Returns the item at the given point in the receiver
or null if no such item exists. The point is in the
coordinate system of the receiver.
<p>
The item that is returned represents an item that could be selected by the user.
For example, if selection only occurs in items in the first column, then null is
returned if the point is outside of the item.
Note that the SWT.FULL_SELECTION style hint, which specifies the selection policy,
determines the extent of the selection.
</p>
@param point the point used to locate the item
@return the item at the given point, or null if the point is not in a selectable item
@exception IllegalArgumentException <ul>
<li>ERROR_NULL_ARGUMENT - if the point is null</li>
</ul>
@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>
Returns the item at the given point in the receiver or null if no such item exists. The point is in the coordinate system of the receiver. <p> The item that is returned represents an item that could be selected by the user. For example, if selection only occurs in items in the first column, then null is returned if the point is outside of the item. Note that the SWT.FULL_SELECTION style hint, which specifies the selection policy, determines the extent of the selection. </p>
@param point the point used to locate the item @return the item at the given point, or null if the point is not in a selectable item
@exception IllegalArgumentException <ul> <li>ERROR_NULL_ARGUMENT - if the point is null</li> </ul> @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>