Re: Using the Exchange Backup API
- From: "Scot T Brennecke" <ScotB@xxxxxxxxxxxxxxxxxx>
- Date: Mon, 1 Aug 2005 13:21:00 -0500
Yes. Now that you've "forced" me to search for it, I found the following file on my machine:
E:\Visual Studio .NET 2003\Vc7\PlatformSDK\Include\esebcli2.h
In that file, as I expected, on line 51 is this statement:
#define ESEBACK_API __stdcall
"Viraj" <Viraj@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:2930965E-4957-43D8-8DCF-E1D3571EB753@xxxxxxxxxxxxxxxx
> Hello Scot,
>
> Thanks a lot. It worked. Is there a .h or a .lib file available which has
> the functions of the Exchange Backup and Restore API ?
>
> Thanks,
> Viraj
> Mobiliti Inc.
> a.viraj@xxxxxxxxxxxx
> http://www.mobiliti.com
> 732-248-8300 ext 234
>
>
> "Scot T Brennecke" wrote:
>
>> My GUESS is that ESEBACK_API is simply a typedef or #define for __stdcall. Try using __stdcall
>> in
>> its place.
>>
>> "Viraj" <Viraj@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
>> news:C7C75310-CF0D-41AA-B3BA-322EE0166DC0@xxxxxxxxxxxxxxxx
>> > Hello Jeff,
>> >
>> > Thanks for the reply.
>> > I made the changes as suggested by you. My final code is
>> > ---------------------------------------------------
>> > BOOL BackupExchangeServer(HINSTANCE g_hESEDll)
>> > {
>> > BACKUP_NODE_TREE* pMNUBackupNodeTree = NULL;
>> > typedef HRESULT (ESEBACK_API *HrESEBackupRestoreGetNodes) (IN WCHAR*
>> > wszComputerName,OUT PBACKUP_NODE_TREE *ppBackupNodeTree);
>> >
>> > HrESEBackupRestoreGetNodes fnMNUBackupRestoreGetNodes = NULL;
>> > fnMNUBackupRestoreGetNodes = (HrESEBackupRestoreGetNodes) GetProcAddress
>> > (g_hESEDll,"HrESEBackupRestoreGetNodes");
>> > HRESULT hr;
>> > if(fnMNUBackupRestoreGetNodes)
>> > hr = (fnMNUBackupRestoreGetNodes) (NULL, &pMNUBackupNodeTree);
>> > if(hr == S_OK)
>> > return MNU_EXCHANGE_BKP_SUCCESS;
>> > else
>> > return MNU_EXCHANGE_BKP_FAILURE;
>> > }
>> > ---------------------------------------------------
>> >
>> > This code does not compile. I think it cannot get ESEBACK_API which has been
>> > added to the typedef of the function.
>> > The compilation errors with line numbers as well as with the original line
>> > is copied below.
>> > ---------------------------------------------------
>> > Compiling...
>> > MNUExchangeBkpUtils.cpp
>> > //Line 14 typedef HRESULT (ESEBACK_API *HrESEBackupRestoreGetNodes) (IN
>> > // WCHAR* wszComputerName,OUT PBACKUP_NODE_TREE *ppBackupNodeTree);
>> > MNUExchangeBkpUtils.cpp(14) : error C2143: syntax error : missing ')' before
>> > '*'
>> > MNUExchangeBkpUtils.cpp(14) : error C2143: syntax error : missing ';' before
>> > '*'
>> > MNUExchangeBkpUtils.cpp(14) : error C2065: 'HrESEBackupRestoreGetNodes' :
>> > undeclared identifier
>> > MNUExchangeBkpUtils.cpp(14) : error C2059: syntax error : ')'
>> > MNUExchangeBkpUtils.cpp(14) : error C2065: 'wszComputerName' : undeclared
>> > identifier
>> > MNUExchangeBkpUtils.cpp(14) : error C2275: 'WCHAR' : illegal use of this
>> > type as an expression c:\program files\microsoft visual
>> > studio\vc98\include\winnt.h(144) : see declaration of 'WCHAR'
>> > MNUExchangeBkpUtils.cpp(14) : error C2065: 'ppBackupNodeTree' : undeclared
>> > identifier
>> > MNUExchangeBkpUtils.cpp(14) : error C2275: 'PBACKUP_NODE_TREE' : illegal use
>> > of this type as an expression
>> > mnuexchangebkpstructs.h(106) : see declaration of 'PBACKUP_NODE_TREE'
>> > MNUExchangeBkpUtils.cpp(14) : error C2100: illegal indirection
>> >
>> > //Line 16 HrESEBackupRestoreGetNodes fnMNUBackupRestoreGetNodes = NULL;
>> > MNUExchangeBkpUtils.cpp(16) : error C2146: syntax error : missing ';' before
>> > identifier 'fnMNUBackupRestoreGetNodes'
>> > MNUExchangeBkpUtils.cpp(16) : error C2065: 'fnMNUBackupRestoreGetNodes' :
>> > undeclared identifier
>> >
>> > //Line 17 fnMNUBackupRestoreGetNodes = (HrESEBackupRestoreGetNodes)
>> > GetProcAddress (g_hESEDll,"HrESEBackupRestoreGetNodes");
>> > MNUExchangeBkpUtils.cpp(17) : error C2146: syntax error : missing ';' before
>> > identifier 'GetProcAddress'
>> > Error executing cl.exe.
