Selects a list-box string
[C++]
int SetCurSel(
   int nIndex
);
Specifies the zero-based index of the item in the list box.
-1 if an error occurs.
Selects a string and scrolls it into view, if necessary. When the new string 
			is selected, the list box removes the highlight from the previously selected 
			string. 
Header: xldialog.h