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C#實現(xiàn)EPL?II格式打印與打印測試

 更新時間：2022年06月02日 08:32:45   作者：springsnow  
這篇文章介紹了C#實現(xiàn)EPL?II格式打印與打印測試的方法，文中通過示例代碼介紹的非常詳細。對大家的學習或工作具有一定的參考借鑒價值，需要的朋友可以參考下

一、EPL II 格式及打印測試

注意N命令前的換行和最后P1后的換行。將此段代碼復制到windows記事本里另存為Print.ext，文件名隨便，后綴為ext。然后通過cmd控制命令行輸入"copy c:\print.ext COM1”。然后就可以看到打印機開始打印了，效果不錯。

N
B300,5,0,1,2,3,40,N,"1234567891123"
A160,55,0,8,1,1,N,"ALP-122244444444"
b420,100,Q,"DATAdfdgdfgdf"
P1
  • 說明書上說N命令開始前要先輸入一行空白行，
    原文：Always send a Line Feed (LF) prior to the N command to ensure that previous data in the command buffer has cleared and the printer is in i tial ized and ready to ac cept com mands.
  • P命令之后也要加一個空白行，即回車，不然最后的P命令要打印的東西是不打印的，之前的P命令由于有后面的命令，間接等于換行了，所以會照打不誤。
  • 說明書上寫P命令是Pp1, [p2]，其參數(shù)p1是Number of label sets，而參數(shù)p2是Number of copies of each label (used in combination with counters to print multiple copies of the same label).
    但我試驗下來p1就是要打印的條碼的重復次數(shù)，而p2無論我怎么改寫都沒有變換，始終打印最后一個條碼。應(yīng)該是我哪里寫錯了。但是多用幾次P1，每次打一條還是可以起到同樣的打印多條條碼的效果的。

下面，給出我打印的條碼的例子：

N
B60,5,0,1,2,3,40,N,"1234567891123"
A60,55,0,8,1,1,N,"ALP-1"
P1
B60,5,0,1,2,3,40,N,"1234567890123"
A60,55,0,8,1,1,N,"ALP-2"
P1
B60,5,0,1,2,3,40,N,"1234567890123"
A60,55,0,8,1,1,N,"ALP-3"
P1

發(fā)送到打印機測試：

NET USE LPT1 /DELETE
NET USE LPT1 \\192.168.2.166\zetl /persistent:yes
copy c:\1.txt lpt1
copy c:\1.txt \\192.168.2.167\zetl

二、使用API發(fā)送內(nèi)容進行打?。?/h2> 
private void button1_Click_1(object sender, EventArgs e)
{
    string txt = textBox1.Text;
    LPTControl lpt = new LPTControl();
    //string cmd = System.IO.File.ReadAllText("zplII.txt");//zplII.txt里寫了條碼機的命令

    string cmd = Environment.NewLine + "N" + Environment.NewLine
    + "B60,5,0,1,2,3,40,N,\"1234567891123\"" + Environment.NewLine + "A60,55,0,8,1,1,N,\"ALP-5\"" + Environment.NewLine + "P1" + Environment.NewLine
    + "B60,5,0,1,2,3,40,N,\"1234567891123\"" + Environment.NewLine + "A60,55,0,8,1,1,N,\"ALP-6\"" + Environment.NewLine + "P1" + Environment.NewLine
    + "B60,5,0,1,2,3,40,N,\"1234567891123\"" + Environment.NewLine + "A60,55,0,8,1,1,N,\"ALP-7\"" + Environment.NewLine + "P1" + Environment.NewLine;
    
    if (!lpt.Open())
    {
        throw new Exception("未能連接打印機，請確認打印機是否安裝正確并接通電源。");
    }
    lpt.Write(cmd);
    if (!lpt.Close())
    {
        if (!lpt.Open())
        {
            throw new Exception("未能連接打印機，請確認打印機是否安裝正確并接通電源。");
        }
    }
}

public class LPTControl
{
    [StructLayout(LayoutKind.Sequential)]
    private struct OVERLAPPED
    {
        int Internal;
        int InternalHigh;
        int Offset;
        int OffSetHigh;
        int hEvent;
    }
    [DllImport("kernel32.dll")]
    private static extern int CreateFile(
    string lpFileName,
    uint dwDesiredAccess,
    int dwShareMode,
    int lpSecurityAttributes,
    int dwCreationDisposition,
    int dwFlagsAndAttributes,
    int hTemplateFile
    );

    [DllImport("kernel32.dll")]
    private static extern bool WriteFile(
    int hFile,
    byte[] lpBuffer,
    int nNumberOfBytesToWrite,
    out int lpNumberOfBytesWritten,
    out OVERLAPPED lpOverlapped
    );

    [DllImport("kernel32.dll")]
    private static extern bool CloseHandle(
    int hObject
    );

    private int iHandle;
    
    public bool Open()
    {
        iHandle = CreateFile("lpt1:", 0x40000000, 0, 0, 3, 0, 0);
        if (iHandle != -1)
        {
            return true;
        }
        else
        {
            return false;
        }
    }
    
    public bool Write(String Mystring)
    {

        if (iHandle != -1)
        {
            int i;
            OVERLAPPED x;
            byte[] mybyte = System.Text.Encoding.Default.GetBytes(Mystring);
            return WriteFile(iHandle, mybyte, mybyte.Length, out i, out x);
        }
        else
        {
            throw new Exception("端口未打開!");
        }
    }
    
    public bool Close()
    {
        return CloseHandle(iHandle);
    }
}

到此這篇關(guān)于C#實現(xiàn)EPL II格式打印與打印測試的文章就介紹到這了。希望對大家的學習有所幫助，也希望大家多多支持腳本之家。

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