private unsafe bool FindSelectedRadioButtonChild(IntPtr hwnd, void *lParam)
{
// Only be concerned with [....] child controls.
if (!WindowsFormsHelper.IsWindowsFormsControl(hwnd))
{
return(true);
}
Accessible acc = null;
if (Accessible.AccessibleObjectFromWindow(hwnd, NativeMethods.OBJID_CLIENT, ref acc) == NativeMethods.S_OK &&
acc != null &&
acc.Role == AccessibleRole.RadioButton &&
acc.HasState(AccessibleState.Checked))
{
*(IntPtr *)lParam = hwnd;
return(false);
}
return(true);
}