Convert Error Code To Hresult
Forum New Posts FAQ Calendar Forum Actions Mark Forums Read Quick Links Today's Posts View Site Leaders What's New? Is there a way to convert it to an error description string? The way I have interpreted the situation is that GetLastError() always returns a unique 16-bit value for each error, and you can pass that code to FormatMessage to get the error I would however be careful with macros, or fns/c'tors that have multiple parameters, where AFAIK it's undefined in what order the parameters will be evaluated. his comment is here
Paul Sanders (AlpineSoft)20-Oct-07 8:45 Paul Sanders (AlpineSoft)20-Oct-07 8:45 Nearly two years after the event is perhaps a little late to comment on this, but you never know, someone may read it. Your article is one of the more usefull ones I have seen on CodeProject lately. Why are Car Batteries Still So Heavy? "You there, What do you know about this?" - What did I do now? The dependency tracker says I need to download and install version 18.104.22.168 of the ODBC SDK.
This is why it's best to keep the real error message. The values can be declared in any header that's convenient at the time and moved into a central header once they've stabilized (shipped). Neil says: November 13, 2006 at 9:09 am Sorry if I've overlooked this one, but why does Win32 use error codes instead of HRESULTs?
Perhaps...but all these strings are mapped to specific E_ or other constant values in code...and can be looked up in the docs. But here, we are making up a bogus interface, and interfaces have tags, or GUIDS (Globally Unique IDs) which tell COM which interface you want. As far as I know all the function's arguments are evaluated before the actual function call is made. Print Hresult C++ To check if a call that returns an HRESULT succeeded, make sure the S field is 0 (i.e.
However both Win32 and COM produce extremely "techie", unhelpful error messages and I nearly always find that they require massaging if they are going to be of any help to a Convert Hresult To String Thank you. Error code = 0x" << hex << hr << endl; string hexerrorcode = ?; CoUninitialize(); return 0; } I am not sure how to put it into string. These values are also defined in the corresponding header (.h) files with the Microsoft Windows Platforms SDK or DDK.
Consult the Dunn, above, if you need help with what I am doing. Hresult Facility Codes Access Microsoft's error code lookup utility (ErrLook.exe) with Microsoft Visual Studio by doing one of the following: In Visual Studio, click Tools, External Tools, and click Add. I asked my friends and one of them told me I needed to run a dependency tracker (Who knew?). If at all the problem comes just make a workover.
Convert Hresult To String
Brian Hart Sincerely Yours, Brian Hart Department of Physics and Astronomy University of California, Irvine Sign In·ViewThread·Permalink One problem this article does not solve. http://blog.euphemos.com/2005/04/18/hresults-and-win32-error-codes-introduction/ Copy and paste the last three digits (208) from the hexadecimal code you received in the errlook.exe utility. Hresult Formatmessage Remember, we want to see how to easily trap errors, especially from HRESULTs. Hresult Values Win32 Error Codes Sam Sign In·ViewThread·Permalink Re: Very good Brian Hart21-Feb-06 9:13 Brian Hart21-Feb-06 9:13 Sam NG wrote:"Error initialize the program" seem good enough for general users but it won't help in finding
This exception is thrown by the .NET runtime, where it can be handled by using a Try, Catch, Finally block. this content There are Firefox-extensions available to quickly open a page in Internet Explorer… so please do not worry so much about the anti-VML crowd! This can be used on any HRESULT value, and is - in general - a good way to determine if your COM call wasn't successful. Hence there is no simple answer. Convert Ntstatus To Win32 Error
A possible way to overcome the terseness aspect is to add extra text to the error message; i.e. Let the message board below be a 'forum' for discussion on this subject. HRESULTs have facility bits. http://ogdomains.com/error-code/convert-error-code-to-hex.php I moved on to C# and have been working in C# and Windows Forms ever since.
Besides, you create the new problem that a base header file (winerror.h) is being shipped "out of band".
value that isn't even in the range of documented win32 error codes when there is an obvious exact match it should have made. –Andrew Arnott Jan 7 at 3:57 add a How might a government pass a law without the population knowing? There's also more to adding an error code to the system than just getting a number assigned. -Raymond] Ashleigh says: November 4, 2006 at 4:55 am Take a look at the Make_hresult Get the error, Convert the error, and Look up the error.
Discussion It's worth discussing this particular approach to error-handling, and in particular cases in which it's not a good idea. And to give Raymond the biggest reason against the system that I can think of: if Microsoft picked this system blindly, they would be "polluting" RCS: they would be shipping files The line beginning with a call to AfxMessageBox() displays the following message box - shown below in Figure 2 - when the Call Win32 Function And Get Error button, in Figure check over here Happy New Year!
Hmm. –c00000fd Mar 6 '14 at 19:21 add a comment| 1 Answer 1 active oldest votes up vote 1 down vote accepted This is the helper function we use in-house to The facility code identifies the area of the system responsible for the error. Detailed instructions for the number conversions that are often necessary when working with HRESULTs is also provided. Karim Sign In·ViewThread·Permalink Nice article.
It's ironic that Microsoft, known for such books as The Windows User Interface Guidelines for Software Design - which sternly lectures readers to make error messages helpful and to not blame Examples 0x80070005 8 - Failure 7 - Win32 5 - "E_FAULT" 0x80090032 8 - Failure 9 - SSPI 32 - "The request is not supported" References ^ a b MSDN Windows Dmitry Streblechenko says: November 3, 2006 at 12:44 pm Speaking of error codes, the Exchange error lookup utility http://www.microsoft.com/downloads/details.aspx?familyid=be596899-7bb8-4208-b7fc-09e02a13696c&displaylang=en is worth its weight in gold… It is not at all Exchange The ID string starts off like this: $Id$ and is converted by RCS to look like this: $Id:zzzzzzz$ where zzzzz is the id number.
A poster to the message board, Doug Scmidt, and to this article, cautions against the temptations to do things in one line. Using _com_error in your application To illustrate how to use the _com_error class in your application, I used the MFC AppWizard to whip up a little, dialog-based sample program called SimpleErrors. When HRESULTs are displayed, they are often rendered as an unsigned hexadecimal value, usually indicated by a 0x prefix. Click the Dec radio button.
Managing out of band releases is a major headache. -Raymond] Paul Dougherty says: November 4, 2006 at 8:59 pm VxDs had an ID code range issue too. (ID codes are used LocalFree( lpMessageBuffer ); FreeLibrary(Hand); } share|improve this answer edited Jul 18 '15 at 20:57 answered Jul 17 '15 at 18:52 Ian Boyd 86.9k151535864 add a comment| up vote 1 down vote Do what makes sense for your application Several posters to this article (below) have made very insightful comments and I welcome any and all feedback on this approach. You can also use a tool called ERR.EXE to take the value and translate it to the corresponding error string.
BryanK says: November 13, 2006 at 9:38 am Because Win32 isn't COM, and HRESULTs are a COM thing. ;-) Error Codes: Win32 vs.