ShowAddNoiseDlg example for C++ Builder

void __fastcall TForm1::ShowAddNoiseDlg1Click(TObject *Sender) 
{
   L_INT nRet; 
   LEADDlgImgEffect1->Channel = CHANNEL_MASTER; 
   LEADDlgImgEffect1->DlgFlags = DLG_ADDNOISE_SHOW_PREVIEW |
                                DLG_ADDNOISE_SHOW_TOOL_ZOOMLEVEL; 

   LEADDlgImgEffect1->LEADImage = LEADImage1; 

   nRet= LEADDlgImgEffect1->ShowAddNoiseDlg ( this ); 
   if ( nRet == SUCCESS_DLG_OK ) 
   {
      LEADImage1->AddNoise ( LEADDlgImgEffect1->Range, 
                LEADDlgImgEffect1->Channel ); 
   }
}