How To Save A TreeView To A File

my question is for C++Builder

i have a TreeView with multiple nodes.. each node has the .data property set to point to some structure with additional info about that node

now i need to know how to save that TTreeView to a file of some kind and then load it again...

and i need the .data to be saved as well so when im done loading it.. it will be there too!

please dont tell me to use the .SaveToFile property as that wont save the .data part  (unless im doing something wrong)


just incase no one know what im talking about the .data thing i will give some code

here is the code i use to add an item to the tree

//The Structure
struct TreeLeaf {
    char Name[40];
    char Description[100];
    char Pin[2];
    char Light[8];
};

//The Add Code
    TreeLeaf *data;
    TTreeNode *node;

    data = (TreeLeaf *)malloc(sizeof(TreeLeaf));

    strcpy(data->Pin, "00");
    strcpy(data->Light, "00000000");
    strcpy(data->Description, "New Item");

    node = spSkinTreeView1->Items->Add(NULL,"New Item");
    node->Data = data;
    node->Selected = true;

    Current = node;




so as you can see each node has some additional data attached to it.. which is critical to be saved along with the tree..