1# OhosImageSourceUpdateData 2<!--Kit: Image Kit--> 3<!--Subsystem: Multimedia--> 4<!--Owner: @aulight02--> 5<!--SE: @liyang_bryan--> 6<!--TSE: @xchaosioda--> 7 8## Overview 9 10The OhosImageSourceUpdateData struct describes the update data option of the image source. It is obtained by calling [OH_ImageSource_UpdateData](capi-image-source-mdk-h.md#oh_imagesource_updatedata). 11 12**Since**: 10 13 14**Related module**: [Image](capi-image.md) 15 16**Header file**: [image_source_mdk.h](capi-image-source-mdk-h.md) 17 18## Summary 19 20### Member Variables 21 22| Name| Description| 23| -- | -- | 24| uint8_t* buffer = nullptr | Pointer to the buffer for storing the update data.| 25| size_t bufferSize = 0 | Size of the buffer.| 26| uint32_t offset = 0 | Offset of the update data in the buffer.| 27| uint32_t updateLength = 0 | Length of the update data in the buffer.| 28| int8_t isCompleted = 0 | Whether the image source data update is completed.| 29