createfile

问题 The CreateFile function is useful for opening files or devices for read/write access, providing a handle. The third parameter, dwShareMode , specifies if the file/device can later be accessed by others. An example, with files: void* pFileHandle1 = ::CreateFileA("C:\\test.txt", GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, 0, OPEN_EXISTING, 0, 0); DWORD lastError = GetLastError(); // 0, ERROR_SUCCESS void* pFileHandle2 = ::CreateFileA("C:\\test.txt", GENERIC_READ|GENERIC_WRITE,

问题 Ok so I have the following vba code which I am using to check if a directory exists and if not create the folder structure like so: If Dir("S:\Tasks\" & Range("C" & ActiveCell.Row).Value & "\" & Range("M" & ActiveCell.Row).Value & "\" & Range("Z" & ActiveCell.Row).Value, vbDirectory) = "" Then MkDir Path:="S:\Tasks\" & Range("C" & ActiveCell.Row).Value & "\" & Range("M" & ActiveCell.Row).Value & "\" & Range("Z" & ActiveCell.Row).Value MsgBox "Done" Else MsgBox "found it" End If So my

问题 I wrote a simple check_file_ref function using WinAPI to check whether two paths reference the same file. The code is fine. It's compiled with Visual Studio 2017 in C (flag /TC ). The weird thing is CreateFileA (winapi) always fails when the executable is run under Visual Studio (ie execute without debugging), returning an invalid file handle. Otherwise, it works as expected when the executable is run outside of Visual Studio. The working dir is the same in any case. main.c: #include <stdio.h

问题 I wrote a simple check_file_ref function using WinAPI to check whether two paths reference the same file. The code is fine. It's compiled with Visual Studio 2017 in C (flag /TC ). The weird thing is CreateFileA (winapi) always fails when the executable is run under Visual Studio (ie execute without debugging), returning an invalid file handle. Otherwise, it works as expected when the executable is run outside of Visual Studio. The working dir is the same in any case. main.c: #include <stdio.h

问题 I have a line-oriented text file (Unicode) that was created using CreateFile() and WriteFile(). Reading that file as a binary stream using ReadFile() is straightforward, but extra low-level processing is needed to break it into lines. Is there a Win32 function that does this for me? Again, please note that it's in 'C' (not C++) and I don't want to use POSIX/ANSI C functions such as readline(). If the answer to the aforementioned question is negative, what would be the "shortest code" to

问题 This question already has an answer here : How to open COMXX files(serial port) (1 answer) Closed 5 years ago . I am trying to do some serial communication through my usb port (named COM15), and I am getting an error. This is the code where the error is occurring: HANDLE myPortHandle = CreateFile("COM15", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL); if (myPortHandle == INVALID_HANDLE_VALUE) { DWORD lastError = GetLastError(); cout<<"ERROR HERE! = "<<lastError<<endl; } Every

来源： https://stackoverflow.com/questions/57117675/azure-and-file-createtext-filenotfoundexception-could-not-find-file

来源： https://stackoverflow.com/questions/57117675/azure-and-file-createtext-filenotfoundexception-could-not-find-file

来源： https://stackoverflow.com/questions/57117675/azure-and-file-createtext-filenotfoundexception-could-not-find-file

问题 Till now my code works fine where I am creating file in temporary directory and processing it. But now I am trying to provide specific directory where I actually want to create xml file. So in method createTmpXmlFile private static Path createTmpXmlFile(final String prefix) { try { log.info("Creating temporary file {}{}", prefix, XML_SUFFIX); return Files.createTempFile(Paths.get(gleifZipFile), prefix, XML_SUFFIX); } catch (IOException e) { throw new IllegalStateException("Could not create