VideoPortPutDmaAdapter function (video.h)
The VideoPortPutDmaAdapter function frees a VP_DMA_ADAPTER structure that was previously allocated by a call to VideoPortGetDmaAdapter.
Syntax
VIDEOPORT_DEPRECATED VIDEOPORT_API VOID VideoPortPutDmaAdapter(
[in] IN PVOID HwDeviceExtension,
[in] IN PVP_DMA_ADAPTER VpDmaAdapter
);
Parameters
[in] HwDeviceExtension
Pointer to the miniport driver's device extension.
[in] VpDmaAdapter
Pointer to the VP_DMA_ADAPTER structure that represents the bus-master adapter.
Return value
None
Remarks
A miniport driver should call this function only if it will not use the same VP_DMA_ADAPTER structure again.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available in Windows XP 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 |