Establish the index of the first selected item. If no item in the list is selected then -1 will be returned.
Declaration: WORD lbox_get_slct_idx( LIST_BOX *box ); Call: index = lbox_get_slct_idx( box ); Variable Argument Meaning Inputs: contrl[0] 174 lbox_get contrl[1] 1 Entries in intin contrl[3] 1 Entries in addrin intin[0] 5 lbox_get_slct_idx addrin[0] box Pointer to the list box structure Outputs: contrl[2] 1 Entries in intout contrl[4] 0 Entries in addrout intout[0] index Index of the selected item