Hello OriginalGriff, Thank you for taking the time to reply. Best regards, MC

Hello Beautiful People, I do photography as a hobby and also play games. As such, I often use SDR mode for the desktop / photography side, but want to swap to HDR mode for playing some games. Being a bit forgetful, I’ll launch a game from Steam/GOG only realise that I forgot use Win + Alt + B to toggle HDR. Now I have to sit through all the opening movies before I can exit the game, manually turn on HDR then relaunch. I’d like to develop my own launcher that will allow me to toggle HDR mode prior to calling Steam/GOG to launch a game. Does anyone know if toggling HDR mode is possible in C# please? Thanks for your time, MrCrane.