vba - how to solve UnmapViewOfFile error 487? -


not sure supposed this, i'm posting question save people time. found answer. please let me know can if not best place.

this creating error 487 after unmapviewoffile line:

option explicit  private const page_readwrite long = &h4 private const file_map_write long = &h2 private const generic_read = &h80000000 private const generic_write = &h40000000 private const open_always = 4 private const file_attribute_normal = &h80  'http://www.cadsharp.com/docs/win32api_ptrsafe.txt   declare function createfile lib "kernel32" alias "createfilea" (byval lpfilename string, _     byval dwdesiredaccess long, byval dwsharemode long, _     byval lpsecurityattributes long, byval dwcreationdisposition long, _     byval dwflagsandattributes long, byval htemplatefile long) long   declare function createfilemapping lib "kernel32.dll" alias "createfilemappinga" ( _     byval hfile long, _     byval lpfilemappigattributes long, _     byval flprotect long, _     byval dwmaximumsizehigh long, _     byval dwmaximumsizelow long, _     byval lpname string) long   declare function mapviewoffile lib "kernel32.dll" ( _     byval hfilemappingobject long, _     byval dwdesiredaccess long, _     byval dwfileoffsethigh long, _     byval dwfileoffsetlow long, _     byval dwnumberofbytestomap long) long   declare sub copymemory lib "kernel32" alias _     "rtlmovememory" (destination any, source any, _     byval length long)   declare function closehandle lib "kernel32.dll" ( _     byval hobject long) long   declare function unmapviewoffile lib "kernel32.dll" ( _     byref lpbaseaddress any) long   public hmmf long public pmemfile long  sub intomemoryfileoutofmemoryfile() err.clear     dim sfile string     dim hfile long      dim bbytes variant     sfile = "c:\test1.txt" debug.print err.lastdllerror     'https://msdn.microsoft.com/en-us/library/windows/desktop/aa363858%28v=vs.85%29.aspx     hfile = createfile(sfile, generic_read or generic_write, 0, 0, open_always, file_attribute_normal, 0) debug.print err.lastdllerror     'https://msdn.microsoft.com/en-us/library/windows/desktop/aa366537%28v=vs.85%29.aspx      hmmf = createfilemapping(hfile, 0, page_readwrite, 0, 1000000, "mymemorymappedfilex") debug.print err.lastdllerror     'https://msdn.microsoft.com/en-us/library/windows/desktop/aa366761%28v=vs.85%29.aspx     pmemfile = mapviewoffile(hmmf, file_map_write, 0, 0, 1000000)  debug.print err.lastdllerror     unmapviewoffile pmemfile '< - produced error 487 debug.print err.lastdllerror     closehandle hmmf debug.print err.lastdllerror     closehandle hfile debug.print err.lastdllerror  end sub

change line:

 declare function unmapviewoffile lib "kernel32.dll" ( _     byref lpbaseaddress any) long

to...

 declare function unmapviewoffile lib "kernel32.dll" ( _     byval lpbaseaddress any) long

just changed byref byval.


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