using System.Runtime.InteropServices;
using System.Text;

namespace POSV.Printer
{
    public class YkPosDll
    {
        /// <summary>
        /// 连接打印机设备
        /// </summary>
        /// <param name="iport">设备通信接口号，如COM1 - 1 COM2 - 2   如此类推</param>
        /// <param name="baud">波特率 9600 , 38400 , 115200</param>
        /// <returns>0 -- 成功   -1  --  失败</returns>
        [DllImport("YkPosdll.dll")]
        public static extern int YkOpenDevice(int iport , int baud);

        /// <summary>
        /// 断开打印设备
        /// </summary>
        /// <returns>0 -- 成功   -1  --  失败</returns>
        [DllImport("YkPosdll.dll")]
        public static extern int YkCloseDevice();

        /// <summary>
        /// 获取设备的操作句柄
        /// </summary>
        /// <returns></returns>
        [DllImport("YkPosdll.dll")]
        public static extern int YkGetDeviceHandle();

        /// <summary>
        /// 设备是否已经到连接计算机(仅支持USB口打印机)
        /// </summary>
        /// <returns>>0 -- 连接   -1  --  没有连接</returns>
        [DllImport("YkPosdll.dll")]
        public static extern int YkIsConnected();

        /// <summary>
        /// 初始化打印机 〈详见命令：ESC @〉
        /// </summary>
        /// <returns>0 -- 成功   -1  --  失败</returns>
        [DllImport("YkPosdll.dll")]
        public static extern int YkInitPrinter();

        /// <summary>
        /// 把将要打印的字符串送入打印机缓冲区(注: 达到满行时会自动打印出来)
        /// </summary>
        /// <param name="pstr">将要送打印机的字符串数据缓冲</param>
        /// <returns></returns>
        [DllImport("YkPosdll.dll" , CharSet = CharSet.Ansi , EntryPoint = "YkPrintStr" , CallingConvention = CallingConvention.StdCall)]
        public static extern int YkPrintStr([MarshalAs(UnmanagedType.LPStr)]StringBuilder pstr);

        
        [DllImport("YkPosdll.dll" , CharSet = CharSet.Ansi , EntryPoint = "YkPrintRasterBmp" , CallingConvention = CallingConvention.StdCall)]
        public static extern int YkPrintRasterBmp(string bmpfile);


        [DllImport("YkPosdll.dll" , CharSet = CharSet.Ansi , EntryPoint = "YkDownloadBitmapAndPrint" , CallingConvention = CallingConvention.StdCall)]
        public static extern int YkDownloadBitmapAndPrint(string bmpfile,int m);


        /// <summary>
        /// 打印并换行，走纸到下一行首〈详见命令：LF〉
        /// </summary>
        /// <returns></returns>
        [DllImport("YkPosdll.dll")]
        public static extern int YkFeedPaper();

        /// <summary>
        /// 获取打印机状态,   〈详见命令：DLE EOT  n〉
        /// </summary>
        /// <param name="n">n = 1~5 </param>
        /// <returns>0 -- 成功   -1  --  失败</returns>
        [DllImport("YkPosdll.dll")]
        public static extern int YkGetStatus(byte n);

        [DllImport("YkPosdll.dll")]
        public static extern int YkGetPrinterStatus(byte n);

        /// <summary>
        /// 执行切纸动作，包括进纸    〈详见命令：GS V m〉
        /// </summary>
        /// <param name="m">m=66 n:打印机进纸到(切纸位置+ [n × 0.125 毫米{0.0049英寸}])并切纸</param>
        /// <param name="n">一般n=0</param>
        /// <returns>0 -- 成功   -1  --  失败</returns>
        [DllImport("YkPosdll.dll")]
        public static extern int YkCutPaper(int m , int n);

        /// <summary>
        /// 设置钱箱驱动方式    〈详见命令： ESC p m t1 t2〉
        /// </summary>
        /// <param name="m">使用那个管脚输出脉冲  m=0  2脚  m=1  5脚    脉冲宽度为 t1*2ms t2*2ms ，其中要求 t1 < t2 ，一般 t1=150 t2=250</param>
        /// <param name="t1"></param>
        /// <param name="t2"></param>
        /// <returns></returns>
        [DllImport("YkPosdll.dll")]
        public static extern int YkSetCashBoxDriveMode(int m , int t1 , int t2);
    }
}