Увеличение размеров компонентов пропорционально увеличению размеров формы

//---------------------------------------------------------------------------
 
#include <vcl.h>
#pragma hdrstop
 
#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
 
int g_iStartFormWidth;
int g_iStartFormHeight;
 
int g_iControlWidth[50];
int g_iControlHeight[50];
int g_iControlLeft[50];
int g_iControlTop[50];
 
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
        g_iStartFormWidth = ClientWidth;
        g_iStartFormHeight = ClientHeight;
 
        int count = Form1->ComponentCount;
        TControl *control;
 
        for ( int i = 0; i < count; i++ )
        {
                control = (TControl *)Components[i];
 
                g_iControlWidth[i] = control->Width;
                g_iControlHeight[i] = control->Height;
                g_iControlLeft[i] = control->Left;
                g_iControlTop[i] = control->Top;
        }
}
//---------------------------------------------------------------------------
 
 
void __fastcall TForm1::FormResize(TObject *Sender)
{
        int count = Form1->ComponentCount;
 
        for ( int i = 0; i < count; i++ )
        {
                ((TControl *)Components[i])->Left = g_iControlLeft[i] * ( (double)ClientWidth / g_iStartFormWidth );
                ((TControl *)Components[i])->Width = g_iControlWidth[i] * ( (double)ClientWidth / g_iStartFormWidth );
                ((TControl *)Components[i])->Height = g_iControlHeight[i] * ( (double)ClientHeight / g_iStartFormHeight );
                ((TControl *)Components[i])->Top = g_iControlTop[i] * ( (double)ClientHeight / g_iStartFormHeight );
        }
}
//---------------------------------------------------------------------------

TControl *CurControl = dynamic_cast<TControl *>(Components[i]);
if (CurControl) {
      // используем CurControl
}