// dispmprt.h

NTSTATUS DlUnmapMemory(
  PVOID  DeviceHandle,
  PVOID  VirtualAddress,
  HANDLE ProcessHandle
);
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Windows Driver Kit DDI reference (nf-dispmprt-dlunmapmemory)

DlUnmapMemory function

Description

Releases a mapping between a logical address range for the adapter and a virtual address range in the user-mode address space of a particular thread.

Parameters

`DeviceHandle`

A handle that represents a display adapter.

`VirtualAddress`

The virtual address.

`ProcessHandle`

The process handle.

Return value

This function returns NTSTATUS.

DlUnmapMemory - NtDoc