🚀 go-pugleaf

Hi Mike, thanks for the reply,


Mike Collins wrote:
> Colin,
> 
> "Global\\".  This should work in all cases, regardless of Vista or XP (the 
> only exception being Windows 2K <).  I did not notice anothing in the 
> article that suggested "at times". 

The "at times" is what I have experienced in XP...
BTW: does Windows 2K < include Windows 2K or just NT/9x.

  I have a similar situation and it seems
> ot work in both Vista and XP.
> 
> Have you checked which part of your process is not working?
> 

The fact is that all objects are created without error.
However when you open the named object it simply says
file not found.

> Is it the initial CreateFileMapping or the OpenFileMapping?
> 
Open file mapping ...

> What does GetLastError() return?
> 
.... File Not found.


> What does ProcExplorer.exe show up as the file map name?
> 
Have to double check this....

> How are you controlling access to your MMF?
what do you mean by this? This is my code...

..........
// Code in Service

    bool Is9x = (Win32Platform == VER_PLATFORM_WIN32_WINDOWS);

    if (Is9x == false)//nt/2000/2003 server/xp pro/
    {
      //Beep(1000,20);
      SECURITY_DESCRIPTOR  sd;
      SECURITY_ATTRIBUTES  sa;
      InitializeSecurityDescriptor(&sd, SECURITY_DESCRIPTOR_REVISION);
      SetSecurityDescriptorDacl(&sd, TRUE, NULL, FALSE);
      sa.nLength = sizeof(sa);
      sa.lpSecurityDescriptor = &sd;
      sa.bInheritHandle = TRUE;
      mmHandle = CreateFileMapping((HANDLE) 0xFFFFFFFF,
                  &sa, PAGE_READWRITE, 0, mmSize, __TEXT(mmName));
    }
    else
    {
      mmHandle = CreateFileMapping((HANDLE) 0xFFFFFFFF,
                  NULL, PAGE_READWRITE, 0, mmSize, __TEXT(mmName));
    }

...........

//Code in Front end client

    hFileMapT = OpenFileMapping(FILE_MAP_READ | FILE_MAP_WRITE,
       FALSE, __TEXT(mmName));




> 
> Mike C
> 
> 
> "Colin B Maharaj" <noreply@myhost.com> wrote in message 
> news:48637046$1@newsgroups.borland.com...
>> Hi folks,
>> I recently had to fix a bug where my memory mapped file
>> that was running in my service application was not
>> visible to my foreground application.
>>
>> To fix this I had to add Global to the name like this.....
>>
>> From: "MMAPFILE"
>> To: "Global\\MMAPFILE"
>>