在 System.Linq.Enumerable.FirstOrDefault[TSource](IEnumerable`1 source, Func`2 predicate) 在 Quicker.Utilities.UI.PopupMgr.DetectCornerActions(Point pt) 在 Quicker.Utilities.UI.PopupMgr.ProcessMouseMoveActions() 在 Quicker.Utilities.UI.PopupMgr.MouseMoveThreadFunc() 在 System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) 在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) 在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) 在 System.Threading.ThreadHelper.ThreadStart()