C# Get Win32 Error Message
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Not A Valid Win32 Application Error Message
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C# Win32 Error Codes
just like you, helping each other. Join them; it only takes a minute: Sign up Getting the Windows System Error Code title/description from it's hex number up vote 18 down vote favorite 6 I'm messing around with
Generic Host Process For Win32
some windows functions using p/invoke. Occasionally, I get an error code that is not ERROR_SUCCESS (such an odd name). Is there a way to look these up within the program? Forexample, if I get error 1017. Can I tell the user The system has attempted to load or restore a file into the registry, but the specified file is not in a registry file format. (ERROR_NOT_REGISTRY_FILE: 0x3F9) Instead of Error Code: 1017 c# .net c# microsoft win32 windows pinvoke share|improve this question asked Oct 30 '09 at 16:19 Malfist 13.5k43141248 add a comment| 4 Answers 4 active oldest votes up vote 58 down vote accepted I'm not sure if there's a niifty .NET wrapper, but you could call the FormatMessage API using P/Invoke. See this answer for how it would normally be called from native code. Though the question refers to grabbing error codes from HRESULTs, the answer also applies for retreiving codes from the regular OS error codes coming from GetLastError/GetLastWin32Error). EDIT: Thanks Malfist for pointing me to pinvoke.net, which includes alternative, managed API: using System.ComponentModel; string errorMessage = new Win32Exception(Marshal.GetLastWin32Error()).Message; Console.WriteLine(errorMessage); share|improve this answer edited Dec 16 '15 at 5:08 Mark Lakata 9,88035369 answered Oct 30 '09 at 16:23 Nick Meyer 19.7k94665 2 pinvoke.net/default.aspx/kernel32/FormatMessage.html Says never to use FormatMessage –Malfist Oct 30 '09 at 16:33 @Malfist, thanks for pointing that out. There is a reply there that says it's okay as long as you're using Marshal.GetLastWin32Error to retrieve the error code. Nonetheless, it looks like Win32Exception is a better solution. –Nick Meyer Oct 30 '09 at 16:41 1 Note, though, that both of these solutions only get the descriptive error message; neither of these will get you the capitalized error name with underscores that you see in documentation (such as ERROR_NO
resources Windows c# win32 api Server 2012 resources Programs MSDN subscriptions Overview java win32 Benefits Administrators Students Microsoft Imagine Microsoft Student Partners ISV Startups c# win32 dlls using p/invoke TechRewards Events Community Magazine Forums Blogs Channel 9 Documentation APIs and reference Dev centers Retired content http://stackoverflow.com/questions/1650838/getting-the-windows-system-error-code-title-description-from-its-hex-number Samples We’re sorry. The content you requested has been removed. You’ll be auto redirected in 1 second. System.Runtime.InteropServices Marshal Class Marshal Methods Marshal Methods GetLastWin32Error Method GetLastWin32Error Method GetLastWin32Error Method AddRef Method AllocCoTaskMem https://msdn.microsoft.com/en-us/library/system.runtime.interopservices.marshal.getlastwin32error(v=vs.110).aspx Method AllocHGlobal Method AreComObjectsAvailableForCleanup Method BindToMoniker Method ChangeWrapperHandleStrength Method CleanupUnusedObjectsInCurrentContext Method Copy Method CreateAggregatedObject Method CreateWrapperOfType Method DestroyStructure Method FinalReleaseComObject Method FreeBSTR Method FreeCoTaskMem Method FreeHGlobal Method GenerateGuidForType Method GenerateProgIdForType Method GetActiveObject Method GetComInterfaceForObject Method GetComInterfaceForObjectInContext Method GetComObjectData Method GetComSlotForMethodInfo Method GetDelegateForFunctionPointer Method GetEndComSlot Method GetExceptionCode Method GetExceptionForHR Method GetExceptionPointers Method GetFunctionPointerForDelegate Method GetHINSTANCE Method GetHRForException Method GetHRForLastWin32Error Method GetIDispatchForObject Method GetIDispatchForObjectInContext Method GetITypeInfoForType Method GetIUnknownForObject Method GetIUnknownForObjectInContext Method GetLastWin32Error Method GetManagedThunkForUnmanagedMethodPtr Method GetMethodInfoForComSlot Method GetNativeVariantForObject Method GetObjectForIUnknown Method GetObjectForNativeVariant Method GetObjectsForNativeVariants Method GetStartComSlot Method GetThreadFromFiberCookie Method GetTypedObjectForIUnknown Method GetTypeForITypeInfo Method GetTypeFromCLSID Method GetTypeInfoName Method GetTypeLibGuid Method GetTypeLibGuidF
