// d3dkmddi.h

typedef struct _DXGK_GAMMARAMPCAPS {
  union {
    struct {
      UINT Gamma_Rgb256x3x16 : 1;
      UINT Reserved : 31;
    };
    UINT Value;
  };
} DXGK_GAMMARAMPCAPS;
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Windows Driver Kit DDI reference (ns-d3dkmddi-_dxgk_gammarampcaps)

_DXGK_GAMMARAMPCAPS structure

Description

The DXGK_GAMMARAMPCAPS structure identifies gamma-ramp capabilities of the display miniport driver that the driver provides through a call to its DxgkDdiQueryAdapterInfo function.

Members

`Gamma_Rgb256x3x16`

A UINT value that specifies whether gamma ramp data is stored as 256 16-bit RGB values. Setting this member is equivalent to setting the first bit of the 32-bit Value member (0x00000001).

`Reserved`

This member is reserved and should be set to zero. Setting this member to zero is equivalent to setting the remaining 31 bits (0xFFFFFFFE) of the 32-bit Value member to zeros.

`Value`

A member in the union that DXGK_GAMMARAMPCAPS contains that can hold a 32-bit value that identifies gamma-ramp capabilities.

DXGK_GAMMARAMPCAPS - NtDoc