C # Judgment System Idle (keyboard, mouse does not operate for some time)

Use Windows API function Getlastinputinfo () to determine system idle

Add reference using System.Runtime.InteropServices;

1   //create struct to return capture time2 [StructLayout (layoutkind.sequential)]3   structLastinputinfo4   {5   //set structure block capacity6 [MarshalAs (UNMANAGEDTYPE.U4)]7    Public intcbsize;8   //Time of Capture9 [MarshalAs (UNMANAGEDTYPE.U4)]Ten    Public UINTDwtime; One   } A[DllImport ("user32.dll")] -   Private Static extern BOOLGetlastinputinfo (reflastinputinfo plii); - //get keyboard and mouse time without action the   Private Static Longgetlastinputtime () -   { -Lastinputinfo Vlastinputinfo =Newlastinputinfo (); -Vlastinputinfo.cbsize =marshal.sizeof (vlastinputinfo); +   //Capture Time -   if(! Getlastinputinfo (refvlastinputinfo)) +        return 0; A   Else at      returnEnvironment.tickcount-(Long) Vlastinputinfo.dwtime; -}

C # Judgment System Idle (keyboard, mouse does not operate for some time)