WebMar 27, 2001 · When error occured,Dll function use the SetLastError function to set an error code. The calling function then can call GetLastError to retrieve the error code. … WebJul 26, 2024 · If the function fails, the return value is NULL. To get extended error information, call GetLastError. Remarks After a file mapping object is created, the size of the file must not exceed the size of the file mapping object; if it does, not all of the file contents are available for sharing.

【Github】error: remote origin already exists--解决办法 - 知乎

WebDec 6, 2013 · From the documentation of CREATE_ALWAYS: If the specified file exists and is writable, the function overwrites the file, the function succeeds, and last-error code is set to ERROR_ALREADY_EXISTS (183). And from the documentation of CREATE_NEW: Creates a new file, only if it does not already exist. WebDec 18, 2013 · If CreateMutex () fails, or the mutex already exists, exit the app. Your change would bypass the "already exists" check if the mutex handle is not 0, as CreateMutex () returns a handle to an existing mutex. Remember, Delphi short-circuits Boolean expressions by default. – Remy Lebeau Dec 18, 2013 at 23:03 @Remy - Ok, it … grout station

C/C++ How to tell if a program is already running?

WebMay 3, 2011 · However, logger itself creates the last error and false feed back caused me a day. _file.open("log.txt", std::fstream::out std::fstream::trunc); this line generate … WebOct 1, 2010 · Another possibility is that the DLLMain of the DLL you are loading is trying to do something (e.g. create a file) which generates the ERROR_ALREADY_EXISTS, … WebJan 4, 2024 · check if mutex already exists, exit from app: if(GetLastError()==ERROR_ALREADY_EXISTS){// if this process created the mutex, exit the applicationif(hMutex&&GetLastError()==ERROR_ALREADY_EXISTS){CloseHandle(hMutex);return0;}} … film learning app