UnmapViewOfFile2 function (memoryapi.h)
Unmaps a previously mapped view of a file or a pagefile-backed section.
Syntax
BOOL UnmapViewOfFile2(
[in] HANDLE Process,
[in] PVOID BaseAddress,
[in] ULONG UnmapFlags
);
Parameters
[in] Process
A HANDLE to the process from which the section will be unmapped.
[in] BaseAddress
The base address of a previously mapped view that is to be unmapped. This value must be identical to the value returned by a previous call to one of the functions in the MapViewOfFile family.
[in] UnmapFlags
This parameter can be zero (0) or one of the following values.
| Value | Meaning |
|---|---|
|
Specifies that the priority of the pages being unmapped should be temporarily boosted (with automatic short term decay) because the caller expects that these pages will be accessed again shortly from another thread. For more information about memory priorities, see the SetThreadInformation(ThreadMemoryPriority) function. |
|
Unmaps a mapped view back to a placeholder (after you've replaced a placeholder with a mapped view using MapViewOfFile3 or MapViewOfFile3FromApp). |
Return value
Returns TRUE if successful. Otherwise, returns FALSE and extended error status is available using GetLastError.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 10, version 1703 [desktop apps only] |
| Minimum supported server | Windows Server 2016 [desktop apps only] |
| Target Platform | Windows |
| Header | memoryapi.h (include Windows.h, Memoryapi.h) |
| Library | WindowsApp.lib |
| DLL | Kernelbase.dll |