try
    		{
    			using(FileStream fs = new FileStream(path, FileMode.Create))
    			{
		    		XmlSerializer xs = new XmlSerializer(typeof(PrinterSettings));
		    		xs.Serialize(fs, settings);
    			}
    		}
    		catch(Exception ex)
    		{
    			MessageBox.Show("WriteSettings \n" + ex.Message);
    			if(ex.InnerException != null)
    			{
    				MessageBox.Show(ex.InnerException.Message);
    			}
    		}

namespace BarPrinter
{
	public class PrinterSettings
	{
		public PrinterSettings()
		{
			label_width = 30;
			label_height = 20;
			dx = 0;
			dy = 0;
			printer = "";
			this.invert = true;
			this.darkness = 0;			
		}
		
		public PrinterSettings(int _w, int _h, int _dx, int _dy, string _printer, bool _invert, int _darkness)
		{
			this.label_width = _w;
			this.label_height = _h;
			this.dx = _dx;
			this.dy = _dy;
			this.printer = _printer;			
			this.invert = _invert;
			this.darkness = _darkness;
		}
		
		public int GetCalcX(int x)
		{
			return ((x*label_width/100) + dx) * 8;
		}
		
		public int GetCalcY(int y)
		{
			return ((y*label_height/100) + dy) * 8;
		}

		public int GetCalcWidth(int w)
		{
			return (w*label_width/100) * 8;
		}

		public int GetCalcHeight(int h)
		{
			return (h*label_height/100) * 8;
		}
		
		public int label_width;
		public int label_height;
		public int dx;
		public int dy;
		public string printer;
		public int darkness;
		public bool invert;
	}
}

    <Reference Include="System" />
    <Reference Include="System.Drawing" />
    <Reference Include="System.Windows.Forms" />
    <Reference Include="System.Xml" />