[Gereral1]

I'm an HDR equipped tester. I played with your files all morning. The ones with the source code and the previous ones. I decompiled some also and hope you don't mind. In the end, I made some alterations. I have come to the conclusion playercorefactory refuses to launch exe's unless it's an actual player. As usual the paths are correct and the exe's match the xml. Can't imagine what I could be doing wrong if it indeed works? It can however launch a bat. I added code to my existing playercorefactory and created 2 new bat files. So now I can enable/disable (mpc-hc presets) from the 'play using' menu. It still errors with the 'External player active' but confirming closes the window and the preset changes take place. Same with disabling. So, it's all working within Kodi. I got rid of the CMD confirmation by changing 'pause' to 'exit'. Still no joy with MadVR, only Custom Presenter.

How do I change this value so it reflects -1 in the player: Echo HKCU\Software\MPC-HC\MPC-HC\Settings /v VideoBrightness /t REG_DWORD /d 5 /f

Same for this: REG ADD HKCU\Software\MPC-HC\MPC-HC\Settings /v VideoBrightness /t REG_DWORD /d 5 /f

Changing the 5 to -1 results in 0 looking at the player settings.

Lastly, have you created .bats enabled and disabled for MPC-BE? If I edit what we have from MPC-HC to MPC-BE will it apply? I assume the reg paths are right next to each other for everything?

To get - you must use hex to decimal. Export your misc reg settings in mpc. Open edit .reg and look for the 4 keys. The ffff hex value or 0000a. Google hex to decimal and convert hex or minus values to decimal. This will set - levels. As for XML you must go into the movie folder and right click on the file and open external player to see the entries in playlist core file. Pretty neat hay how much control you have with these sliders. If you leave TV in bt708 add 12 points of tint for bt2020 conversion. You can add switching of custom presenter filter and back to madvr in HDR off as well. The keys call other master keys to set lav filters, external filters and internal filters, full screen keys. I am positive win10 has a key to switch HDR tab in settings GUI? Just got to find it. I'm thinking of using processor monitor to monitor hkey changes to find the master switch key. I tried .bat in kodi and only .exe would work. What we need is Pascal code to tell kodi to load keys before mpc launches. Then load reset keys at exit. VB can do keys and .ini files. This is kinda what I'm leaning to. Windows driven VB API function front end for mpc. The BC version just export backup search BC keys. Then add 4 more lines of keys to switchpc be too. Madvr same idea.... Just have not had time to try these.