public object StartTimer(TimeSpan interval, Action callback)
{
UnmanagedMethods.TimerProc timerDelegate = (UnmanagedMethods.TimerProc)
((hWnd, uMsg, nIDEvent, dwTime) => callback());
IntPtr handle = UnmanagedMethods.SetTimer(
IntPtr.Zero,
IntPtr.Zero,
(uint)interval.TotalMilliseconds,
timerDelegate);
this.timerCallbacks.Add(handle, timerDelegate);
return(handle);
}
public IDisposable StartTimer(DispatcherPriority priority, TimeSpan interval, Action callback)
{
UnmanagedMethods.TimerProc timerDelegate =
(hWnd, uMsg, nIDEvent, dwTime) => callback();
IntPtr handle = UnmanagedMethods.SetTimer(
IntPtr.Zero,
IntPtr.Zero,
(uint)interval.TotalMilliseconds,
timerDelegate);
// Prevent timerDelegate being garbage collected.
_delegates.Add(timerDelegate);
return(Disposable.Create(() =>
{
_delegates.Remove(timerDelegate);
UnmanagedMethods.KillTimer(IntPtr.Zero, handle);
}));
}
public TimerDisposable(IntPtr handle, UnmanagedMethods.TimerProc timerDelegate, List <Delegate> delegates)
{
this.handle = handle;
this.timerDelegate = timerDelegate;
this.delegates = delegates;
}
