public static void DoEvents()
{
// Create new nested message pump.
DispatcherFrame nestedFrame = new DispatcherFrame();// Dispatch a callback to the current message queue, when getting called,
// this callback will end the nested message loop.
// note that the priority of this callback should be lower than the that of UI event messages.
DispatcherOperation exitOperation = Dispatcher.CurrentDispatcher.BeginInvoke(DispatcherPriority.Background, exitFrameCallback, nestedFrame);// pump the nested message loop, the nested message loop will immediately
// process the messages left inside the message queue.
Dispatcher.PushFrame(nestedFrame);// If the "exitFrame" callback doesn't get finished, Abort it.
if (exitOperation.Status != DispatcherOperationStatus.Completed)
{
exitOperation.Abort();
}}
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