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问题描述
是否有一种简单的方法可以以编程方式检查串行 COM 端口是否已打开/正在使用?
Is there an easy way of programmatically checking if a serial COM port is already open/being used?
通常我会使用:
try
{
// open port
}
catch (Exception ex)
{
// handle the exception
}
但是,我想以编程方式进行检查,以便尝试使用其他 COM 端口或类似的端口.
However, I would like to programatically check so I can attempt to use another COM port or some such.
推荐答案
前段时间我需要类似的东西来搜索设备.
I needed something similar some time ago, to search for a device.
我获得了可用 COM 端口的列表,然后简单地迭代它们,如果它没有引发异常,我尝试与设备通信.有点粗糙但工作.
I obtained a list of available COM ports and then simply iterated over them, if it didn't throw an exception i tried to communicate with the device. A bit rough but working.
var portNames = SerialPort.GetPortNames();
foreach(var port in portNames) {
//Try for every portName and break on the first working
}
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