ShowGaussianBlurDlg example for Delphi

procedure TForm1.ShowGaussianBlurDlg1Click(Sender: TObject); 
var
   nRet: L_INT; 
begin
   LEADDlgImgEffect1.Radius:= 5; 
   LEADDlgImgEffect1.DlgFlags:= DLG_GAUSSIANBLUR_SHOW_PREVIEW Or
                           DLG_GAUSSIANBLUR_SHOW_TOOL_ZOOMLEVEL; 

   LEADDlgImgEffect1.LEADImage:= LEADImage1; 

   nRet:= LEADDlgImgEffect1.ShowGaussianBlurDlg ( Self ); 
   if ( nRet = SUCCESS_DLG_OK ) then
   begin
      LEADImage1.GaussianFilter ( LEADDlgImgEffect1.Radius ); 
   end; 
end;