Ask a Question Need help? Post your question and get tips & solutions from a community of 418,461 IT Pros & Developers. It's quick & https://bytes.com/topic/c-sharp/answers/225714-how-do-you-get-text-description-last-win32-error easy. How do you get a text description of the last Win32 error? P: n/a Will Pittenger I see System.Runtime.InteropServices.Marshal.GetLastWind 32Error, but I see no method to get a string based on that error. Do http://www1.cs.columbia.edu/~lok/csharp/refdocs/System.ComponentModel/types/Win32Exception.html I need to use the Win32 function FormatMessage? If so, that defeats the purpose of C# having GetLastWin32Error. Since FormatMessage does so many things besides look up error messages, it tends to be a error message bit of a burden even in C++. I hate to think of what calling it would be like under C#. ---------- Will Pittenger E-Mail: mailto:wi************@verizon.net All mail filtered by Qurb (www.qurb.com) Nov 15 '05 #1 Post Reply Share this Question 1 Reply P: n/a Mattias Sjögren Will, I see System.Runtime.InteropServices.Marshal.GetLastWind 32Error, but I seeno method to get a string based on that error. Do I need to use the Win32function c# get win32 FormatMessage? No, you can do Win32Exception ex = new Win32Exception(); string errMsg = ex.Message; The Win32Exception class internally checks GetLastWin32Error and retrieves the corresponding error message. Mattias -- Mattias Sjögren [MVP] mattias @ mvps.org http://www.msjogren.net/dotnet/ Please reply only to the newsgroup. Nov 15 '05 #2 This discussion thread is closed Start new discussion Replies have been disabled for this discussion. Similar topics win32 error Where is the part to set when my mouse pointer move to textbox or label or buton it will display text description ? text/xml reporting service error error moving table to tablespace (8.0 beta win32 ) Find out when text file last saved Can I enter a two-line text description on a button can't run aspnet_setreg on xp i get a "not valid win32 error" How to get text description of an asp error One last try. Error when using #include file= Browse more C# / C Sharp Questions on Bytes Question stats viewed: 8621 replies: 1 date asked: Nov 15 '05 Follow this discussion BYTES.COM © 2016 Formerly "TheScripts.com" from 2005-2008 About Bytes | Advertise on Bytes | Contact Us Sitemap | C# / C Sharp Answers Sitemap | C# / C Sharp Insights Sitemap Follow us to get the Latest Bytes Updates
Win32 error codes are translated from their numeric representations into a system message when they are displayed. Use Win32Exception.NativeErrorCode to access the numeric representation of the error code associated with this exception. For information about the error codes, see "Win32 Error Codes" in the Platform SDK or in MSDN. Example The following example shows how to catch a Win32 exception and interpret its content. The sample attempts to start a nonexisting executable which results in throwing a Win32 exception. Upon catching the exception, the sample fetches the respective error message, code, and origin of the exception. Win32Exception myEx=new Win32Exception(-2147467259); Console.WriteLine(myEx.Message); Console.WriteLine(myEx.ErrorCode); Console.WriteLine(myEx.HelpLink); Console.WriteLine(myEx.Source); See also: System.ComponentModel Namespace System.ComponentModel.Win32Exception Member List: Public Constructors ctor #1 Overloaded:.ctor()
Default constructor. This constructor is called by derived class constructors to initialize state in this type. Initializes a new instance of the Win32Exception class with the last Win32 error that occurred. ctor #2 Overloaded:.ctor(int error)
Initializes a new instance of the Win32Exception class with the specified error. ctor #3 Overloaded:.ctor(int error, string message)
Initializes a new instance of the Win32Exception class with the specified error and the specified detailed description. Public Properties ErrorCode(inherited from System.Runtime.InteropServices.ExternalException) Read-onlySee base class member description: System.Runtime.InteropServices.ExternalException.ErrorCode Gets the HRESULT of the error. HelpLink(inherited from System.Exception) Read-writeSee base class member description: System.Exception.HelpLink Gets or sets a link to the help file associated with this exception. InnerException(inherited from System.Exception) Read-onlySee base class member description: System.Exception.InnerException Gets the Exception instance that caused the current exception. Message(inherited from System.Exception) Read-onlySee base class member descrip