"To obtain the items being activated, the receiving application should use the LVM_GETSELECTEDCOUNT message to receive the number of items that are selected and then send the LVM_GETNEXTITEM message with LVNI_SELECTED until all of the items have been retrieved " How did you use LVM_GETSELECTEDCOUNT, LVM_GETNEXTITEM, and LVNI_SELECTED? Can you give an sample code to solve the problem mentioned?