The AccessibleChildren function retrieves the child ID or IDispatch interface of each child within an accessible container object

public static extern uint AccessibleChildren( IAccessible paccContainer, int iChildStart, int cChildren, [Out] object[] rgvarChildren, out int pcObtained);

Declare Function AccessibleChildren Lib "oleacc.dll" (ByVal paccContainer As IAccessible, ByVal iChildStart As Integer, ByVal cChildren As Integer, <[Out]()> ByVal rgvarChildren() As Object, ByRef pcObtained As Integer) As UInteger

Function AccessibleChildren(ByVal paccContainer As IAccessible, ByVal iChildStart As Integer, ByVal cChildren As Integer, <[Out]()> ByVal rgvarChildren() As Object, ByRef pcObtained As Integer) As UInteger

AccessibleChildren(accessible, 0, accessible.accChildCount, childs, out obtained);