Sends a message to accessible clients that the text
within a custom control has changed.
@param type the type of change, one of <code>ACC.NOTIFY_TEXT_INSERT</code>
or <code>ACC.NOTIFY_TEXT_DELETE</code>
@param startIndex the text index within the control where the insertion or deletion begins
@param length the non-negative length in characters of the insertion or deletion
@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 text within a custom control has changed.
@param type the type of change, one of <code>ACC.NOTIFY_TEXT_INSERT</code> or <code>ACC.NOTIFY_TEXT_DELETE</code> @param startIndex the text index within the control where the insertion or deletion begins @param length the non-negative length in characters of the insertion or deletion
@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>
@see ACC#TEXT_INSERT @see ACC#TEXT_DELETE
@since 3.0