The AccessibleObjectFromWindow function retrieves the address of the specified interface to the object associated with the given window.
C# Signature:
[DllImport("oleacc.dll", ExactSpelling=true, PreserveSig=false)]
[return: MarshalAs(UnmanagedType.Interface)]
public static extern object AccessibleObjectFromWindow(
IntPtr hwnd,
uint dwObjectID,
[In, MarshalAs(UnmanagedType.LPStruct)] Guid riid);
VB .Net Signature:
Private Declare Function AccessibleObjectFromWindow Lib "oleacc" (ByVal Hwnd As Int32, _
ByVal dwId As Int32, _
ByRef riid As Guid, _
<MarshalAs(UnmanagedType.IUnknown)> ByRef ppvObject As Object) As Int32
User-Defined Types:
None.
Notes:
None.
Tips & Tricks:
Please add some!
Sample Code:
Private Declare Function AccessibleObjectFromWindow Lib "oleacc" (ByVal Hwnd As Int32, _
ByVal dwId As Int32, _
ByRef riid As Guid, _
<MarshalAs(UnmanagedType.IUnknown)> ByRef ppvObject As Object) As Int32
Declare Function GetForegroundWindow Lib "user32" () As Int32
Private Sub Form2_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim varChild As Accessibility.IAccessible
Dim hWnd As Int32 = GetForegroundWindow()
Dim ID As Int32 = 0
Dim IID_IAcce As Guid = New Guid("618736E0-3C3D-11CF-810C-00AA00389B71")
Dim aaVal As Int32 = AccessibleObjectFromWindow(hWnd, ID, IID_IAcce, varChild)
End Sub
Alternative Managed API:
TODO
