问题
We want to activate a process if the user does not interact for 2 mins with our compact framework application running on our custom built devices.
I found an excellent C# sample code of Code Project(http://www.codeproject.com/KB/cs/ApplicationIdle.aspx) but it is not supported for compact framework as this code depends on Timers Class and Application.Idle events.
Can someone suggest me how to detect idle time?
回答1:
This blog entry is exactly what you need.
(Archived version: http://web.archive.org/web/20090615073146/http://blog.opennetcf.com/ctacke/2009/05/19/DetectingApplicationIdle.aspx)
回答2:
I haven't used the .NET Compact Framework in nearly 4 years, but maybe this is something that you could P/Invoke? Or maybe OpenNetCF have something for this in their library? (that one saved me a couple of times back in the days.) I just did a quick search over there and they do have a class for Timers, you might want to check it out and see if it can help: http://www.opennetcf.com/library/sdf/
回答3:
Differences Between the .NET Compact Framework and the .NET Framework:
Timers The Start and Stop methods for a
System.Timers.Timerobject are not supported, but you can start and stop timing by setting the Enabled property of aSystem.Windows.Forms.Timerobject to true or false.
You can also use System.Threading.Timer
Supported in: 3.5, 2.0, 1.0 .NET Compact Framework
You can use a Timer to detect idle activity like so: every time the user interacts with the application, reset a timer (that has an interval of say 5 minutes). If the Timer fires, then the application has been idle for 5 minutes.
来源：https://stackoverflow.com/questions/1471183/detecting-idle-time-in-net-compactframework-applications