UnmapViewOfFile

This function unmaps a mapped view of a file from the calling processs address space.

BOOL UnmapViewOfFile( 
LPCVOID lpBaseAddress );

Parameters

  • lpBaseAddress
    Pointer to the base address of the mapped view of a file that is to be unmapped. This value must be identical to the value returned by a previous call to the MapViewOfFile function.

Return Values

Nonzero indicates success. All dirty pages within the specified range are written lazily to disk. Zero indicates failure. To get extended error information, call GetLastError.

Remarks

Although an application may close the file handle used to create a file mapping object, the system holds the corresponding file open until the last view of the file is unmapped.

Requirements

Runs On Versions Defined in Include Link to
Windows CE OS 1.01 and later Winbase.h   Coredll.lib

Note   This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.

See Also

GetLastError, MapViewOfFile

 Last updated on Tuesday, July 13, 2004

© 1992-2000 Microsoft Corporation. All rights reserved.