DXGK_FEATURE_INTERFACE structure (dispmprt.h)
The DXGK_FEATURE_INTERFACE structure contains the port driver's interface that can be used to query it for its enabled features and their support.
Syntax
typedef struct _DXGK_FEATURE_INTERFACE {
USHORT Size;
USHORT Version;
PVOID Context;
PINTERFACE_REFERENCE InterfaceReference;
PINTERFACE_DEREFERENCE InterfaceDereference;
DXGKCB_ISFEATUREENABLED2 IsFeatureEnabled;
DXGKCB_QUERYFEATUREINTERFACE QueryFeatureInterface;
} DXGK_FEATURE_INTERFACE, *PDXGK_FEATURE_INTERFACE;
Members
Size
Size of this structure, in bytes.
Version
The version number of the feature interface. Version number constants are defined in Dispmprt.h (for example, DXGK_FEATURE_INTERFACE_VERSION_1).
Context
Pointer to a private context block.
InterfaceReference
Pointer to the port driver's interface reference function.
InterfaceDereference
Pointer to the port driver's interface dereference function.
IsFeatureEnabled
The port driver's DXGKCB_ISFEATUREENABLED2 function. KMD can call this function to query whether the system has enabled a feature.
QueryFeatureInterface
The port driver's DXGKCB_QUERYFEATUREINTERFACE function. KMD can call this function to query the OS for a feature's interface.
Remarks
To get this interface, KMD calls Dxgkrnl's DxgkCbQueryServices callback with ServiceType set to DxgkServicesFeature. KMD can call DxgkCbQueryServices once it obtains the callback's pointer from a call to its DxgkDdiStartDevice.
For more information, see Querying WDDM feature support and enablement.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 11, version 24H2 (WDDM 3.2) |
| Header | dispmprt.h |