Brightness control over HDMI via DCC/CI?

I'm looking for a way to adjust the brightness of a display, which is connected via HDMI to a Dragonboard 410c with Windows IoT Core installed. I read that DCC/CI can control the brightness over HDMI, tested that already with an OpenSource tool called "Monitorian" on my Windows 10 machine, which does work. This tool is written in C# but relies on "DllImport", with which i absolutely have no experience. So the question is, is it possible, to control the brightness from my UWP code somehow?

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