c# usb口 如何打开钱箱

Question

usb口可以斑马打印，钱箱如何能自已弹出.

Answer 1

是说收款机么？有商家提供的 API 吧

Answer 2

#region 打开钱箱
        /// <summary>
        /// 打开钱箱
        /// </summary>
        /// <param name="p_PrintName">打印机名称</param>
        /// <param name="p_Byte">指令</param>
        public static void openMoneyBox(string p_PrintName, byte[] p_Byte)
        {
            if (p_PrintName != null && p_PrintName.Length > 0)
            {
                IntPtr _PrintHandle;
                IntPtr _JobHandle = Marshal.AllocHGlobal(100);
                if (OpenPrinter(p_PrintName, out _PrintHandle, IntPtr.Zero))
                {
                    ADDJOB_INFO_1 _JobInfo = new ADDJOB_INFO_1();
                    int _Size;
                    AddJob(_PrintHandle, 1, _JobHandle, 100, out _Size);
                    _JobInfo = (ADDJOB_INFO_1)Marshal.PtrToStructure(_JobHandle, typeof(ADDJOB_INFO_1));
                    //System.IO.File.WriteAllBytes(p_PrintName, p_Byte);
                    System.IO.File.WriteAllBytes(_JobInfo.lpPath, p_Byte);                    ScheduleJob(_PrintHandle, _JobInfo.JobID);
                    ClosePrinter(_PrintHandle);
                    Marshal.FreeHGlobal(_JobHandle);
                }
            }
        }
        #endregion             string str = ((char)27).ToString() + "p" + ((char)0).ToString() + ((char)60).ToString() + ((char)255).ToString();
            byte[] data = System.Text.Encoding.Default.GetBytes(str);
            openMoneyBox(PrintName, data);str 是打开钱箱的指令.钱箱的品牌不同,指令有可能不同.