My girlfriend has mentioned disowning her 14 y/o transgender daughter How to indicate you are going straight? They are returned by the GetLastError function when many functions fail. How can I pull a wire through a pipe that has too many turns for fish tape? Home Consulting About Talks Open Source Win32 Errors: How to Format GetLastError() Output into Readable Strings November 13, 2013 I’ve been doing a moderate amount of native Win32 C++ programming over
As I'm using Dev-C++, I linked with libkernel32.a but the above mentioned code is compiling with errors. GetLastError returned " << std::hex << lastError << "."; } share|improve this answer answered Dec 21 '10 at 14:59 Billy ONeal 62.8k25206424 That only checks for one type of Multiplication by One So sayeth the Shepherd How does Coruscant get food? The error codes returned by a function are not part of the Windows API specification and can vary by operating system or device driver.
Why write an entire bash script in functions? The Return Value section of the documentation for each function that sets the last-error code notes the conditions under which the function sets the last-error code. Just provide the error code you need a textual description for. Getlasterror String How to list only files in a directory separated by commas How can you change "system fonts" in Firefox (to increase own safety & privacy)?
That's why I wrote the RaiseLastOsErrorEx and Win32CheckEx functions: procedure RaiseLastOsErrorEx(const _Format: string); begin RaiseLastOsErrorEx(GetLastError, _Format); end; procedure RaiseLastOsErrorEx(_ErrorCode: integer; _Format: string); overload; var Error: EOSError; begin if _ErrorCode <> ERROR_SUCCESS Getlasterror Example DWORD errorMessageID = ::GetLastError(); if(errorMessageID == 0) return std::string(); //No error message has been recorded LPSTR messageBuffer = nullptr; size_t size = FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, errorMessageID, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), If you are an end-user that is experiencing difficulty with an application you are installing or running, contact customer support for the software that is displaying the error message. Curiously, i'm using FormatMessage and not FormatMessageW –Adrian Preuss May 7 '14 at 1:09 | show 1 more comment Your Answer draft saved draft discarded Sign up or log in
Why gimbal only the inner cluster? System Error Codes (0-499) (0x0-0x1f3) System Error Codes (500-999) (0x1f4-0x3e7) System Error Codes (1000-1299) (0x3e8-0x513) System Error Codes (1300-1699) (0x514-0x6a3) System Error Codes (1700-3999) (0x6a4-0xf9f) System Error Codes (4000-5999) (0xfa0-0x176f) System Hot Network Questions My home country claims I am a dual national of another country, the country in question does not. You may also be interested in... Getlasterror 2
Bit 29 is reserved for application-defined error codes; no system error code has this bit set. Win32 weirdness. When was this language released? Thanks! –humbagumba Jun 9 '10 at 14:07 You really have to lose that static_cast, that just generates Chinese or one letter messages. –Hans Passant Jun 9 '10 at 14:28
So I did some research and got something on http://msdn.microsoft.com/en-us/library/ms679360 MSDN has suggested the following code: 1
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The main benefits of using this function is that it saves you from having to remember the syntax of FormatMessage, and that the memory reserved is tidied up. // Needs Windows Nginx - rewrite and pass_proxy to another port throws 404 not found Prime on the product symbol Unbounded operators defined only on dense subdomain of Hilbert space in QM? Notes: I like using ATL/MFC CString in Win32 code, I find it very convenient This code is designed for Unicode builds, e.g. Can filling up a 75 gallon water heater tank without opening a faucet cause damage?
Join them; it only takes a minute: Sign up What is the correct usage of GetLastError and FormatMessage in Delphi? Search Comments Profile popupsSpacing RelaxedCompactTight Layout NormalOpen TopicsOpen AllThread View Per page 102550 -- There are no messages in this forum -- Go to top Permalink | Advertise