/// <summary>
/// Retrieves information about the raw input device.
/// </summary>
/// <param name="hDevice">A handle to the raw input device. This comes from the <b>lParam</b> of the
/// <see cref="WM.INPUT">WM_INPUT</see> message, from the <see cref="RAWINPUTHEADER.hDevice">hDevice</see>
/// member of <see cref="RAWINPUTHEADER"/>, or from <see cref="GetRawInputDeviceList"/>. It can also be
/// <b>null</b> (IntPtr.Zero) if an application inserts input data, for example, by using <b>SendInput</b>.</param>
/// <returns>The information about the raw input device.</returns>
public static RID_DEVICE_INFO GetRawInputDeviceInfo(HANDLE hDevice)
{
uint size = (uint)Marshal.SizeOf(typeof(RID_DEVICE_INFO));
RID_DEVICE_INFO ret = new RID_DEVICE_INFO();
ret.cbSize = size;
uint err = GetRawInputDeviceInfo(hDevice, RIDI.DEVICEINFO, ref ret, ref size);
if (err == uint.MaxValue)
{
throw new Exception(string.Format("Error determining device information. (Error code: 0x{0:X8})", WinKernel.GetLastError()));
}
return(ret);
}
extern static uint GetRawInputDeviceInfo(HANDLE hDevice, RIDI uiCommand, ref RID_DEVICE_INFO pData, ref uint pcbSize);