如何用c#操纵并口针式打印机打印？

参看
http://www.codeproject.com/csharp/prntjobcontrollerusingwmi.asp是否对你有帮助

Knight94(愚翁) ：
谢谢您的回复。但您提供的资料不是我想要的，这篇资料并没有操纵并口来打印。其实我是想让针式打印机实现POS打印机那样的功能，能够直接往并口上发打印指令。

PrinterSettings类不太好用，看看下面这个，或许对有帮助事实上我觉得直接用回API来控制打印机效果比较理想http://www.dwww.cn/new/200621720141098.html

用上面的方法取得打印机后
再配合WritePrinter来用，基本上就OK了^_^http://www.pinvoke.net/default.aspx/winspool.WritePrinter

楼主，问题解决了吗？我也遇到和你同样的问题了。找了好多资料都没有针对性。。
要是问题解决了麻烦告诉我怎么解决的。我的邮箱：[email protected]

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Drawing.Printing;
using System.Diagnostics;namespace PrintText
{
/// <summary>
/// Summary description for frmPrintText.
/// </summary>
public class frmPrintText : System.Windows.Forms.Form
{
        private System.Windows.Forms.Button cmdPrint;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
        private System.Windows.Forms.TextBox tbText;        private PrintDocument m_pd;
        private ArrayList m_al;        private Font font;        private float fTopMargin;
        private float fLeftMargin;
        private float fBottomMargin;
        private float fRightMargin;
        private float fPosition;
        private float fHeight;        private int m_nLineCount;
        private int m_nCurrentLine;
        private int m_nRowCount; public frmPrintText()
{
//
// Required for Windows Form Designer support
//
InitializeComponent(); //
// TODO: Add any constructor code after InitializeComponent call
//            m_pd = new PrintDocument();            m_pd.PrintPage += new PrintPageEventHandler(PrintPageHandler);            m_al = new ArrayList();            font = new Font("Courier New",12,FontStyle.Regular,GraphicsUnit.Pixel);            fTopMargin = 50;
            fLeftMargin = 0;
            fBottomMargin = (float)1037.5;
            fRightMargin = 800;
            fPosition = 0;
            fHeight = 0; } /// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
} #region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
            this.cmdPrint = new System.Windows.Forms.Button();
            this.tbText = new System.Windows.Forms.TextBox();
            this.SuspendLayout();
            //
            // cmdPrint
            //
            this.cmdPrint.Location = new System.Drawing.Point(16, 16);
            this.cmdPrint.Name = "cmdPrint";
            this.cmdPrint.TabIndex = 0;
            this.cmdPrint.Text = "&Print";
            this.cmdPrint.Click += new System.EventHandler(this.cmdPrint_Click);
            //
            // tbText
            //
            this.tbText.Location = new System.Drawing.Point(16, 48);
            this.tbText.MaxLength = 2000;
            this.tbText.Multiline = true;
            this.tbText.Name = "tbText";
            this.tbText.Size = new System.Drawing.Size(264, 208);
            this.tbText.TabIndex = 1;
            this.tbText.Text = "";
            //
            // frmPrintText
            //
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(292, 273);
            this.Controls.Add(this.tbText);
            this.Controls.Add(this.cmdPrint);
            this.Name = "frmPrintText";
            this.Text = "Print Text";
            this.ResumeLayout(false);        }
#endregion /// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new frmPrintText());
}        private void frmPrintText_Load(object sender, System.EventArgs e)
        {

        }

private void SplitUpText(string strText,int nMaxCount)
        {            int nLength = 0;
            int nWhereAt = 0;            char nChar;
            char[] characters = strText.ToCharArray();            string strCurrentLine = "";
            string strTrimmedText = "";
            string strCurrentWord = "";            int nWordLength = 0;            m_al.Clear();

            nLength = characters.Length;            while (nWhereAt < nLength)
            {                nChar = characters[nWhereAt];                if ((nChar == 32) || (nChar == '\r'))
                {                    strTrimmedText = strCurrentWord.Trim();
                    nWordLength = strTrimmedText.Length;// add to string here                    if ((strCurrentLine.Length + nWordLength + 1) > nMaxCount)
                    {                        m_al.Add(strCurrentLine);
                        strCurrentLine = strTrimmedText + " ";                    } // if ((strCurrentLine.Length + nWordLength + 1) > nMaxCount)
                    else
                    {                        strCurrentLine = strCurrentLine + strTrimmedText + " ";                    } // else (strCurrentLine.Length + nWordLength + 1) < nMaxCount                    strCurrentWord = "";                } // if ((nChar == 32) || (nChar == '\r'))
                else
                {                    if ((nChar != 10) && (nChar != 13))
                    {

                        strCurrentWord = strCurrentWord + nChar;

                    } // if ((nChar != 10) && (nChar != 13))                } // else nChar != 32 && nChar == '\r'                nWhereAt++;            } // while (nWhereAt < nLength)            if (strCurrentLine.Length > 0)
            {                strTrimmedText = strCurrentLine.Trim();
                m_al.Add(strTrimmedText);            } // if (strCurrentLine.Length > 0)        } // private void SplitUpText(string strText,int nMaxCount)        private void cmdPrint_Click(object sender, System.EventArgs e)
        {            PrintDialog pDlg = new PrintDialog();
            string strText = "";

            try
            {                strText = tbText.Text;
                if (strText.Length > 0)
                {                    SplitUpText(strText,80);                    m_nRowCount = m_al.Count;
                    m_nLineCount = 72;
                    m_nCurrentLine = 0;                    m_pd.DocumentName = "Print Text";
                    pDlg.Document = m_pd;
                    pDlg.ShowDialog();
                    m_pd.Print();                } // if (strText.Length > 0)
            }
            catch(Exception ex)
            {
                MessageBox.Show(this,ex.Message,"Print Text");
            } // catch(Exception ex)        } // private void cmdPrint_Click(object sender, System.EventArgs e)        private void PrintPageHandler(object sender, PrintPageEventArgs e)
        {            int nLinesPrinted = 0;
            string strLine = "";            while ((nLinesPrinted < m_nLineCount) && (m_nCurrentLine < m_nRowCount))
            {                strLine = m_al[m_nCurrentLine].ToString();                fHeight = font.GetHeight(e.Graphics);

                fPosition = fTopMargin + (nLinesPrinted * fHeight);                e.Graphics.DrawString(strLine,
                                      font,
                                      Brushes.Black,
                                      fLeftMargin,
                                      fPosition,
                                      new StringFormat());                m_nCurrentLine++;
                nLinesPrinted++;            } // while ((nLinesPrinted < m_nLineCount) && (m_nCurrentLine < m_nRowCount))            if (m_nCurrentLine < m_nRowCount)
                e.HasMorePages = true;
            else
                e.HasMorePages = false;        } // private void PrintPageHandler(object sender, PrintPageEventArgs e)    } // public class frmPrintText : System.Windows.Forms.Form} // namespace PrintText

我也在写POS系统，上面这个打印方式你改一下就可以用了。

调试易

如何用c#操纵并口针式打印机打印？

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