IOCTL_VIDEO_QUERY_POINTER_CAPABILITIES control code
Returns information about the adapter's "hardware cursor" features. Support for this modal request is optional.
The miniport driver returns a VIDEO_POINTER_CAPABILITIES structure in the VRP OutputBuffer.
If the miniport driver successfully returns the pointer capabilities, it sets the Information member of the STATUS_BLOCK structure to sizeof(VIDEO_POINTER_CAPABILITIES); otherwise, the miniport driver sets this member to zero.