// d3dumddi.h

PFND3DDDI_BUFBLT1 Pfnd3dddiBufblt1;

HRESULT Pfnd3dddiBufblt1(
  HANDLE hDevice,
  const D3DDDIARG_BUFFERBLT1 *unnamedParam2
)
{...}
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Windows Driver Kit DDI reference (nc-d3dumddi-pfnd3dddi_bufblt1)

PFND3DDDI_BUFBLT1 callback function

Description

Performs a bit-block transfer (bitblt) operation from a source vertex or index buffer to a destination vertex or index buffer. 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_BUFFERBLT1 structure that describes the parameters of the buffer bitblt operation.

Return value

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

PFND3DDDI_BUFBLT1 - NtDoc