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c# Programming Glossary: readfilehttp://stackoverflow.com/questions/13430210/insert-bytes-into-middle-of-a-file-in-windows-filesystem-without-reading-entir CharSet.Auto SetLastError true public static extern bool ReadFile SafeFileHandle hFile handle to file byte pBuffer data buffer.. overlapped new NativeOverlapped NativeMethods.ReadFile fileHandle buffer buffer.Length IntPtr.Zero ref overlapped Pin.. 32 overlapped.OffsetLow int seekIndex NativeMethods.ReadFile fileHandle mft_buffer mft_buffer.Length IntPtr.Zero ref overlapped..
Is IntPtr.Zero equivalent to null? http://stackoverflow.com/questions/1456861/is-intptr-zero-equivalent-to-null IntPtr.Zero equivalent to null I am trying to setup ReadFile to run asynchronously and according to MSDN I need to set lpNumberOfBytesRead.. true CharSet CharSet.Auto public static extern bool ReadFile IntPtr hFile out byte aBuffer int cbToRead IntPtr cbThatWereRead.. intention of having the 4th parameter being null Win32API.ReadFile readHandle out data_read Win32API.BUFFER_SIZE IntPtr.Zero ref..
c#: how to read parts of a file? (DICOM) http://stackoverflow.com/questions/2381983/c-how-to-read-parts-of-a-file-dicom all cases but it would be a starting point public void ReadFile string filename using FileStream fs File.OpenRead filename ..
File IO with Streams - Best Memory Buffer Size http://stackoverflow.com/questions/3033771/file-io-with-streams-best-memory-buffer-size that doesn't force FileStream to make the native Windows ReadFile API call to fill the buffer too often. Don't go below a kilobyte..
How to parse a text file in C# and be io bound? http://stackoverflow.com/questions/7153315/how-to-parse-a-text-file-in-c-sharp-and-be-io-bound Update I have included the PInvoke performance when I do a ReadFile with the complete buffer in one read to get the real performance... complete buffer in one read to get the real performance. ReadFile performance ReadFileIntoByteBuffer StringReader.ReadLine performance.. one read to get the real performance. ReadFile performance ReadFileIntoByteBuffer StringReader.ReadLine performance CountLines StringReader.Readline..
C# classes to undelete files? [duplicate] http://stackoverflow.com/questions/8819188/c-sharp-classes-to-undelete-files into the disk to get the information you want using ReadFile . Used to read in a file DllImport kernel32.dll public static.. in a file DllImport kernel32.dll public static extern bool ReadFile IntPtr hFile byte lpBuffer uint nNumberOfBytesToRead ref uint.. IOCTL_DISK_GET_DRIVE_GEOMETRY control code. uint read 0 ReadFile hDisk buffer bufferSize ref read IntPtr.Zero For NTFS first..
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