// d3dumddi.h

PFND3DDDI_RECLAIMALLOCATIONS2CB Pfnd3dddiReclaimallocations2cb;

HRESULT Pfnd3dddiReclaimallocations2cb(
  HANDLE hDevice,
  D3DDDICB_RECLAIMALLOCATIONS2 *unnamedParam2
)
{...}
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Windows Driver Kit DDI reference (nc-d3dumddi-pfnd3dddi_reclaimallocations2cb)

PFND3DDDI_RECLAIMALLOCATIONS2CB callback function

Description

pfnReclaimAllocations2Cb is called by the user mode driver to reclaim video memory allocations that were previously offered for reuse.

Parameters

`hDevice`

A handle to the display device.

`unnamedParam2`

pData [in, out]

A pointer to a D3DDDICB_RECLAIMALLOCATIONS2 structure that defines the allocations to reclaim.

Return value

Returns one of the following values.

Return code	Description
S_OK	The allocations were successfully reclaimed.
E_INVALIDARG	An invalid parameter was supplied.
D3DDDIERR_DEVICEREMOVED	The video memory manager or display miniport driver could not complete the operation because either a Plug and Play (PnP) Stop event or a Timeout Detection and Recovery (TDR) event occurred.
Note If this error code is returned, the driver's calling function (typically the pfnReclaimResources routine) must return this error code to the Direct3D runtime.

PFND3DDDI_RECLAIMALLOCATIONS2CB - NtDoc