In this post, you’ll learn more about the Error ERROR_GRAPHICS_MONITORDESCRIPTOR_ALREADY_IN_SET – 0xC026232D that is returned when working with the COM-based APIs in Win32
Win32 COM Error
ERROR_GRAPHICS_MONITORDESCRIPTOR_ALREADY_IN_SET – 0xC026232D
Win32 COM Error Error Description
Specified descriptor is already in the specified monitor descriptor set.