/// <summary>
/// Get the Last input time in ticks
/// </summary>
/// <returns></returns>
public static long GetLastInputTimeInTicks()
{
NativeMethods.LASTINPUTINFO lastInPut = new NativeMethods.LASTINPUTINFO();
lastInPut.cbSize = (uint)System.Runtime.InteropServices.Marshal.SizeOf(lastInPut);
if (!NativeMethods.GetLastInputInfo(ref lastInPut))
{
throw new Exception(NativeMethods.GetLastError().ToString());
}
return(lastInPut.dwTime);
}