DXGKARG_QUERYFEATURESUPPORT - NtDoc
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headers
// d3dkmddi.h
typedef struct _DXGKARG_QUERYFEATURESUPPORT {
DXGK_FEATURE_ID FeatureId;
DXGK_FEATURE_VERSION MinSupportedVersion;
DXGK_FEATURE_VERSION MaxSupportedVersion;
BOOLEAN AllowExperimental;
BOOLEAN SupportedByDriver;
BOOLEAN SupportedOnCurrentConfig;
} DXGKARG_QUERYFEATURESUPPORT;
View the official Windows Driver Kit DDI referenceNo description available.
DXGKARG_QUERYFEATURESUPPORT is the parameter to the DxgkDdiQueryFeatureSupport function.
FeatureId[in] A DXGK_FEATURE_ID value that specifies the ID of the feature being queried.
MinSupportedVersion[out] Driver-defined value that identifies the minimum version supported by the driver. If SupportedByDriver is TRUE, this value must be non-zero.
MaxSupportedVersion[out] Driver-defined value that identifies the maximum version supported by the driver. If SupportedByDriver is TRUE, this value must be non-zero, and must be greater than or equal to MinSupportedVersion.
AllowExperimental[in] If TRUE, the driver may report experimental features as supported. If FALSE, the driver must report an experimental feature as unsupported. The OS determines whether a particular feature is allowed to be enabled in an experimental state or not. See Remarks.
SupportedByDriver[out] The driver sets this to TRUE if it implements and supports this feature; otherwise, it sets it to FALSE. See Remarks.
SupportedOnCurrentConfig[out] The driver sets this to TRUE if the current configuration supports this feature; otherwise, it sets it to FALSE.
The distinction between SupportedByDriver and SupportedOnCurrentConfig is used to determine if the system is capable of actually using a particular feature. For example, in a test environment, it's often important to understand that the driver supports a feature, but is running on older hardware that doesn't support it. Such a test should be skipped instead of reporting a failure. For a feature to be considered enabled, both values must be reported as TRUE by the driver.
For more information, see Querying WDDM feature support and enablement.