check, how long the system is Idle? function LastInput: DWord; var LInput: TLastInputInfo; begin LInput.cbSize := SizeOf(TLastInputInfo); GetLastInputInfo(LInput); Result := GetTickCount - LInput.dwTime; end; //Example: procedure TForm1.Timer1Timer(Sender: TObject); begin Label1.Caption := Format('System Idle since %d ms', [LastInput]); end;
var
LInput: TLastInputInfo;
begin
LInput.cbSize := SizeOf(TLastInputInfo);
GetLastInputInfo(LInput);
Result := GetTickCount - LInput.dwTime;
end;
//Example:
procedure TForm1.Timer1Timer(Sender: TObject);
begin
Label1.Caption := Format('System Idle since %d ms', [LastInput]);
end;