Whenever you need to enumerate the sub-keys of a key you have to get the node associated with the key (see cft_GetEx or cft_FindNode). When you have the node associated with the key you can get the node of the first sub-key calling the function cft_EnumFirst. Later on you can enumerate the sub keys stepping from node to node calling this function.
The function needs the node id lNodeId returned by cft_EnumFirst or by previous call of this function.
The function returns the node id of the next sub key.
If the enumeration has ended, in other words there is no next sub-key the
function returns zero.
long cft_EnumNext(ptConfigTree pCT,