Unit ODFileUnit |
------------------------------------------------------------------------------ ODFileUnit.Pas Copyright (C) 1997 Object Dynamics Ltd. // This unit implements classes supporting file I/O using Win32 I/O functions, and a "C-like" I/O style. It is intended to be somewhat easier to use than the built-in Pascal file I/O mechanisms. // // *** IMPORTANT *** // By using this code, you accept the following conditions: // You may use and adapt this code freely, but it remains the copyright of Object Dynamics Ltd. Any adaptations must retain the copyright message at the head of this file. // You use this code at your own risk. Object Dynamics is not responsible for any loss or damage caused by programs using this code. // // History: // Version 1.0 Created by Neil Butterworth, September 1997 Fixed problems with file create modes, November 1997. // ------------------------------------------------------------------------------
Classes |
RandomAccessFile - This class supports random access to fixed-sized records.
RawFile - RawFile implements simple binary file with seeking & locking abilities.
TextFile - The TextFile class implements access to files consisting of lines of text.
TFBuffer - Text file buffer.
Functions |
Types |
FileCreateOption
FileHandle
FileOpenMode
FileSeekFrom
FileShareMode
TextFileOpenMode
TextFileShareMode
Constants |
Variables |
Functions |
Types |
FileCreateOption = ( fcNew, // always creates a new file fcExisting, // file must already exist fcAlways // file will be created if it doesn't // exist, else it will be opened );file can be shared for any access
FileHandle = integerWindows file handle
FileOpenMode = ( foRead, // open file read-only foWrite, // open file write-only foReadWrite // open for both );Raw file modes
FileSeekFrom = ( sfStart, // seek from start sfEnd, // seek from end sfHere // seek from current position );file will be created if it doesn't exist, else it will be opened
FileShareMode = ( fsNoShare, // file cannot be shared fsShareRead, // file can be shared for reading fsShareWrite, // file can be shared for writing fsShared // file can be shared for any access );open for both
TextFileOpenMode = ( toRead, // open for reading toReWrite, // open for overwrite existing contents toAppend // open for append to existing contents );Text file modes
TextFileShareMode = ( smShare, // open shared (for read only) smNoShare // open single user );open for append to existing contents
Constants |
Variables |