void UpdateEditStateImpl(bool moveOnly = false) { Logger.WindowWatcher.Verbose($"> FormulaEdit UpdateEditState - Thread {Thread.CurrentThread.ManagedThreadId}"); Logger.WindowWatcher.Verbose($"FormulaEdit UpdateEditState - Focus: {_formulaEditFocus} Window: {(_formulaEditFocus == FormulaEditFocus.FormulaBar ? _hwndFormulaBar : _hwndInCellEdit)}"); IntPtr hwnd = IntPtr.Zero; bool prefixChanged = false; if (_formulaEditFocus == FormulaEditFocus.FormulaBar) { hwnd = _hwndFormulaBar; } else if (_formulaEditFocus == FormulaEditFocus.InCellEdit) { hwnd = _hwndInCellEdit; } else { // Neither have the focus, so we don't update anything Logger.WindowWatcher.Verbose("FormulaEdit UpdateEditState End formula editing"); CurrentPrefix = null; if (IsEditingFormula) { UninstallLocationMonitor(); } IsEditingFormula = false; prefixChanged = true; // Debug.Print("#### FormulaEditWatcher - No Window " + Environment.StackTrace); } if (hwnd != IntPtr.Zero) { EditWindowBounds = Win32Helper.GetWindowBounds(hwnd); if (!IsEditingFormula) { IntPtr hwndTopLevel = Win32Helper.GetRootAncestor(hwnd); InstallLocationMonitor(hwndTopLevel); IsEditingFormula = true; } var newPrefix = XlCall.GetFormulaEditPrefix(); // What thread do we have to use here ...? if (CurrentPrefix != newPrefix) { CurrentPrefix = newPrefix; prefixChanged = true; } Logger.WindowWatcher.Verbose($"FormulaEdit UpdateEditState Formula editing: CurrentPrefix {CurrentPrefix}, EditWindowBounds: {EditWindowBounds}"); } // TODO: Smarter (or more direct) notification...? if (moveOnly && !prefixChanged) { StateChanged?.Invoke(this, new StateChangeEventArgs(StateChangeType.Move)); } else { OnStateChanged(StateChangeType.Multiple); } }