In this post, you’ll learn more about the Error ERROR_GRAPHICS_VIDPN_MODALITY_NOT_SUPPORTED – 0xC0262306 that is returned when working with the COM-based APIs in Win32
Win32 COM Error
ERROR_GRAPHICS_VIDPN_MODALITY_NOT_SUPPORTED – 0xC0262306
Win32 COM Error Error Description
Specified VidPN modality is not supported (e.g. at least two of the pinned modes are not cofunctional).