1e41f4b71Sopenharmony_ci# MetadataOutput_Callbacks 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci 4e41f4b71Sopenharmony_ci## 概述 5e41f4b71Sopenharmony_ci 6e41f4b71Sopenharmony_ci元数据输出的回调。 7e41f4b71Sopenharmony_ci 8e41f4b71Sopenharmony_ci参见[OH_MetadataOutput_RegisterCallback](_o_h___camera.md#oh_metadataoutput_registercallback)。 9e41f4b71Sopenharmony_ci 10e41f4b71Sopenharmony_ci**起始版本：** 11 11e41f4b71Sopenharmony_ci 12e41f4b71Sopenharmony_ci**相关模块：**[OH_Camera](_o_h___camera.md) 13e41f4b71Sopenharmony_ci 14e41f4b71Sopenharmony_ci 15e41f4b71Sopenharmony_ci## 汇总 16e41f4b71Sopenharmony_ci 17e41f4b71Sopenharmony_ci 18e41f4b71Sopenharmony_ci### 成员变量 19e41f4b71Sopenharmony_ci 20e41f4b71Sopenharmony_ci| 名称 | 描述 | 21e41f4b71Sopenharmony_ci| -------- | -------- | 22e41f4b71Sopenharmony_ci| [OH_MetadataOutput_OnMetadataObjectAvailable](_o_h___camera.md#oh_metadataoutput_onmetadataobjectavailable) [onMetadataObjectAvailable](#onmetadataobjectavailable) | 此回调将调用元数据输出结果数据。 | 23e41f4b71Sopenharmony_ci| [OH_MetadataOutput_OnError](_o_h___camera.md#oh_metadataoutput_onerror) [onError](#onerror) | 元数据输出错误事件。 | 24e41f4b71Sopenharmony_ci 25e41f4b71Sopenharmony_ci 26e41f4b71Sopenharmony_ci## 结构体成员变量说明 27e41f4b71Sopenharmony_ci 28e41f4b71Sopenharmony_ci 29e41f4b71Sopenharmony_ci### onError 30e41f4b71Sopenharmony_ci 31e41f4b71Sopenharmony_ci``` 32e41f4b71Sopenharmony_ciOH_MetadataOutput_OnError MetadataOutput_Callbacks::onError 33e41f4b71Sopenharmony_ci``` 34e41f4b71Sopenharmony_ci 35e41f4b71Sopenharmony_ci**描述** 36e41f4b71Sopenharmony_ci 37e41f4b71Sopenharmony_ci元数据输出错误事件。 38e41f4b71Sopenharmony_ci 39e41f4b71Sopenharmony_ci 40e41f4b71Sopenharmony_ci### onMetadataObjectAvailable 41e41f4b71Sopenharmony_ci 42e41f4b71Sopenharmony_ci``` 43e41f4b71Sopenharmony_ciOH_MetadataOutput_OnMetadataObjectAvailable MetadataOutput_Callbacks::onMetadataObjectAvailable 44e41f4b71Sopenharmony_ci``` 45e41f4b71Sopenharmony_ci 46e41f4b71Sopenharmony_ci**描述** 47e41f4b71Sopenharmony_ci 48e41f4b71Sopenharmony_ci此回调将调用元数据输出结果数据。 49