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DXGKCB_QUERYFEATURESUPPORT callback function (d3dkmddi.h)

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A kernel-mode display miniport driver (KMD) calls DXGKCB_QUERYFEATURESUPPORT to query whether the OS will permit it to enable support for a feature.

Syntax

DXGKCB_QUERYFEATURESUPPORT DxgkcbQueryfeaturesupport;

NTSTATUS DxgkcbQueryfeaturesupport(
  INOUT_PDXGKARGCB_QUERYFEATURESUPPORT unnamedParam1
)
{...}

Parameters

unnamedParam1

Pointer to a DXGKARGCB_QUERYFEATURESUPPORT structure that contains information about the feature being queried.

Return value

Return STATUS_SUCCESS if the operation succeeds. Otherwise, returns an appropriate NTSTATUS error code.

Remarks

The OS sets the Enabled member of DXGKARGCB_QUERYFEATURESUPPORT to TRUE when it permits the driver to enable support for the queried feature. Enabled is set to FALSE to instruct the driver to not enable its support for the feature.

The OS's determination of whether to enable a feature is based on a number of factors.

Pre-WDDM 2.9 drivers can call DXGKCB_ISFEATUREENABLED instead.

Requirements

Requirement Value
Minimum supported client Windows 10 version 20H1
Minimum supported server Windows Server 2022
Header d3dkmddi.h

See also

DXGKARGCB_QUERYFEATURESUPPORT