interface listbox : widget { 
\c{\fbox{listbox}}
listbox(char* p, char* options = ""); listbox(widget* w, char* p, char* options = ""); void insert(char* s); char* get(int d);
\c{// entry with index d, starts from 0}
void singleselect(); protected: install(action&, char* args); };

slide: The {\em listbox} class