Returns a string with HTML that represents the content of the current page.
@return HTML representing the current page or an empty <code>String</code>
if this is empty
@exception SWTException <ul>
<li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
<li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
</ul>
Returns a string with HTML that represents the content of the current page.
@return HTML representing the current page or an empty <code>String</code> if this is empty
@exception SWTException <ul> <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li> <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li> </ul>
@since 3.4