C#检测USB老鼠(罗技鼠标)

Question

我在这个网站上跟踪了几个关于在C#中检测鼠标状态的其他问题。我的第一个理解是鼠标检测并不简单。没有本地库可以这样做，这在我看来有点奇怪。但我想写一个小的重量轻的C#控制台应用程序，它最终将转换为一个窗口服务，以检测我的USB鼠标是否存在。

当我的鼠标出现在Windows 10中时，我一直试图找到禁用触控板的方法，而我所遵循的所有指南都不适合我，所以我决定为它构建自己的小程序。我不想使用nuget库来实现这一点，我想要一些小而简单的东西。

我有目前的代码块，但我只看到Elan设备，我相信这是我的触控板。

static async Task StartListenForMouseChangeAsync()
{
   await Task.Factory.StartNew(()=> {
          do
          {
             var mouse = new ManagementObjectSearcher("winmgmts:\\.\\root\\CIMV2");
                    mouse.Query = new ObjectQuery("SELECT * FROM Win32_PointingDevice");
             var data = mouse.Get();
             foreach (var obj in data)
             {
                foreach (var item in obj.Properties)
                {
                   Console.WriteLine($"{item.Name} -- {item.Value}");
                }
             }
             Thread.Sleep(5000);
             Console.Clear();
          } while (true);
       }, TaskCreationOptions.LongRunning);
}

样本输出：

Availability -- 
Caption -- HID-compliant mouse
ConfigManagerErrorCode -- 0
ConfigManagerUserConfig -- False
CreationClassName -- Win32_PointingDevice
Description -- HID-compliant mouse
DeviceID -- HID\VID_046D&PID_C231\2&AF07C4&0&0000
DeviceInterface -- 162
DoubleSpeedThreshold -- 
ErrorCleared -- 
ErrorDescription -- 
Handedness -- 
HardwareType -- HID-compliant mouse
InfFileName -- msmouse.inf
InfSection -- HID_Mouse_Inst.NT
InstallDate -- 
IsLocked -- 
LastErrorCode -- 
Manufacturer -- Microsoft
Name -- HID-compliant mouse
NumberOfButtons -- 0
PNPDeviceID -- HID\VID_046D&PID_C231\2&AF07C4&0&0000
PointingType -- 2
PowerManagementCapabilities -- 
PowerManagementSupported -- False
QuadSpeedThreshold -- 
Resolution -- 
SampleRate -- 
Status -- OK
StatusInfo -- 
Synch -- 
SystemCreationClassName -- Win32_ComputerSystem
SystemName -- MSI
Availability -- 
Caption -- ELAN Input Device
ConfigManagerErrorCode -- 0
ConfigManagerUserConfig -- False
CreationClassName -- Win32_PointingDevice
Description -- ELAN Input Device
DeviceID -- ACPI\ETD0306\4&1464EB1C&0
DeviceInterface -- 1
DoubleSpeedThreshold -- 
ErrorCleared -- 
ErrorDescription -- 
Handedness -- 
HardwareType -- ELAN Input Device
InfFileName -- oem22.inf
InfSection -- ETD_STD_Inst
InstallDate -- 
IsLocked -- 
LastErrorCode -- 
Manufacturer -- ELAN
Name -- ELAN Input Device
NumberOfButtons -- 0
PNPDeviceID -- ACPI\ETD0306\4&1464EB1C&0
PointingType -- 2
PowerManagementCapabilities -- 
PowerManagementSupported -- False
QuadSpeedThreshold -- 
Resolution -- 
SampleRate -- 
Status -- OK
StatusInfo -- 
Synch -- 
SystemCreationClassName -- Win32_ComputerSystem
SystemName -- MSI
Availability -- 
Caption -- USB Input Device
ConfigManagerErrorCode -- 0
ConfigManagerUserConfig -- False
CreationClassName -- Win32_PointingDevice
Description -- USB Input Device
DeviceID -- USB\VID_046D&PID_C24A&MI_00\6&2E5B0EB1&0&0000
DeviceInterface -- 162
DoubleSpeedThreshold -- 
ErrorCleared -- 
ErrorDescription -- 
Handedness -- 
HardwareType -- USB Input Device
InfFileName -- input.inf
InfSection -- HID_Inst.NT
InstallDate -- 
IsLocked -- 
LastErrorCode -- 
Manufacturer -- (Standard system devices)
Name -- USB Input Device
NumberOfButtons -- 0
PNPDeviceID -- USB\VID_046D&PID_C24A&MI_00\6&2E5B0EB1&0&0000
PointingType -- 2
PowerManagementCapabilities -- 
PowerManagementSupported -- False
QuadSpeedThreshold -- 
Resolution -- 
SampleRate -- 
Status -- OK
StatusInfo -- 
Synch -- 
SystemCreationClassName -- Win32_ComputerSystem
SystemName -- MSI

Answer 1

将代码更改为此解决了我的问题。

static async Task StartListenForMouseChangeAsync()
    {
     await Task.Factory.StartNew(()=> {
      do
        {
          Console.Title = "Scanning";
           var mouse = new ManagementObjectSearcher($"winmgmts:\\.\\root\\CIMV2");
            mouse.Query = new ObjectQuery("SELECT * FROM Win32_PointingDevice");
            var data = mouse.Get();
            var states = new Boolean[data.Count];
            var props = new List<ManagementBaseObject>();
              foreach (var item in data)
                {
                  props.Add(item);
                }
                for (int i = 0; i < data.Count; i++)
                    {
                        states[i] = props[i].Properties["DeviceID"].Value.ToString().StartsWith("USB");
                    }

                    var hasUsbMouse = states.Contains(true);

                    Console.Title = $"Mouse Status: {hasUsbMouse}";

                    Thread.Sleep(5000);
                    Console.Clear();
                } while (true);

            }, TaskCreationOptions.LongRunning);
        }