C#中通过API实现的打印类 实例代码
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2020-09-05
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C#中通过中通过API实现的打印类实现的打印类 实例代码实例代码
介绍了，C#中通过API实现的打印类 实例代码，有需要的朋友可以参考一下
复制代码 代码如下:
using System;
using System.Collections;
using System.Text;
using System.Runtime.InteropServices;
using System.Security;
using System.ComponentModel;
using System.Drawing.Printing;
namespace PrinterAPI
{
public class Printer
{
private Printer()
{
}
///泥人张版本加强版
#region API声明
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
internal struct structPrinterDefaults
{
[MarshalAs(UnmanagedType.LPTStr)]
public String pDatatype;
public IntPtr pDevMode;
[MarshalAs(UnmanagedType.I4)]
public int DesiredAccess;
};
[DllImport("winspool.Drv", EntryPoint = "OpenPrinter", SetLastError = true,
CharSet = CharSet.Unicode, ExactSpelling = false, CallingConvention = CallingConvention.StdCall),
SuppressUnmanagedCodeSecurityAttribute()]
internal static extern bool OpenPrinter([MarshalAs(UnmanagedType.LPTStr)]
string printerName,
out IntPtr phPrinter,
ref structPrinterDefaults pd);
[DllImport("winspool.Drv", EntryPoint = "ClosePrinter", SetLastError = true,
CharSet = CharSet.Unicode, ExactSpelling = false,
CallingConvention = CallingConvention.StdCall), SuppressUnmanagedCodeSecurityAttribute()]
internal static extern bool ClosePrinter(IntPtr phPrinter);
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
internal struct structSize
{
public Int32 width;
public Int32 height;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
internal struct structRect
{
public Int32 left;
public Int32 top;
public Int32 right;
public Int32 bottom;
}
[StructLayout(LayoutKind.Explicit, CharSet = CharSet.Unicode)]
internal struct FormInfo1
{
[FieldOffset(0), MarshalAs(UnmanagedType.I4)]
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