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windowsdirectxhdr

Toggle monitor HDR mode with DXGI API

Microsoft documentation and sample code claims that DXGI can switch a monitor between HDR/SDR modes. However running the code sample D3D12HDR and changing the swap chain format does not change the monitor mode for me.

I am only able to set the screen into hdr either through:

  • windows display settings, "Play HDR games and apps" toggle switch
  • nvidia api functions

Is it possible to change the monitor's HDR mode using only DXGI API? My monitor is an ASUS XG27U.

Solution

  • There are no DX APIs to set the display into HDR mode. It must be enabled in Windows display settings.

    Use of the NVIDIA API functions is discouraged.