# What's readUInt30 and WriteUInt30 in Haxe 4?
**URL:** https://community.haxe.org/t/whats-readuint30-and-writeuint30-in-haxe-4/2220
**Category:** Haxe
**Created:** [January 17, 2020, 9:31am UTC](https://community.haxe.org/t/whats-readuint30-and-writeuint30-in-haxe-4/2220 "2020-01-17T09:31:50Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Zhan](https://community.haxe.org/u/Zhan)
#### Post date: [January 17, 2020, 9:31am UTC](https://community.haxe.org/t/whats-readuint30-and-writeuint30-in-haxe-4/2220/1 "2020-01-17T09:31:50Z")
> **[ncannasse/haxevideo](https://github.com/ncannasse/haxevideo)**
>
> FLV streaming server. Contribute to ncannasse/haxevideo development by creating an account on GitHub.
what’s readUInt30 and WriteUInt30 in Haxe 4 ?
this lib have lots of change in haxe api .
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### Author:  [@RealyUniqueName](https://community.haxe.org/u/RealyUniqueName)
#### Post date: [January 17, 2020, 12:10pm UTC](https://community.haxe.org/t/whats-readuint30-and-writeuint30-in-haxe-4/2220/2 "2020-01-17T12:10:38Z")
There were no `readUInt30` in Haxe 3 either: [haxe.io.BytesInput - Haxe 3.4.7 API](https://api.haxe.org/v/3.4.7/haxe/io/BytesInput.html)
Taking into account the code is ten years old, it could be something from Haxe 2.
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### Author:  [@nanjizal](https://community.haxe.org/u/nanjizal)
#### Post date: [January 18, 2020, 6:56pm UTC](https://community.haxe.org/t/whats-readuint30-and-writeuint30-in-haxe-4/2220/3 "2020-01-18T18:56:13Z")
I have used haxevideo, but not recently it was mostly for use with flash so not that current?
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Hope this helps.