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The VideoPortReleaseBuffer function is obsolete in Windows 2000 and later. In its place, video miniport drivers should instead use VideoPortFreePool.
VideoPortReleaseBuffer deallocates a block of paged pool memory.
Syntax
VIDEOPORT_DEPRECATED VIDEOPORT_API VOID VideoPortReleaseBuffer(
[in] IN PVOID HwDeviceExtension,
[in] IN PVOID Buffer
);
Parameters
[in] HwDeviceExtension
Pointer to the miniport driver's device extension.
[in] Buffer
Specifies the address of the block of pool memory being deallocated.
Return value
None
Remarks
This function releases memory allocated by VideoPortAllocateBuffer. A miniport driver must not access the memory block to which Buffer points after it has been freed.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available in Windows 2000 and later versions of the Windows operating systems. |
| Target Platform | Desktop |
| Header | video.h (include Video.h) |
| Library | Videoprt.lib |
| DLL | Videoprt.sys |
| IRQL | PASSIVE_LEVEL |