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Windows Error Code

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So under some circumstances the CLR inserts a Win32 call, under others i doesn't. You want to use GetlastError hack, possibly it will always work, but this is still hack. NerdyHearn - Latest tech news relating to C#, ASP.NET, SharePoint, PHP, general development, and more. Catch ex As COMException New ComponentModel.Win32Exception(CType(ex, Runtime.InteropServices.COMException).ErrorCode).Message End Try Reply Follow UsPopular TagsSecurity CAS Cryptography Under the Hood Windows StrongName Policy Other ClickOnce Pages Debugging XML Visual Studio CLR v4 SSCLI check over here

Now what @Bitterblue found is that these "inserted calls" don't happen often - he couldn't find any. This would be a problem in C++ for instance where you can't depend on the order of the parameters being passed (i.e., you can't reliably pass "GetLastError()" as the first arg Error codes are 32-bit values (bit 31 is the most significant bit). But anyone didn't convince you to use GetLastWin32Error. –0123456789 Jul 31 '13 at 7:29 | show 1 more comment 3 Answers 3 active oldest votes up vote 39 down vote accepted

Windows Error Code

Because these codes are defined in WinError.h for anyone to use, sometimes the codes are returned by non-system software. Not the answer you're looking for? If you're using VB.Net, Err.LastDllError is also an acceptable way of accessing the last error code. C#VB Copy using System; using System.Runtime.InteropServices; internal class Win32 { // Use DllImportAttribute to inport the Win32 MessageBox // function.

In the Win32 world, you'd probably call the FormatMessage API next to get a meaningful message describing what error 123 means. Now if the GC were to execute a failing Win32 call, this would break your call to GetLastError. Here is an example which produces different results: using System.IO; using System.Runtime.InteropServices; public class ForceFailure { [DllImport("kernel32.dll")] public static extern uint GetLastError(); [DllImport("kernel32.dll", SetLastError = true)] private static extern bool SetVolumeLabel(string Windows Error Codes List Except for a couple of braindead API/situation combinations, like Impersonate* with the new SeImpersonatePrivilege: the API can return a success code even if it fails due to lack of privilege, leaving

Data in the file stream is corrupt. ERROR_INTERMIXED_KERNEL_EA_OPERATION 324 (0x144) An attempt was made to modify both a KERNEL and normal Extended Attribute (EA) in the same operation. ERROR_FILE_LEVEL_TRIM_NOT_SUPPORTED Return value The return value is the calling thread's last-error code. If you use the default constructor, it should get the value of the last win 32 error and also create the appropriate exception message. https://msdn.microsoft.com/en-us/library/windows/desktop/ms681382(v=vs.85).aspx It's quick & easy.

It could definitely be (e.g. Marshal Getlastwin32error C# To access that variable we need to use Marshal.GetLastWin32Error. Not the answer you're looking for? I just assumed as much and the docs basically say so but I didn't want to get tripped up with subtle problems later (since I'm relatively new to ..NET).

Windows Error Codes Lookup

Downloads and tools Windows 10 dev tools Visual Studio Windows SDK Windows Store badges Essentials API reference (Windows apps) API reference (desktop apps) Code samples How-to guides (Windows apps) Learning resources this page Occasionally, I get an error code that is not ERROR_SUCCESS (such an odd name). Windows Error Code Check your computer's system information and then contact the software publisher. ERROR_EXE_CANNOT_MODIFY_SIGNED_BINARY 217 (0xD9) The image file %1 is signed, unable to modify. ERROR_EXE_CANNOT_MODIFY_STRONG_SIGNED_BINARY 218 (0xDA) The image file Windows Error Codes 0x Because of this, you only have to worry about the code being changed if another call on the same thread makes another call through the P/Invoke layer.

As documented in Marshal.GetLastWin32Error Method, if the framework itself (e.g. http://edvinfo.com/error-code/windows-error-codes-lookup.html Therefore, never define a PInvoke signature for GetLastErrorfrom kernel32.dll. If it runs between the call of SetVolumeLabel and the call of GetLastError then you will receive the wrong value, because the GC has surely overwritten the last result. Marshal.GetLastWin32Error() P: n/a Larry Smith Hi there, Does anyone know if this (example) is safe: [DllImport("user32.dll", SetLastError = true)] internal static extern int GetWindowRect(IntPtr hWnd, ref RECT rect); int rc = Error Code List

As others have said, there is no way to get those capitalized, underscored names, short of looking them up in winerror.h, which I have seen reproduced online in various places where So you could actually change the code to the following to get the same result: if (SetVolumeLabel("XYZ:\\", "My Imaginary Drive ")) System.Console.WriteLine("It worked???"); else throw new For PInvoke, the solution is two-fold: 1)Mark the relevant PInvoke signature with SetLastError=true. http://edvinfo.com/error-code/windows-error-codes-list.html share|improve this answer answered Oct 9 '15 at 21:53 David A.

Tags CSharp CPP PInvoke Win32 Related Blogs Generic Method for Loading Interfaces in C# (For a Plugin System) Creating High Quality Images with C# and GDI Retrieving data from SharePoint SOAP What Is Error Code -50 I'm still experimenting but I want to capture context info at the time of call (the parameters that caused the failure for instance). It does the exact same thing as Marshal.GetLastWin32Error.

If you use the default constructor, it shouldget the value of the last win 32 error and also create the appropriateexception message.

If you use the default constructor, it should get the value of the last win 32 error and also create the appropriate exception message. Why? share|improve this answer answered Jul 29 '13 at 7:57 cremor 4,7941344 I checked GC but can't see any problem yet. Getlastwin32error Message You should store the error if you are going to perform an operation which could possibly change it, and you need it for later.

See ASP.NET Ajax CDN Terms of Use – http://www.asp.net/ajaxlibrary/CDN.ashx. ]]> | Search MSDN Search all blogs Search this blog For anyone who lands here and is wondering about that, I recently asked a question specifically about how to programmatically determine those error names, and the answer turned out to be Of course you also need to remember to set the SetLastError named parameter on your DllImport attribute to true,and obtain the error code through a call to Marshal.GetLastWin32Error, since P/Invoking to have a peek at these guys Tags Windows Comments (5) Cancel reply Name * Email * Website Evgeny M says: September 12, 2004 at 1:15 am Something in the area, related to ComExceptions.