public static TimeSpan GetTimeSinceLastInput()
{
// Get the system uptime
int systemUptime = Environment.TickCount;
// The MilliSecond at which the last input was recorded
int LastInputMilli = 0;
// The number of MilliSeconds that passed since last input
int IdleMilli = 0;
// Set the struct
Interop.LASTINPUTINFO LastInputInfo = new Interop.LASTINPUTINFO();
LastInputInfo.cbSize = (uint)Marshal.SizeOf(LastInputInfo);
LastInputInfo.dwTime = 0;
// If we have a value from the function
if (GetLastInputInfo(ref LastInputInfo))
{
// Get the number of MilliSeconds at the point when the last activity was seen
LastInputMilli = (int)LastInputInfo.dwTime;
// Number of idle MilliSeconds = system uptime MilliSeconds - number of MilliSeconds at last input
IdleMilli = systemUptime - LastInputMilli;
return(TimeSpan.FromMilliseconds(IdleMilli));
}
return(TimeSpan.FromMilliseconds(0));
}
public static TimeSpan GetTimeSinceLastInput()
{
// Get the system uptime
int systemUptime = Environment.TickCount;
// The MilliSecond at which the last input was recorded
int LastInputMilli = 0;
// The number of MilliSeconds that passed since last input
int IdleMilli = 0;
// Set the struct
Interop.LASTINPUTINFO LastInputInfo = new Interop.LASTINPUTINFO();
LastInputInfo.cbSize = (uint)Marshal.SizeOf(LastInputInfo);
LastInputInfo.dwTime = 0;
// If we have a value from the function
if (GetLastInputInfo(ref LastInputInfo))
{
// Get the number of MilliSeconds at the point when the last activity was seen
LastInputMilli = (int)LastInputInfo.dwTime;
// Number of idle MilliSeconds = system uptime MilliSeconds - number of MilliSeconds at last input
IdleMilli = systemUptime - LastInputMilli;
return TimeSpan.FromMilliseconds(IdleMilli);
}
return TimeSpan.FromMilliseconds(0);
}