HP PCL PCL5 打印

• 下载源代码 - 8 KB

引言

通过这段代码，你可以使用 WIN32 API 调用直接打印到打印机，从而应该能够以最大速度打印。此外，代码还展示了如何将惠普 PCL5 代码发送到打印机。

Using the Code

• 在你的项目中添加一个窗体。
• 在窗体中添加一个按钮。
• 将按钮的 Name 属性更改为 btnString。
• 在窗体中添加另一个按钮。
• 将按钮的 Name 属性更改为 btnSquare。
• 为按钮编写以下代码

  private void btnString_Click(object sender, System.EventArgs e) 
  {
     //PCL5 Commands to print a string 
     string st1 = "Printing a string test."; 
     Printing.DirectPrinter.SendToPrinter ("Printing a string",st1,
               "\\\\192.168.1.101\\hpl"); 
  } 
  
  private void btnSquare_Click(object sender, System.EventArgs e) 
  { 
     // PCL5 Commands to print a square 
     // Moves the cursor 900 dots (3 inches at 300 dpi) in from the 
     // left margin, and 600 dots (2 inches at 300 dpi) down from 
     // the top margin. 
     string st1="*p900x600Y"; 
     // Using the print model commands for rectangle dimensions, 
     // "600a" specifies a rectangle with a horizontal size 
     // or width of 600 dots, and "6b" specifies 
     // a vertical size or height of 6 dots. The 0P selects the solid black 
     // rectangular area fill. 
     st1+="*c600a6b0P"; 
     // Specifies a rectangle with width of 6 dots, height of 600 dots, and a 
     // fill pattern of solid black. 
     st1+="*c6a600b0P"; 
     // Moves the current cursor position to 900 dots, from the left margin and 
     // 1200 dots down from the top margin. 
     st1+="*p900x1200Y"; 
     // Specifies a rectangle with a width of 606 dots, a height of 6 dots and a 
     // fill pattern of solid black. 
     st1+="*c606a6b0P"; 
     // Moves the current cursor position to 1500 dots from the left margin and 
     // 600 dots down from the top margin. 
     st1+="*p1500x600Y"; 
     // Specifies a rectangle with a width of 6 dots, a height of 600 dots and a 
     // fill pattern of solid black. 
     st1+="*c6a600b0P"; 
     // Send a form feed character to the printer 
     st1+="\f"; 
     Printing.DirectPrinter.SendToPrinter ("Printing a square",st1,
                "\\\\192.168.1.101\\hpl"); 
  }

  现在

• 在项目中添加一个名为 DirectPrinter.cs 的新类。

  // This code is based on a sample Written 17th October 2002 By <a href="mailto:csharpconsulting@hotmail.com">J O'Donnell</a>
  // Adapted from Microsoft Support article Q298141 using System; 
  //For PCL5
  using System.Text;
  using System.Runtime.InteropServices; 
  [StructLayout( LayoutKind.Sequential)] 
  public struct DOCINFO 
  { 
    [MarshalAs(UnmanagedType.LPWStr)] public stringpDocName;
    [MarshalAs(UnmanagedType.LPWStr)] public stringpOutputFile;
    [MarshalAs(UnmanagedType.LPWStr)] public string pDataType; 
  }
  namespace Printing 
  { 
    public class DirectPrinter 
    { 
      public DirectPrinter() 
      {
        //
        // TODO: Add constructor logic here 
        // 
      } 
      [ DllImport( "winspool.drv",CharSet=CharSet.Unicode,ExactSpelling=false, 
                     CallingConvention=CallingConvention.StdCall )] 
      public static extern long OpenPrinter(string pPrinterName,
                     ref IntPtr phPrinter, int pDefault);
      [ DllImport( "winspool.drv",CharSet=CharSet.Unicode,ExactSpelling=false, 
                     CallingConvention=CallingConvention.StdCall )] 
      public static extern long StartDocPrinter(IntPtr hPrinter, 
                     int Level, ref DOCINFO pDocInfo); 
      [ DllImport( "winspool.drv",CharSet=CharSet.Unicode,ExactSpelling=true, 
                     CallingConvention=CallingConvention.StdCall)] 
      public static extern long StartPagePrinter(IntPtr hPrinter); 
      [ DllImport( "winspool.drv",CharSet=CharSet.Ansi,ExactSpelling=true, 
                     CallingConvention=CallingConvention.StdCall)] 
      public static extern long WritePrinter(IntPtr hPrinter,string data, 
                     int buf,ref int pcWritten); 
      [ DllImport( "winspool.drv" ,CharSet=CharSet.Unicode,ExactSpelling=true, 
                     CallingConvention=CallingConvention.StdCall)] 
      public static extern long EndPagePrinter(IntPtr hPrinter); 
      [ DllImport( "winspool.drv" ,CharSet=CharSet.Unicode,ExactSpelling=true, 
                     CallingConvention=CallingConvention.StdCall)] 
      public static extern long EndDocPrinter(IntPtr hPrinter); 
      [ DllImport( "winspool.drv",CharSet=CharSet.Unicode,ExactSpelling=true, 
                     CallingConvention=CallingConvention.StdCall )] 
      public static extern long ClosePrinter(IntPtr hPrinter); 
  
      public static void SendToPrinter(string jobName, 
                     string PCL5Commands, string printerName) 
      { 
        System.IntPtr lhPrinter=new System.IntPtr();
        DOCINFO di = new DOCINFO(); 
        int pcWritten=0; 
        di.pDocName=jobName; 
        di.pDataType="RAW"; 
        //lhPrinter contains the handle for the printer opened 
        //If lhPrinter is 0 then an error has occurred 
        // This code assumes you have a printer at share \\192.168.1.101\hpl 
        // This code sends Hewlett Packard PCL5 codes to the printer 
        //OpenPrinter("\\\\192.168.1.101\\hpl",ref lhPrinter,0); 
        OpenPrinter(printerName,ref lhPrinter,0); 
        StartDocPrinter(lhPrinter,1,ref di); 
        StartPagePrinter(lhPrinter); 
        WritePrinter(lhPrinter,PCL5Commands,PCL5Commands.Length,ref pcWritten); 
        EndPagePrinter(lhPrinter); 
        EndDocPrinter(lhPrinter); 
        ClosePrinter(lhPrinter); 
      } 
    } 
  }

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历史

• 版本 1.0 - 初始发布

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