Get system graphics mode.

[Gavin-Williams]

I have the following incomplete code...

            DISPLAYCONFIG_GET_ADVANCED_COLOR_INFO info = new();
            info.header.type = DISPLAYCONFIG_DEVICE_INFO_TYPE.DISPLAYCONFIG_DEVICE_INFO_GET_ADVANCED_COLOR_INFO;
            info.header.size = (uint)Unsafe.SizeOf<DISPLAYCONFIG_GET_ADVANCED_COLOR_INFO>();
            //info.header.adapterId = display.vidpn.targetInfo.adapterId;
            //info.header.id = display.vidpn.targetInfo.id;

            // check display config
            DISPLAYCONFIG_DEVICE_INFO_HEADER requestPacket = (DISPLAYCONFIG_DEVICE_INFO_HEADER)info;


            if (0 == PInvoke.DisplayConfigGetDeviceInfo(ref requestPacket)) // ERROR_SUCCESS = 0
            {
                info.type = DISPLAYCONFIG_DEVICE_INFO_TYPE.DISPLAYCONFIG_DEVICE_INFO_GET_ADAPTER_NAME
            }

How can cast
DISPLAYCONFIG_GET_ADVANCED_COLOR_INFO info
to
DISPLAYCONFIG_DEVICE_INFO_HEADER

In order to pass it into DisplayConfigGetDeviceInfo() ?