// dispmprt.h

DXGK_BRIGHTNESS_GET_3 DxgkBrightnessGet3;

NTSTATUS DxgkBrightnessGet3(
  [in]  PVOID Context,
  [in]  ULONG ChildUid,
  [out] PDXGK_BRIGHTNESS_GET_OUT pOut
)
{...}
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nc-dispmprt-dxgk_brightness_get_3)

DXGK_BRIGHTNESS_GET_3 callback function

Description

Implemented by the client driver to retrieve the currently active brightness level of an integrated display panel, with details on the brightness transition in progress.

Parameters

`Context` [in]

A handle to a context block that is associated with a display adapter.

`ChildUid` [in]

An integer that uniquely identifies the child device. The display miniport driver's DxgkDdiQueryChildRelations function previously provided this identifier to the display port driver.

`pOut` [out]

Pointer to a PDXGK_BRIGHTNESS_GET_OUT structure that contains the output parameters for the get brightness call.

Return value

Return STATUS_SUCCESS if the operation succeeds. Otherwise, return an appropriate NTSTATUS Values error code defined in ntstatus.h.

Prototype

//Declaration

DXGK_BRIGHTNESS_GET_3 DxgkBrightnessGet3;

// Definition

NTSTATUS DxgkBrightnessGet3
(
    PVOID Context
    ULONG ChildUid
    PDXGK_BRIGHTNESS_GET_OUT pOut
)
{...}

DXGK_BRIGHTNESS_GET_3

View the official Windows Driver Kit DDI reference