Editing Display Data Channel (section)

=== OS support for DDC/CI ===
Despite its ubiquity in post-2016 displays, DDC/CI is not generally used by the operating system by default for brightness control on external displays.<ref>{{cite web |title=What is DDC/CI and How to Use It |url=https://appuals.com/what-is-ddc-ci-and-how-to-use-it/ |website=Appuals.com |date=21 February 2019}}</ref> Additional software can be used to send commands to the display, but the degree of system integration vary.

Windows exposes DDC/CI as the ''Monitor Configuration'' Win32 API series.<ref>{{cite web |title=Monitor Configuration - Win32 apps |url=https://docs.microsoft.com/en-us/windows/win32/api/_monitor/ |website=docs.microsoft.com |date=24 January 2023 |language=en-us}}</ref>

{{Anchor|Enhanced Display Data Channel (E-DDC)}}