I have an application all done in WPF, using MvvM/Prism/Unity and Remote as datasource.
I need a basic thing that on win forms is really easy, just check if the app is iddle after few minutes , and if is idle, lock the app and show the login screen.
After some search on google I ´ve found one solution that uses DllImport and another using pure Wpf methods.
I don´t know I , after I implemented the Wpf way (pls check the code below) it only works after I login into the app , if I open and click in a simple texbox or hit a search, the idle method is not fired, looks like there is something hanged in the background that makes Wpf idle routine to think that it´s doing something when it´s not.
How can I check all the services/methods/etc.. that are in memory related to may app ? callstack doesn´t show to much for me. I am affraid that or I am not calling in the correct way the remote services or I implemented something wrong on the props PropChanged events/observablecollections/etc...
Is there a better way to do this using 100% Wpf structure ?
private void CheckIdleTime()
{
handler = delegate
{
DispatcherTimer timer = new DispatcherTimer();
timer.Interval = TimeSpan.FromSeconds(5);
timer.Tick += delegate
{
if (timer != null)
{
timer.Stop();
timer = null;
System.Windows.Interop.ComponentDispatcher.ThreadIdle -= handler;
Console.WriteLine("IDLE! Lets logoff!");
this.LockApplication();
Console.WriteLine("logoff fired");
System.Windows.Interop.ComponentDispatcher.ThreadIdle += handler;
}
};
timer.Start();
Dispatcher.CurrentDispatcher.Hooks.OperationPosted += delegate
{
if (timer != null)
{
timer.Stop();
timer = null;
}
};
};
ComponentDispatcher.ThreadIdle += handler;
}
