PAGP_RELEASE_VIRTUAL - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// videoagp.h

PAGP_RELEASE_VIRTUAL PagpReleaseVirtual;

VOID PagpReleaseVirtual(
  [in] IN PVOID HwDeviceExtension,
  [in] IN PVOID VirtualReserveContext
)
{...}
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nc-videoagp-pagp_release_virtual)

PAGP_RELEASE_VIRTUAL callback function

Description

The AgpReleaseVirtual function frees system memory reserved by a previous call to AgpReserveVirtual.

Parameters

HwDeviceExtension [in]

Pointer to the miniport driver's device extension.

VirtualReserveContext [in]

Is the context handle that identifies the reserved virtual address range to be released. This context was obtained from AgpReleaseVirtual.

Remarks

The miniport driver must call AgpFreeVirtual to unmap all committed memory within the range identified by VirtualReserveContext before calling AgpReleaseVirtual to release it.

See also

AgpFreePhysical

AgpReservePhysical

View the official Windows Driver Kit DDI reference

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