Gets virtual disk states tree.
PRL_RESULT PrlDisk_GetStatesTree( PRL_HANDLE hDisk, PRL_HANDLE_PTR phRootNode );
PrlDisk.h
PRL_RESULT. Possible values are:
PRL_ERR_INVALID_ARG - Invalid handle or null pointer was passed. PRL_ERR_OUT_OF_MEMORY - Not enough memory to create an object. PRL_ERR_SUCCESS - Function completed successfully.
States tree is returned as root node element, child elemets can be retrieved using PrlDiskStateParams_GetChildStateList function.