Re: FormatMessage and WSAGetLastError

On Thu, 18 Dec 2008 08:53:01 -0800, Fabio Sobral
<FabioSobral@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

Hi.

I'm having a problem with FormatMessage and error codes from WSAGetLastError.
I tested the same code in a WM5 and a WM6 device, and FormatMessage failed
on both. Using GetLastError after FormatMessage I get 317 - "The system
cannot find message text for message number 0x%1 in the message file for %2."

Older versions of Windows CE provided _no_ messages, so FormatMessage
was useless and error 317 was common.


Can I really use FormatMessage with error codes that are not from
GetLastError?
If so, what would be the problem?

I'm doing something like this:

void getErrorMessage(int errorCode, TCHAR* buffer, int32 size)
{
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM |FORMAT_MESSAGE_IGNORE_INSERTS,
null, errorCode, 0, buffer, size, null));
}

If everything is fine, maybe the devices lack this part of the system
message-table. What can I do in this case?

I build a generic message that gives the error number and says no
further info is available. I also include info I gather (e.g., that my
program was trying to open a file called blah).


Thanks

-----------------------------------------
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Robert E. Zaret, eMVP
PenFact, Inc.
20 Park Plaza, Suite 400
Boston, MA 02116
www.penfact.com
.

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