public partial class Form1 : Form
{        [System.Runtime.InteropServices.DllImportAttribute("winspool.drv", SetLastError = true)]        public extern static int DocumentProperties(        IntPtr hWnd, // handle to parent window        IntPtr hPrinter, // handle to printer object        string pDeviceName, // device name        ref IntPtr pDevModeOutput, // modified device mode        ref IntPtr pDevModeInput, // original device mode        int fMode); // mode options        [System.Runtime.InteropServices.DllImportAttribute("winspool.drv")]        public static extern int PrinterProperties(        IntPtr hwnd, // handle to parent window        IntPtr hPrinter); // handle to printer object        [System.Runtime.InteropServices.DllImportAttribute("winspool.drv", SetLastError = true)]        public extern static int OpenPrinter(        string pPrinterName, // printer name        ref IntPtr hPrinter, // handle to printer object        ref IntPtr pDefault); // handle to default printer object.        [System.Runtime.InteropServices.DllImportAttribute("winspool.drv", SetLastError = true)]        public static extern int ClosePrinter(        IntPtr phPrinter); // handle to printer object        public Form1()        {            InitializeComponent();        }        
        /// <summary>
        /// 调用API打开打印机属性窗口
        /// </summary>
        private void button1_Click(object sender, EventArgs e)        {            string printerName = "ZEBRA R110Xi4 300DPI";            if (printerName != null && printerName.Length > 0)            {                IntPtr pPrinter = IntPtr.Zero;                IntPtr pDevModeOutput = IntPtr.Zero;                IntPtr pDevModeInput = IntPtr.Zero;                IntPtr nullPointer = IntPtr.Zero;                OpenPrinter(printerName, ref pPrinter, ref nullPointer);                int iNeeded = PrinterProperties(this.Handle, pPrinter);                ClosePrinter(pPrinter);            }        }        
        ///<summary>
        ///调用API打开Document property窗口
        ///</summary>        private void button2_Click(object sender, EventArgs e)        {            string printerName = "ZEBRA R110Xi4 300DPI";            if (printerName != null && printerName.Length > 0)            {                IntPtr pPrinter = IntPtr.Zero;                IntPtr pDevModeOutput = IntPtr.Zero;                IntPtr pDevModeInput = IntPtr.Zero;                IntPtr nullPointer = IntPtr.Zero;                OpenPrinter(printerName, ref pPrinter, ref nullPointer);                int iNeeded = DocumentProperties(this.Handle, pPrinter, printerName, ref pDevModeOutput, ref pDevModeInput, 0);                pDevModeOutput = System.Runtime.InteropServices.Marshal.AllocHGlobal(iNeeded);                DocumentProperties(this.Handle, pPrinter, printerName, ref pDevModeOutput, ref pDevModeInput, 14);                ClosePrinter(pPrinter);            }        }    }