Как сдвинуть стрелку на индикторе ILANgularGauge с помощью ScrollBar?

//---------------------------------------------------------------------------
 
#include <vcl.h>
#pragma hdrstop
 
#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma link "ILAnalogInstrument"
#pragma link "ILAngularGauge"
#pragma link "LPControl"
#pragma link "LPControlDrawLayers"
#pragma link "LPTransparentControl"
#pragma link "SLControlCollection"
#pragma link "SLScope"
#pragma link "ULBasicControl"
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
 
void __fastcall TForm1::ScrollBar1Change(TObject *Sender)
{
          this->ILAngularGauge1->Value = ScrollBar1->Position;
          this->SLScope1->Channels->Channels [0] ->???
}
//---------------------------------------------------------------------------