1# OHExtDataHandle 2 3 4## Overview 5 6Defines the extended data handle. 7 8**Related Modules:** 9 10[NativeWindow](_native_window.md) 11 12 13## Summary 14 15 16### Member Variables 17 18| Name | Description | 19| -------- | -------- | 20| [fd](#fd) | File descriptor handle. The value **-1** indicates that the handle is not supported. | 21| [reserveInts](#reserveints) | Number of reserved arrays. | 22| [reserve](#reserve) [0] | Reserve array. | 23 24 25## Member Variable Description 26 27 28### fd 29 30 31``` 32int32_t OHExtDataHandle::fd 33``` 34**Description**<br> 35File descriptor handle. The value **-1** indicates that the handle is not supported. 36 37 38### reserve 39 40 41``` 42int32_t OHExtDataHandle::reserve[0] 43``` 44**Description**<br> 45Reserve array. 46 47 48### reserveInts 49 50 51``` 52uint32_t OHExtDataHandle::reserveInts 53``` 54**Description**<br> 55Number of reserved arrays. 56