C#Winfrom系统打印机调用/设置默认打印机

实现如下效果：

实现方式如下：

using System;
using System.Drawing.Printing;
using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace PISS.View.CustomControl
{
public partial class PrinterConfigMessBox : Form
{
#region 定义、构造、初始化
[DllImport("winspool.drv")]
//调用win api将指定名称的打印机设置为默认打印机
public static extern bool SetDefaultPrinter(String Name);
private static PrintDocument PrintDocument = new PrintDocument();
public string PrinterName { get; set; }

//获取本机默认打印机名称
public static String DefaultPrinter()
{
return PrintDocument.PrinterSettings.PrinterName;
}

public PrinterConfigMessBox(string message)
{
InitializeComponent();

this.lblMessage.Text = message;
}

private void PrinterConfigMessBox_Load(object sender, EventArgs e)
{
foreach (var item in PrinterSettings.InstalledPrinters)
{
this.tvList.Nodes.Add(item.ToString());
}
PrinterName = PrintDocument.PrinterSettings.PrinterName;

SetDefaultSelectNode();
}

/// <summary>
/// 设置默认选中项
/// </summary>
private void SetDefaultSelectNode()
{
foreach (TreeNode item in this.tvList.Nodes)
{
if (!item.Text.Equals(PrinterName)) continue;

this.tvList.SelectedNode = item;
break;
}
}

#endregion

#region event
private void btnPrint_Click(object sender, EventArgs e)
{
this.DialogResult = DialogResult.OK;
this.Close();
}

private void btnCancel_Click(object sender, EventArgs e)
{
this.DialogResult = DialogResult.Cancel;
this.Close();
}

private void tvList_AfterSelect(object sender, TreeViewEventArgs e)
{
PrinterName = this.tvList.SelectedNode.Text;
PrinterConfigMessBox.SetDefaultPrinter(PrinterName);
SetDefaultSelectNode();
}

#endregion

}
}