Counts the number of folders in a folder list created by FolderListCreate() or FolderListCreateFromView().
AFTKN_FLDRLIST_GET_Count or 707
WORD FolderListGetCount (DWORD FolderListHandle)
Folder list handle, returned by FolderListCreate or FolderListCreateFromView.
WORD. Returns the number of folders in the folder list.