal