// d3d10umddi.h

PFND3D10DDI_CALCPRIVATEOPENEDRESOURCESIZE Pfnd3d10ddiCalcprivateopenedresourcesize;

SIZE_T Pfnd3d10ddiCalcprivateopenedresourcesize(
  D3D10DDI_HDEVICE unnamedParam1,
  const D3D10DDIARG_OPENRESOURCE *unnamedParam2
)
{...}
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Windows Driver Kit DDI reference (nc-d3d10umddi-pfnd3d10ddi_calcprivateopenedresourcesize)

PFND3D10DDI_CALCPRIVATEOPENEDRESOURCESIZE callback function

Description

The CalcPrivateOpenedResourceSize function determines the size of the user-mode display driver's private shared region of memory (that is, the size of internal driver structures, not the size of the resource video memory) for an opened resource.

Parameters

`unnamedParam1`

hDevice [in]

A handle to the display device (graphics context).

`unnamedParam2`

pOpenResource [in]

A pointer to a D3D10DDIARG_OPENRESOURCE structure that describes the parameters that the user-mode display driver uses to calculate the size of the shared memory region.

Return value

CalcPrivateOpenedResourceSize returns the size of the shared memory region that the driver requires for opening resources.

PFND3D10DDI_CALCPRIVATEOPENEDRESOURCESIZE - NtDoc