# \#locking

**URL:** https://forum.commonvisionblox.com/tag/locking/34.md

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## [Where does the image point to using RGBufferSeq with NumBuffers-1?](https://forum.commonvisionblox.com/t/where-does-the-image-point-to-using-rgbufferseq-with-numbuffers-1/140)

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**Author:** [@Amicelli](https://forum.commonvisionblox.com/u/Amicelli)\
**Replies:** 6\
**Last updated:** [June 19, 2017, 3:17pm UTC](https://forum.commonvisionblox.com/t/where-does-the-image-point-to-using-rgbufferseq-with-numbuffers-1/140 "2017-06-19T15:17:07Z")

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Hello, I am still a little bit confused what RBBufferSeq and using NumBuffers - 1. The original question was: Does RBBufferSeq return the oldest image or oldest unprocessed image in the buffer when the sequence numbe…