// d3dumddi.h

PFND3DDDI_CREATELIGHT Pfnd3dddiCreatelight;

HRESULT Pfnd3dddiCreatelight(
  HANDLE hDevice,
  const D3DDDIARG_CREATELIGHT *unnamedParam2
)
{...}
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Windows Driver Kit DDI reference (nc-d3dumddi-pfnd3dddi_createlight)

PFND3DDDI_CREATELIGHT callback function

Description

The CreateLight function creates a light source.

Parameters

`hDevice`

A handle to the display device (graphics context).

`unnamedParam2`

pData [in]

A pointer to a D3DDDIARG_CREATELIGHT structure that contains the index into the light array.

Return value

CreateLight should return S_OK or an appropriate error result if it cannot successfully create a light source.

Remarks

The user-mode display driver should enlarge its light array as necessary to accommodate at least as many light sources as specified by the Index member in D3DDDIARG_CREATELIGHT.

PFND3DDDI_CREATELIGHT - NtDoc