public void OpenDevice(DeviceMode readMode, DeviceMode writeMode, ShareMode shareMode)
{
if (IsOpen)
{
return;
}
_deviceReadMode = readMode;
_deviceWriteMode = writeMode;
_deviceShareMode = shareMode;
try
{
ReadHandle = OpenDeviceIO(_devicePath, readMode, NativeMethods.GENERIC_READ, shareMode);
WriteHandle = OpenDeviceIO(_devicePath, writeMode, NativeMethods.GENERIC_WRITE, shareMode);
}
catch (Exception exception)
{
IsOpen = false;
throw new Exception("Error opening HID device.", exception);
}
IsOpen = (ReadHandle.ToInt32() != NativeMethods.INVALID_HANDLE_VALUE &&
WriteHandle.ToInt32() != NativeMethods.INVALID_HANDLE_VALUE);
}
public void OpenDevice()
{
if (IsOpen)
{
return;
}
try
{
ReadHandle = OpenDeviceIO(this.DevicePath, DeviceMode.NonOverlapped, Native.GENERIC_READ);
WriteHandle = OpenDeviceIO(this.DevicePath, DeviceMode.NonOverlapped, Native.GENERIC_WRITE);
ReadAsyncHandle = OpenDeviceIO(this.DevicePath, DeviceMode.Overlapped, Native.GENERIC_READ);
WriteAsyncHandle = OpenDeviceIO(this.DevicePath, DeviceMode.Overlapped, Native.GENERIC_WRITE);
}
catch (Exception exception)
{
IsOpen = false;
throw new Exception("Error opening HID device.", exception);
}
IsOpen = ReadHandle.ToInt32() != Native.INVALID_HANDLE_VALUE & WriteHandle.ToInt32() != Native.INVALID_HANDLE_VALUE;
}