Sends a message to accessible clients that the child selection
within a custom container control has changed.
@exception SWTException <ul>
<li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li>
<li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li>
</ul>
Sends a message to accessible clients that the child selection within a custom container control has changed.
@exception SWTException <ul> <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> </ul>
@since 3.0