>> > MNUExchangeBackup.exe - 12 error(s), 0 warning(s)
>> > ---------------------------------------------------
>> >
>> > What could possibly be reason the error ? and what could be the fix ?
>> >
>> > Also is there a .h or a .lib file available which has functions of the
>> > Exchange Backup and Restore API ?
>> >
>> > Thanks in advance,
>> > Viraj
>> > Mobiliti Inc.
>> > a.viraj@xxxxxxxxxxxx
>> > http://www.mobiliti.com
>> > 732-248-8300 ext 234
>> >
>> >
>> > "Jeff Partch [MVP]" wrote:
>> >
>> >> "Viraj" <Viraj@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
>> >> news:022E6942-85CC-464C-9040-CAEDA84ECE77@xxxxxxxxxxxxxxxx
>> >> > Hello Scot,
>> >> >
>> >> > Thanks for the reply. I made the correction as directed by you. Also I
>> >> > created PBACKUP_NODE_TREE as typedef struct BACKUP_NODE_TREE
>> >> > *PBACKUP_NODE_TREE ;
>> >> >
>> >> > Now the final code is:
>> >> > --------------------------------------------------------------------------
>> >> ----
>> >> > BOOL BackupExchangeServer(HINSTANCE g_hESEDll)
>> >> > {
>> >> > BACKUP_NODE_TREE* pMNUBackupNodeTree = NULL;
>> >> > typedef HRESULT (* HrESEBackupRestoreGetNodes) (IN WCHAR*
>> >> > wszComputerName,OUT PBACKUP_NODE_TREE *ppBackupNodeTree);
>> >> > HrESEBackupRestoreGetNodes fnMNUBackupRestoreGetNodes = NULL;
>> >> > fnMNUBackupRestoreGetNodes = (HrESEBackupRestoreGetNodes) GetProcAddress
>> >> > (g_hESEDll,"HrESEBackupRestoreGetNodes");
>> >> > HRESULT hr;
>> >> > if(fnMNUBackupRestoreGetNodes)
>> >> > hr = (fnMNUBackupRestoreGetNodes) (NULL, &pMNUBackupNodeTree);
>> >> > if(hr == S_OK)
>> >> > return MNU_EXCHANGE_BKP_SUCCESS;
>> >> > else
>> >> > return MNU_EXCHANGE_BKP_FAILURE;
>> >> > }
>> >> > --------------------------------------------------------------------------
>> >> ----
>> >> >
>> >> > This code compiles properly, but the application fails during execution of
>> >> > HrESEBackupRestoreGetNodes. The error message I get is
>> >> > --------------------------------------------------------------
>> >> > Debug Error!
>> >> > Program: C:\ ...\MNUExchangeBackup.exe
>> >> > Module:
>> >> > File: i386\chkesp.c
>> >> > Line: 42
>> >> > Ther value of ESP was not properly saved across a function call. This is
>> >> > usually a result of calling a function declared with one calling
>> >> convention
>> >> > with a function pointer declared with a different calling convention.
>> >> > --------------------------------------------------------------
>> >> >
>> >> > What could possibly be the error ?
>> >>
>> >> typedef HRESULT (ESEBACK_API* HrESEBackupRestoreGetNodes) (IN WCHAR*
>> >> wszComputerName,OUT PBACKUP_NODE_TREE *ppBackupNodeTree);
>> >>
>> >> --
>> >> Jeff Partch [VC++ MVP]
>> >>
>> >>
>> >>
>>
>>
>>
.
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