如何在 C# 中扫描 COM 端口? [英] How to scan for COM ports in C#?

问题描述

C# 是否提供扫描可用 COM 端口的有效方法?我想在我的应用程序中有一个下拉列表，用户可以在其中选择检测到的 COM 端口之一.创建和填充下拉列表不是问题.我只需要知道如何使用 C# 扫描可用的 COM 端口.

Does C# provide an effective means of scanning the available COM ports? I would like to have a dropdown list in my application wherein the user can select one of the detected COM ports. Creating and populating the dropdown list is not a problem. I just need to know how to scan for the available COM ports using C#.

推荐答案

System.IO.Ports 是你想要的命名空间.

System.IO.Ports is the namespace you want.

SerialPort.GetPortNames列出所有串行 COM 端口.

SerialPort.GetPortNames will list all serial COM ports.

不幸的是，C# 不直接支持并行端口，因为它们很少使用，除非在传统情况下.也就是说，您可以通过查询以下注册表项来列出它们:

Unfortunately, parallel ports are not supported directly from C#, as they're very infrequently used except in legacy situations. That said, you can list them by querying the following registry key:

HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\PARALLEL PORTS

有关详细信息，请参阅 Microsoft.Win32 命名空间.

See the Microsoft.Win32 namespace for details.

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