C#如何电脑本地的打印机
时间: 2024-10-19 20:04:45 浏览: 65
在C#中,如果你想要操作电脑本地的打印机,首先需要获取一个`PrintQueue`对象,这通常对应于计算机上的一台具体的打印机。以下是获取并使用本地打印机的基本步骤:
1. 引入必要的命名空间:
```csharp
using System;
using System.Printing;
```
2. 获取本地打印机列表:
```csharp
PrintQueueCollection printQueues = PrintQueue.GetPrintQueues();
foreach (PrintQueue queue in printQueues)
{
if (queue.IsLocal)
{
// 这里找到的是本地打印机
LocalPrinter localPrinter = queue as LocalPrinter;
string printerName = queue.Name; // 打印机名称
// ...
}
}
```
这里的`IsLocal`属性用于检查`PrintQueue`是否代表本地打印机。
3. 操作打印机,例如设置默认打印机:
```csharp
if (localPrinter != null)
{
bool success = localPrinter.SetAsDefault();
if (success)
{
Console.WriteLine($"已将 '{printerName}' 设置为默认打印机");
}
}
```
4. 创建并提交打印任务:
```csharp
// 假设你有一个Document对象
Document document = new Document();
PrintTicket ticket = new PrintTicket();
ticket.PrinterSettings CollateCopies = true; // 设置一些打印选项
try
{
PrintQueue.DefaultQueue.Print(document, ticket);
Console.WriteLine("打印任务已成功提交");
}
catch (Exception ex)
{
Console.WriteLine($"打印任务出错: {ex.Message}");
}
```
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