struct _RTL_HP_HEAP_VA_CALLBACKS_ENCODED {
unsigned __int64 CallbackContext;/* 0x0 8 */
unsigned __int64 AllocateVirtualMemoryEncoded;/* 0x8 8 */
unsigned __int64 FreeVirtualMemoryEncoded;/* 0x10 8 */
unsigned __int64 QueryVirtualMemoryEncoded;/* 0x18 8 */
};