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Get Last Error Msdn


More over, the one from MSDN even couldn't compile. You'll jump to the page if it exists, or you can create it if it doesn't. std::string GetLastErrorAsString() { //Get the error message, if any. Easy on brain –Sreekar Jun 10 '15 at 6:24 add a comment| up vote 18 down vote MSDN has some sample code that demonstrates how to use FormatMessage() and GetLastError() together: news

The function requires a message definition as input. CWin32Error MyFunction( void ) { if( ! History of science and philosophy continue to remain his other interests. If Windows still cannot find the network path, contact your network administrator. ERROR_DUP_NAME 52 (0x34) You were not connected because a duplicate name exists on the network.

Formatmessage Getlasterror

If you want to recieve a system defined error string you can use the FormatMessage API, as done here. –Billy ONeal Dec 21 '10 at 15:04 @Tom: Check DACLs Because these codes are defined in WinError.h for anyone to use, sometimes the codes are returned by non-system software. Time to display: 0.13489 »|« RT 4.0.18 Copyright 1996-2013 Best Practical Solutions, LLC. 12,537,371 members (60,043 online) Sign in Email Password Forgot your password? LocalFree(messageBuffer); return message; } share|improve this answer edited Jul 18 '15 at 0:05 answered Jun 30 '13 at 4:32 Jamin Grey 4,57012133 1 I believe you actually need to pass

Documentation GetLastError on MSDN Please edit this page! TRACE( "%s\n", e ); and not TRACE( "%s\n", e.c_str() ); Helps in taking advantage of the exception-handling features of the C++ language. The calling function then can call GetLastError to retrieve the error code. Getlasterror String However, these values are provided with these warnings: This service is sponsored and maintained by Best Practical Solutions and runs on Perl.org infrastructure.

return; } // other code ... } CWin32Error Features Is an incredibly small but enourmously useful C++ class. Essentially, it takes any error you would normally call GetLastError() on, or any HRESULT from a COM call, and will give you the text equiv. See ASP.NET Ajax CDN Terms of Use – http://www.asp.net/ajaxlibrary/CDN.ashx. ]]> current community chat Stack Overflow Meta Stack Overflow your https://msdn.microsoft.com/en-us/library/windows/desktop/ms680582(v=vs.85).aspx Can cats leave scratch marks on cars?

Filter columns basing on the value of other column Can cats leave scratch marks on cars? Windows Error Codes Lookup The following list describes system error codes (errors 0 to 499). If you are defining an error code for your application, set this bit to one. Pass objects to TRACE as they are - you don't have to call object.c_str() method or so.

Getlasterror Example C++

C++ Information Tutorials Reference Articles Forum Forum BeginnersWindows ProgrammingUNIX/Linux ProgrammingGeneral C++ ProgrammingLoungeJobs Home page | Privacy policy© cplusplus.com, 2000-2016 - All rights reserved - v3.1Spotted an error? No new replies allowed. Formatmessage Getlasterror The System Error Codes are very broad. Getlasterror Codes i'm not copying to a special folder –Tom Dec 21 '10 at 15:04 The OP only asked about one type of error. –Puppy Dec 21 '10 at 15:04

It doesn't support Unicode - you can rewrite it to use std::wstring and FormatMessageW() - but I don't work with Unicode or Widechars myself, so I wouldn't know for sure how When error occured,Dll function use the SetLastError function to set an error code. asked 7 years ago viewed 51878 times active 1 year ago Get the weekly newsletter! Yes No Additional feedback? 1500 characters remaining Submit Skip this Thank you! Getlasterror 2

if( AlertUser( dwErr ) ) { // This form of CWin32Error ctor does NOT call // ::GetLastError(). As I'm using Dev-C++, I linked with libkernel32.a but the above mentioned code is compiling with errors. In it, you'll get: The week's top questions and answers Important community announcements Questions that need answers see an example newsletter By subscribing, you agree to the privacy policy and terms i'm getting the "can't do that" but i don't know why..

Do you think that calling a lot of constructors for this class is free? 3. What Is Error Code -50 However, several of its possible return values are based on pre-Win32 error codes, which in some cases overlap the later Winerror.h values without matching their meaning. Syntax C++ Copy DWORD WINAPI GetLastError(void); Parameters This function has no parameters.

Check to ensure the target is not readonly.

If you have additional suggestions regarding the System Error Codes documentation, given the constraints enumerated at the top of the page, please click the link labeled "Send comments about this topic SomeWin32API()) { // ::GetLastError() and ::FormatMessage() // automatically get called during construction. // Catch by value or by ref--the code stays the same. // Smart copying means you can rethrow the Jun 5, 2008 at 1:31pm UTC Amag (8) Sorry I took too much time to react. Windows Error Codes 0x Visual Basic:  Applications should call err.LastDllError instead of GetLastError.

Anyone Understand how the chain rule was applied here? To obtain support for a Microsoft product, go to http://support.microsoft.com. Insert %2 (Volume Serial Number: %3) into drive %1. ERROR_SHARING_BUFFER_EXCEEDED 36 (0x24) Too many files opened for sharing. ERROR_HANDLE_EOF 38 (0x26) Reached the end of the file. ERROR_HANDLE_DISK_FULL If your application needs more details about an error, it can retrieve the last-error code using the GetLastError function and display a description of the error using the FormatMessage function.

Second, see http://msdn.microsoft.com/en-us/library/bb762164(VS.85).aspx: Returns zero if successful; otherwise nonzero. It includes some strsafe.h header, that isn't safe at all, it causing a bunch of a compiler errors in winuser.h and winbase.h. –Hi-Angel Aug 12 '14 at 14:55 add a comment| Earlier, he did a Diploma in Advanced Computing from C-DAC, Pune (1994), an MTech from IIT Madras (1987), and a Distinction Class BE from COEP, Pune (1983). more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed

Sometimes the code is returned by a function deep in the stack and far removed from your code that is handling the error. Is there a role with more responsibility?