Timer Constructor (TimerCallback, Object, Int64, Int64)
Initializes a new instance of the Timer class, using 64-bit signed integers to measure time intervals.
Assembly: mscorlib (in mscorlib.dll)
- Type: System.Threading.TimerCallback
A TimerCallback delegate representing a method to be executed.
- Type: System.Object
An object containing information to be used by the callback method, or null.
- Type: System.Int64
The amount of time to delay before callback is invoked, in milliseconds. Specify Timeout.Infinite to prevent the timer from starting. Specify zero (0) to start the timer immediately.
The delegate specified by the callback parameter is invoked once after dueTime elapses, and thereafter each time the period time interval elapses.
Visual Basic users can omit the TimerCallback constructor, and simply use the AddressOf operator when specifying the callback method. Visual Basic automatically calls the correct delegate constructor.
The method specified for callback should be reentrant, because it is called on ThreadPool threads. The method can be executed simultaneously on two thread pool threads if the timer interval is less than the time required to execute the method, or if all thread pool threads are in use and the method is queued multiple times.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.