VideoPortUnlockBuffer function

The VideoPortUnLockBuffer function unlocks physical pages described by the specified memory descriptor list (MDL).

Syntax

VIDEOPORT_API VOID VideoPortUnlockBuffer(
  IN PVOID HwDeviceExtension,
  IN PVOID Mdl
);

Parameters

HwDeviceExtension

Pointer to the miniport driver's device extension.

Mdl

Pointer to the MDL of the buffer to be released. This parameter should be the same pointer that was returned by VideoPortLockBuffer.

Return Value

None

Requirements

   
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 <= DISPATCH_LEVEL

See Also

VideoPortLockBuffer