Re: FormatMessage

From:

"slg" <slg@abc.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Fri, 22 Feb 2008 07:09:22 -0600

Message-ID:

<OnvxiQVdIHA.6092@TK2MSFTNGP06.phx.gbl>

Joe, Thx a lot.

I called following function which returned the HRESULT errorcode.
CreateMsgService

I will follow what you suggested and let you know how it goes.

Thx

"Joseph M. Newcomer" <newcomer@flounder.com> wrote in message
news:99osr31sadsuhi0t7avf4b0evruje4hfmu@4ax.com...

I would suspect that there is a registered DLL that contains the MAPI
message table, and
you would need to figure out the name of that DLL. You would need to
obtain a handle to
it (GetModuleHandle should do...) then FormatMessage would have to be
changed to

if(::FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
           FORMAT_MESSAGE_FROM_HMODULE, FORMAT_MESSAGE_FROM_SYSTEM,
           MAPImoduleHandle,
           err,
           0,
           (LPTSTR)&s,
           0,
           NULL) == 0)

Unfortunately, I asked "which API" and your response was not the name of
an API, but the
vague "a MAPI (Messaging API) Function". I'm sure you didn't call a
random function, I
suspect it actually has a name. Without the name of the API, I can't
figure out where you
are likely to have to look for information.

Many HRESULTs are actually valid error codes, but this is not among the
ones that are
known to the system. Therefore, it might be a private message code of the
particular MAPI
module you are using, and without knowing the name of the API, I'm at a
loss as to where
to start looking.
joe

On Thu, 21 Feb 2008 18:58:11 -0600, "slg" <slg@abc.com> wrote:

Thx.Joe,

I was confused with DWORD last system error parameter and HRESULT error
.
Now its clear from your
description.

I get this error when i execute a MAPI (Messaging API) Function
0x80040103

Is there a way i can get the description of this HRESULT

I found following function in .NET but it too does not return the correct
description .

int hr = unchecked((int)0x80040103);
Exception Ex = Marshal.GetExceptionForHR(hr);

Followin link has error descriptions. i am looking for an API function to
retrieve the error description.
http://www.mapi33.adexsolutions.com/docs/MAPI33.Error.html

"Joseph M. Newcomer" <newcomer@flounder.com> wrote in message
news:mmpqr35ivp56r025hnd0q5qnqnvvpa766l@4ax.com...

Had you considered something as simple as looking in winerror.h? Where
317 says

ERROR_MR_MID_NOT_FOUND
The system cannot find message text...

which is not terribly surprising because 0x80040103 is not a specified
error code.

First: what API returned this error code? If MS does not have a string
for the error code
they return from a known API, then this represents a bug. But without
knowing what API
returned the error code it is impossible to tell what went wrong.

What version of VS are you using? What version of Windows? It helps to
know. At least
the VS2005 SDK does not list 0x80040103 as a known error code, and the
Error Lookup tool
of VS (see Tools>Error lookup) on Vista claims it is an unknown error.

Second: the only correct way to handle this is as shown in my example of
using
FormatMessage in MFC, where you have to report the error code as a
decimal
and hexadecimal
number; that is, you have to write

if(::FormatMessage(...) == 0)
    {
     CString fmt;
     fmt.LoadString(IDS_UNKNOWN_ERROR);
     // Unknown error code %d (0x%08x)
     CString t;
     t.Format(fmt, err, err);
     ...deal with returning t as the error string
    }

joe

On Thu, 21 Feb 2008 03:45:25 -0600, "slg" <slg@abc.com> wrote:

I am using format message as follows. This function is in a mfc dll.
when
i
pass err value as
0x80040103 which is BadCharWidth it fails and last error is 317

LPTSTR s;
::FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
           FORMAT_MESSAGE_FROM_SYSTEM,
           NULL,
           err,
           0,
           (LPTSTR)&s,
           0,
           NULL)
DWORD dwlastError = GetLastError();
dwLastError value is 317.

can any one explain what does 317 mean?

TIA

Joseph M. Newcomer [MVP]
email: newcomer@flounder.com
Web: http://www.flounder.com
MVP Tips: http://www.flounder.com/mvp_tips.htm