Get Element’s role text under cursor
#include ACC.ahk
obj_Element:= Acc.ElementFromPoint()
Elm_RoleText:=obj_Element.RoleText
msgbox Elm_RoleText
Element 的属性
包括以下内容，详见ACC.ahk 中 IAccessible element properties 这个部分的内容。
Name
Value
Role
RoleText
Help
KeyboardShortcut
State
StateText
Description
DefaultAction
Focus
Selection
Parent
IsChild
Length
Location
Children
Exists
ControlID
WinID
accessible
childId
