Matrix1 Utility Plug-ins

Matrix1Util_22

This plug-in provides a more comprehensive replacement for the original file commands within DBPro.

Using these commands you can open a file for reading, writing or updating, jump around the file as you require, read/write strings in various formats, as well as read/write the standard DBPro data types.

Open and close files

CLOSE DATAFILE	- Close an open datafile
DATAFILE RESERVED
FIND FREE DATAFILE
OPEN DATAFILE TO APPEND	- Open a file to append
OPEN DATAFILE TO READ	- Open a file for reading
OPEN DATAFILE TO UPDATE	- Open a file for read/write
OPEN DATAFILE TO WRITE	- Open a new file for read/write
RELEASE RESERVED DATAFILE
RESERVE FREE DATAFILE

Read and Write data

DATAFILE BOOLEAN	- Read a Boolean
DATAFILE BYTE	- Read a byte
DATAFILE DATASTRING	- Read a number of bytes into memory and returns them as a string
DATAFILE DOUBLE FLOAT	- Read a Double Float
DATAFILE DOUBLE INTEGER	- Read a Double Integer
DATAFILE DWORD	- Read a dword
DATAFILE FLOAT	- Read a Float
DATAFILE INTEGER	- Read an Integer
DATAFILE MEMORY	- Read a number of bytes into memory
DATAFILE STRING$	- Read a string
DATAFILE WORD	- Read a word
SET DATAFILE SIZE	- Sets the size of the datafile
WRITE DATAFILE BOOLEAN	- Write a Boolean
WRITE DATAFILE BYTE	- Write a Byte
WRITE DATAFILE DATASTRING	- Write bytes from memory
WRITE DATAFILE DOUBLE FLOAT	- Write a Double Float
WRITE DATAFILE DOUBLE INTEGER	- Write a Double Integer
WRITE DATAFILE DWORD	- Write a dword
WRITE DATAFILE FLOAT	- Write a Float
WRITE DATAFILE INTEGER	- Write an Integer
WRITE DATAFILE MEMORY	- Write bytes from memory
WRITE DATAFILE STRING	- Write a String
WRITE DATAFILE WORD	- Write a Word

File Information

DATAFILE END	- Check if End-of-file has been reached
DATAFILE ERROR	- Check if an error has occurred
DATAFILE EXIST	- Check if a file number is in use
DATAFILE MODE	- Get the current mode of the file

File Settings

DATAFILE FLUSH	- Force writes to disk
DATAFILE POSITION	- Get current position within a file
DATAFILE SIZE	- Get current file size
DATAFILE SKIP	- Seek via an offset
DATAFILE STRING TYPE	- Get or set string type for reading/writing
SET DATAFILE POSITION	- Seek within a file

Changing directories

DIR STACK SIZE	- Gets the number of entries on the internal directory stack
DROP DIR	- Remove the top entry from the internal directory stack
GET DIR TOP$	- Gets the directory location of the top item on the internal directory stack
POP DIR	- Takes the previous directory off of the internal directory stack and makes it the current directory
PUSH DIR	- Pushes the currect directory location onto an internal stack

File Utility commands/functions

EXPAND PATH$	- Converts a filename or directory name to a full pathname.
FILE CREATION TIMESTAMP$
FILE IN USE
FILE MODIFICATION TIMESTAMP$
TIMESTAMP$

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