C# Signature:

[DllImport("oleacc.dll")]
public static extern uint AccessibleObjectFromEvent( IntPtr hwnd, uint dwObjectID, uint dwChildID, out IAccessible ppacc, [MarshalAs(UnmanagedType.Struct)] out object pvarChild);

VB .NET Signature:

Declare Function AccessibleObjectFromEvent Lib "oleacc.dll" (TODO) As TODO

User-Defined Types:

None.

Notes:

None.

Tips & Tricks:

Please add some!

Sample Code:

    private static IAccessible GetFocusedAccessibleWindowFromHandle()
    {
        IntPtr hwnd = GetFocusedWindow();

        IAccessible accWindow = null;
        object objChild;
        AccessibleObjectFromEvent(hwnd, 0, 0, out accWindow, out objChild);
        return accWindow;
    }

    [DllImport("oleacc.dll")]
    private static extern uint AccessibleObjectFromEvent(IntPtr hwnd, uint dwObjectID, uint dwChildID,
        out IAccessible ppacc, [MarshalAs(UnmanagedType.Struct)] out object pvarChild);

Alternative Managed API:

The ManagedWindowsApi project (http://mwinapi.sourceforge.net) provides a SystemAccessibleObject class to access accessible objects, that can be instantiated from an accessible event.