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You must always use the Marshal.GetLastWin32Error. The main problem is the garbage collector. 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.
2) Call Marshal.GetLastWin32Error (in System.Runtime.InteropServices) to retrieve the value that the CLR saved. Therefore, never define a PInvoke signature for GetLastError from kernel32.dll.
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Sep 10, 2004 · If you ever need to P/Invoke to an API that returns extended error information via the GetLastError function, then you’ve also probably been through the.
System Error Codes (0-499) (Windows) – MSDN – Microsoft – The following list describes system error codes (errors 0 to 499). They are returned by the GetLastError function when many functions fail. To retrieve the.
Marshal. GetLastWin32Error Method ().NET Framework (current version). // Get the last error and display it. int error = Marshal.GetLastWin32Error();.
May 24, 2013. Most of the time if some function returns a negative error code it is actually an uint value. Casting -1071241844 to uint gives 3223725452 which.
pinvoke.net: getlasterror (kernel32) – Call Marshal.GetLastWin32Error instead!. To retrieve the error message corresponding to this error code, Please edit this page!
System.Runtime.InteropServices.Marshal.GetLastWin32Error Method. Returns the error code returned by the last unmanaged function that was called using platform invoke that has the DllImportAttribute.SetLastError flag set.
c# – Getting the Windows System Error Code title/description from its. – Oct 30, 2009. Though the question refers to grabbing error codes from HRESULTs, the. OS error codes coming from GetLastError/GetLastWin32Error).
GetLastWin32Error exposes the Win32 GetLastError API method from Kernel32.DLL. If you want to access this error code, you must call GetLastWin32Error rather than writing your own platform invoke definition for GetLastError and calling it.
May 25, 2006 · I am familiar with Try/Catch error trapping but "GetLastError" is new to me. I’m not even sure that calling the GetLastWin32Error API is valid from the web.
//This code demonstrates the use of system error codes //and how to use transform them into C++ exceptions. // void __fastcall TForm2::btRaiseLastClick( TObject.
Jul 29, 2013. make the Framework store the error code for the use of Marshal. If you want to access this error code, you must call GetLastWin32Error.
GetLastWin32Error() == NativePipe.ERROR_PIPE_CONNECTED); 159int error = Marshal.GetLastWin32Error(); 197int error = Marshal.GetLastWin32Error(); 211int error.
GetLastWin32Error exposes the Win32 GetLastError function from Kernel32.DLL. This method exists because it is not safe to make a direct platform invoke call to GetLastError to obtain this information.