position. Plus, it updated the row/column count before making the callback,
so you could no longer access the userData with XtVaGetValues.
Also add XmLTreeDeleteChildren() to XmLTree.
This code written by Steve Lamm <slamm@netscape.com> and reviewed by
ramiro.
git-svn-id: svn://10.0.0.236/trunk@302 18797224-902f-48f8-a5cc-f745e15eee43