Assembly Language Help (alang.hlp) (Table of Contents; Topic list)
Important Notice
The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
Device and File Control
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     Macro            Description
 
     @Read            Reads data from a file or device
     @Write           Writes data to a file or device
     @MakeFile        Creates a file
     @OpenFile        Opens a file for input or output
     @CloseFile       Closes an open file handle
     @DelFile         Deletes a specified file
     @MoveFile        Moves or renames a file
     @GetFirst        Gets first matching file
     @GetNext         Gets additional matching files
     @GetDTA          Gets the Disk Transfer Address (DTA)
     @SetDTA          Sets the Disk Transfer Address (DTA)
     @GetFileSize     Gets the file size
     @MovePtrAbs      Moves file pointer to absolute position
     @MovePtrRel      Moves file pointer to relative position
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