Get pointers to the selected items
PtGenListItem_t **PtGenListSelectedItems( PtWidget_t *widget, PtGenListItem_t **buffer );
This function fills the given buffer with pointers to the currently selected items.
If buffer is NULL, the function allocates a buffer using malloc(), and terminates the buffer with a NULL. It's your application's responsibility to free the buffer when it's no longer needed.
If buffer isn't NULL, the function adds a NULL to the end only if there are no selected items.
A pointer to the buffer.