Returns <code>true</code> if the point specified by the
arguments is inside the area specified by the receiver,
and <code>false</code> otherwise.
@param x the x coordinate of the point to test for containment
@param y the y coordinate of the point to test for containment
@return <code>true</code> if the region contains the point and <code>false</code> otherwise
@exception SWTException <ul>
<li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
</ul>
Returns <code>true</code> if the point specified by the arguments is inside the area specified by the receiver, and <code>false</code> otherwise.
@param x the x coordinate of the point to test for containment @param y the y coordinate of the point to test for containment @return <code>true</code> if the region contains the point and <code>false</code> otherwise
@exception SWTException <ul> <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> </ul>