ShowPolarDlg example for C++ Builder

void __fastcall TForm1::ShowPolarDlg1Click(TObject *Sender) 
{
   L_INT nRet; 
   LEADDlgImgEffect1->PolarFlags = FILL_CLR | CART_TO_POL; 
   LEADDlgImgEffect1->FillColor = RGB ( 0, 0, 220 ); 
   LEADDlgImgEffect1->DlgFlags = DLG_POLAR_SHOW_PREVIEW |
                        DLG_POLAR_SHOW_TOOL_ZOOMLEVEL; 

   LEADDlgImgEffect1->LEADImage = LEADImage1; 

   nRet= LEADDlgImgEffect1->ShowPolarDlg ( this ); 
   if ( nRet == SUCCESS_DLG_OK ) 
   {
      LEADImage1->Polar (LEADDlgImgEffect1->FillColor, 
                         LEADDlgImgEffect1->PolarFlags ); 

   }
}