// d3dkmddi.h

DXGKDDI_GETPOSTCOMPOSITIONCAPS DxgkddiGetpostcompositioncaps;

NTSTATUS DxgkddiGetpostcompositioncaps(
           IN_CONST_HANDLE hAdapter,
  [in/out] IN_OUT_PDXGKARG_GETPOSTCOMPOSITIONCAPS pGetPostCompositionCaps
)
{...}
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nc-d3dkmddi-dxgkddi_getpostcompositioncaps)

DXGKDDI_GETPOSTCOMPOSITIONCAPS callback function

Description

Called to retrieve post composition capabilities. Support for this DDI is required for any WDDM 2.2 driver that wants to support post composition scaling.

Parameters

`hAdapter`

Identifies the adapter containing the overlay hardware.

`pGetPostCompositionCaps` [in/out]

A pointer to a DXGKARG_GETPOSTCOMPOSITIONCAPS structure that receives the driver capabilities.

Return value

DXGKDDI_GETPOSTCOMPOSITIONCAPS returns the following values:

Return code	Description
STATUS_SUCCESS	If the routine has been successfully completed.

Remarks

This function is called at PASSIVE_LEVEL.

The multiplane overlay capabilities are allowed to change due to display configuration changes.

View the official Windows Driver Kit DDI reference