PDD_VPORTCB_DESTROYVPORT callback function (ddrawint.h)

Article
04/02/2021

The DdVideoPortDestroy callback function notifies the driver that DirectDraw has destroyed the specified VPE object.

Syntax

PDD_VPORTCB_DESTROYVPORT PddVportcbDestroyvport;

DWORD PddVportcbDestroyvport(
  PDD_DESTROYVPORTDATA unnamedParam1
)
{...}

Parameters

unnamedParam1

Points to a DD_DESTROYVPORTDATA structure that contains the information required for the driver to clean up.

Return value

DdVideoPortDestroy returns one of the following callback codes:

Remarks

DdVideoPortDestroy can be optionally implemented in DirectDraw drivers that support VPE.

The driver should free any memory that it allocated and associated with the specified VPE object. This includes freeing any driver-allocated memory accessed through the dwReserved1 and dwReserved2 members of the DD_VIDEOPORT_LOCAL structure. This DD_VIDEOPORT_LOCAL structure is at the lpVideoPort member of the DD_DESTROYVPORTDATA structure at lpDestroyVideoPort.

Requirements

Requirement	Value
Target Platform	Desktop
Header	ddrawint.h (include Winddi.h)