# RawFileDescriptor64 ## Overview Defines the file descriptor of a large rawfile. **RawFileDescriptor** is an output parameter of [OH_ResourceManager_GetRawFileDescriptor64](rawfile.md#oh_resourcemanager_getrawfiledescriptor64). It contains the file descriptor of a raw file and the start position and length of the raw file in the HAP. **Since**: 11 **Related module**: [Rawfile](rawfile.md) ## Summary ### Member Variables | Name| Description| | -------- | -------- | | int [fd](#fd) | File descriptor of the rawfile, in int. | | int64_t [start](#start) | Start position of the rawfile in the HAP, in int64_t. | | int64_t [length](#length) | Length of the rawfile in the HAP, in int64_t. | ## Member Variable Description ### fd ``` int RawFileDescriptor64::fd ``` **Description** File descriptor of the rawfile, in int. ### length ``` int64_t RawFileDescriptor64::length ``` **Description** Length of the rawfile in the HAP, in int64_t. ### start ``` int64_t RawFileDescriptor64::start ``` **Description** Start position of the rawfile in the HAP, in int64_t.