/*
* 删除指定的usb虚拟串口
* 输入值： 设备管理器下的设备名称，不包括后面的(COMXX)
* 返回值： 成功/失败
*/
/*!!!BUG: 删除port后重新扫描，port number会加一；插拔或者通过设备管理器Uninstall port没有这个问题。!!!*/
public static bool DeletePort(String portName = null)
{
bool ret = false;
Guid classGuid = Guid.Empty;
IntPtr hDevInfo = Win32.SetupDiGetClassDevs(ref classGuid, null, IntPtr.Zero, Win32.DIGCF_ALLCLASSES | Win32.DIGCF_PRESENT);
if (hDevInfo.ToInt32() == Win32.INVALID_HANDLE_VALUE)
{
Console.WriteLine("访问硬件设备失败");
}
else
{
int i = 0;
int selected = 0;
StringBuilder deviceName = new StringBuilder();
deviceName.Capacity = Win32.MAX_DEV_LEN;
do
{
UsbRemoveHidden.Win32.SP_DEVINFO_DATA devInfoData = new UsbRemoveHidden.Win32.SP_DEVINFO_DATA();
StringBuilder _DeviceName = new StringBuilder("");
_DeviceName.Capacity = 1000;
devInfoData.cbSize = Marshal.SizeOf(typeof(UsbRemoveHidden.Win32.SP_DEVINFO_DATA));
devInfoData.classGuid = Guid.Empty;
devInfoData.devInst = 0;
devInfoData.reserved = IntPtr.Zero;
bool result = Win32.SetupDiEnumDeviceInfo(hDevInfo, i, devInfoData);
if (false == result)
{
break;
}
Win32.SetupDiGetDeviceRegistryProperty(hDevInfo, devInfoData, 0, 0, _DeviceName, (uint)_DeviceName.Capacity, IntPtr.Zero);
if (_DeviceName.ToString().Equals(portName))
{
Debug.WriteLine("Log.Level.Operation," + _DeviceName.ToString() + ":" + Win32.GetDeviceInstanceId(hDevInfo, devInfoData).ToString());
selected = i;
}
++i;
} while (true);
ret = Win32.Remove(selected, hDevInfo);
}
Win32.SetupDiDestroyDeviceInfoList(hDevInfo);
return(ret);
}
public static bool Remove(int SelectedItem, IntPtr DevInfo)
{
bool result = false;
UsbRemoveHidden.Win32.SP_DEVINFO_DATA devInfoData = new UsbRemoveHidden.Win32.SP_DEVINFO_DATA();
devInfoData.cbSize = Marshal.SizeOf(typeof(SP_DEVINFO_DATA));
if (true == SetupDiEnumDeviceInfo(DevInfo, SelectedItem, devInfoData))
{
if (true == SetupDiCallClassInstaller(Win32.DIF_REMOVE, DevInfo, devInfoData))
{
result = true;
}
else
{
uint ret = (uint)Win32.GetLastError();
System.Diagnostics.Debug.WriteLine("Operation, Remove Device failed(" + ret.ToString() + ")");
}
}
return(result);
}
