1# OhosImageSourceUpdateData 2 3 4## Overview 5 6The **OhosImageSourceUpdateData** struct defines the update data option of the image source. It is obtained by calling [OH_ImageSource_UpdateData](image.md#oh_imagesource_updatedata). 7 8**System capability**: SystemCapability.Multimedia.Image 9 10**Since**: 10 11 12**Related module**: [Image](image.md) 13 14 15## Summary 16 17 18### Member Variables 19 20| Name| Description| 21| -------- | -------- | 22| uint8_t \* [buffer](image.md#buffer-22) = nullptr | Pointer to the buffer for storing the update data.| 23| size_t [bufferSize](image.md#buffersize-22) = 0 | Size of the buffer.| 24| uint32_t [offset](image.md#offset) = 0 | Offset of the update data in the buffer.| 25| uint32_t [updateLength](image.md#updatelength) = 0 | Length of the update data in the buffer.| 26| int8_t [isCompleted](image.md#iscompleted) = 0 | Whether the image source data update is completed.| 27