Configuring Protection for the Video Signal
OPM configuration can configure protection for the video signal that goes through the physical connector that is associated with the protected output. To set signal protection, the display miniport driver's DxgkDdiOPMConfigureProtectedOutput function receives a pointer to a DXGKMDT_OPM_CONFIGURE_PARAMETERS structure with the guidSetting member set to the DXGKMDT_OPM_SET_ACP_AND_CGMSA_SIGNALING GUID and the abParameters member set to a pointer to a DXGKMDT_OPM_SET_ACP_AND_CGMSA_SIGNALING_PARAMETERS structure that specifies how to protect the signal.