static uint GetLastInputTime()
{
uint idleTime = 0;
LastInputInfo lastInputInfo = new LastInputInfo();
lastInputInfo.cbSize = (uint)Marshal.SizeOf(lastInputInfo);
lastInputInfo.dwTime = 0;
uint envTicks = (uint)Environment.TickCount;
if (GetLastInputInfo(ref lastInputInfo))
{
uint lastInputTick = lastInputInfo.dwTime;
idleTime = (envTicks - lastInputTick);
}
return((idleTime > 0) ? (idleTime / 1000) : idleTime);
}
private static extern bool GetLastInputInfo(ref LastInputInfo ptrInputInfo);