Returns the Control that appears on the left side of the banner.
*
@return the control that appears on the left side of the banner or null
*
@exception SWTException <ul>
<li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
<li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
</ul>
*
@since 3.0
Returns the Control that appears on the left side of the banner. * @return the control that appears on the left side of the banner or null * @exception SWTException <ul> <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> </ul> * @since 3.0