Some code for Accessible and UIAutomation

acc.cs

        private Accessible GetFocused(Accessible objParent)
        {
            Accessible objToReturn = default(Accessible);
            if (objParent != null)
            {
                Accessible[] children = null;
                objParent.Children(out children);
                if (children != null)
                {
                    foreach (var accessible in children)
                    {
                        if (accessible != null)
                        {
                            if ((accessible.State & 4) != 0)
                            {
                                return accessible;
                            }
                            objToReturn = GetFocused(accessible);
                            if (objToReturn != default(Accessible))
                            {
                                return objToReturn;
                            }
                        }
                    }
                }

            }
            return objToReturn;
        }

        private bool IsTextControl()
        {
            try
            {

                var element = AutomationElement.FocusedElement;
                if (element != null)
                {
                    AutomationElement framework = element.FindFirst(TreeScope.Subtree, new PropertyCondition(AutomationElement.HasKeyboardFocusProperty, true));
                    if (framework != null)
                    {
                        if (framework.GetCurrentPropertyValue(AutomationElement.IsTextPatternAvailableProperty) != null)
                        {
                            return true;
                        }
                        if (framework.Current.ControlType.Equals(ControlType.Text) || framework.Current.ControlType.Equals(ControlType.Edit))
                        {
                            return true;
                        }
                    }
                }
            }
            catch (Exception ex) { Trace.WriteLine(ex); }
            return false;
        }