Searches the receiver's list starting at the first item
(index 0) until an item is found that is equal to the
argument, and returns the index of that item. If no item
is found, returns -1.
@param item the search item
@return the index of the item
@exception IllegalArgumentException <ul>
<li>ERROR_NULL_ARGUMENT - if the item 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>
Searches the receiver's list starting at the first item (index 0) until an item is found that is equal to the argument, and returns the index of that item. If no item is found, returns -1.
@param item the search item @return the index of the item
@exception IllegalArgumentException <ul> <li>ERROR_NULL_ARGUMENT - if the item 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>