C++: Which is the best method of checking for file existence on windows platform [duplicate]

Answer 1

Note that GetFileAttributes() may fail for other reasons than lack of existence (for example permissions issues). I would add a check on the error code for robustness:

GetFileAttributes("C:\\MyFile.txt"); // from winbase.h
if(INVALID_FILE_ATTRIBUTES == GetFileAttributes("C:\\MyFile.txt") && GetLastError()==ERROR_FILE_NOT_FOUND)
{
    //File not found
}