Files

Function OpenFile(fileName$, mode)

Returns an ID for an open file to read or write.

Returns -1 if the file could not be opened.

Possible Text Modes:

  • TEXT_INPUT - Open a file for reading text. The file must already exist.
  • TEXT_OUTPUT - Open a new file for writing text. If the file already exist it will be overwritten.
  • TEXT_APPEND - Opens a file for appending text to the end of the file. A file will be created if it doesn’t already exist
  • TEXT_INPUT_PLUS - Opens a file for reading and writing text. The file must already exist.
  • TEXT_OUTPUT_PLUS - Opens a file for both reading and writing. If the file already exist it will be overwritten.
  • TEXT_APPEND_PLUS - Opens a file for reading and appending text to the end of the file.
Sub CloseFile(stream)

Closes a file.

See also

OpenFile()

Function ReadByte(stream)

Reads a byte from a file.

Sub WriteByte(stream, byte)

Writes a byte to the file.

See also

WriteByteBuffer()

Function ReadLine$(stream)

Returns the current line in the file.

Sub Write(stream, txt$)

Writes a string to a file.

See also

WriteLine()

Sub WriteLine(stream, txt$)

Writes a string to a text file with a new-line appended at the end.

See also

Write(), ReadLine$()

Sub CopyFile(src$, dst$)

Copies the contents of src$ file to a new dst$ file.

Function RemoveFile(fileName$)

Removes a file.

Function FileExists(fileName$)

Returns true if a file exists.

Function MoveFile(src$, dst$)

Moves a file on the system.

Returns true if the file was able to be moved and false if it wasn’t.

RenameFile(src$, dst$)

Renames src$ file to dst$ file.

Function FileLength(fileName$)

Returns the size of a file in bytes.

Function Tell(stream)

Returns the current position within the file stream.

Function Seek(stream, pos)

Sets the position within a file to read from or write to.

See also

Tell()

Function EOF(stream)

Returns true when end of file is reached.

Function WriteByteBuffer(stream, ByRef buf, buf_size)

Writes a number of bytes from a buffer to the file stream.

Function ReadByteBuffer(stream, ByRef buf, buf_size)

Reads a number of bytes from a file stream to an array.

  • stream - A open file.
  • buffer - An array of bytes.
  • buffer_size - The number of bytes to write from buffer (This should be less than size of the buffer).

See also

ReadByte()