Subtracts the given rectangle from the collection of polygons
the receiver maintains to describe its area.
@param x the x coordinate of the rectangle
@param y the y coordinate of the rectangle
@param width the width coordinate of the rectangle
@param height the height coordinate of the rectangle
@exception IllegalArgumentException <ul>
<li>ERROR_INVALID_ARGUMENT - if the rectangle's width or height is negative</li>
</ul>
@exception SWTException <ul>
<li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
</ul>
Subtracts the given rectangle from the collection of polygons the receiver maintains to describe its area.
@param x the x coordinate of the rectangle @param y the y coordinate of the rectangle @param width the width coordinate of the rectangle @param height the height coordinate of the rectangle
@exception IllegalArgumentException <ul> <li>ERROR_INVALID_ARGUMENT - if the rectangle's width or height is negative</li> </ul> @exception SWTException <ul> <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> </ul>
@since 3.1