// d3dumddi.h

PFND3DDDI_VOLBLT1 Pfnd3dddiVolblt1;

HRESULT Pfnd3dddiVolblt1(
  HANDLE hDevice,
  const D3DDDIARG_VOLUMEBLT1 *unnamedParam2
)
{...}
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Windows Driver Kit DDI reference (nc-d3dumddi-pfnd3dddi_volblt1)

PFND3DDDI_VOLBLT1 callback function

Description

Performs a bit-block transfer (bitblt) operation from a source volume texture to a destination volume texture. Implemented by Windows Display Driver Model (WDDM) 1.2 or later user-mode display drivers.

Parameters

`hDevice`

A handle to the display device (graphics context).

`unnamedParam2`

pData [in]

A pointer to a D3DDDIARG_VOLUMEBLT1 structure that defines the parameters for the volume bitblt operation.

Return value

Returns S_OK or an appropriate error result if the volume bitblt operation is not successfully performed.

PFND3DDDI_VOLBLT1 - NtDoc