Operating System

The following functions manipulate file and operating system features:

CHDIR	Change the current (default) directory on a given drive.
CHDRIVE	Change the current default drive.
CLIPBOARD GET BITMAP	A bitmap is copied from the CLIPBOARD and stored in a newly created GRAPHIC BITMAP.
CLIPBOARD GET OEMTEXT	A text string is retrieved from the CLIPBOARD. If necessary, it is converted to OEM Text format.
CLIPBOARD GET TEXT	A text string is retrieved from the CLIPBOARD. If necessary, it is converted to ASCII Text format.
CLIPBOARD GET UNICODE	A text string is retrieved from the CLIPBOARD. If necessary, it is converted to Unicode Text format.
CLIPBOARD RESET	The contents of the CLIPBOARD are deleted.
CLIPBOARD SET BITMAP	Copies a GRAPHIC BITMAP to the CLIPBOARD.
CLIPBOARD SET OEMTEXT	Copies a OEM text string to the CLIPBOARD.
CLIPBOARD SET TEXT	Copies a ASCII text string to the CLIPBOARD.
CLIPBOARD SET UNICODE	Copies a Unicode text string to the CLIPBOARD.
COMMAND$	Return the command-line used to start the program.
CURDIR$	Return the current directory for a given drive.
DATE$	Set and retrieve the system date.
DESKTOP GET CLIENT	Retrieve the size of the client area of the desktop, in pixels.
DESKTOP GET LOC	Retrieve the location of the top, left corner of the client area of the desktop, in pixels.
DESKTOP GET SIZE	Retrieve the size of the entire desktop, in pixels.
DIR$	Return a filename that matches the given mask.
DIR$ CLOSE	Force the release the operating system FindNext handle.
DISKFREE	Return the amount of available space of a disk, in bytes.
DISKSIZE	Return the total amount of space on a disk, in bytes.
DISPLAY BROWSE	Display a folder selection dialog to return the user's choice.
DISPLAY COLOR	Display a color selection dialog to return the user's choice.
DISPLAY FONT	Display a selection dialog to return user choices.
DISPLAY OPENFILE	Display an OpenFile selection dialog to return user choices.
DISPLAY SAVEFILE	Display a SaveFile selection dialog to return user choices.
ENVIRON	Modify the current program's environment table.
ENVIRON$	Retrieve strings from the operating system's environment table.
EXE.Inst	Returns the instance handle of the programming which is currently executing.
EXE.Extn$	Returns the extension of the program which is currently executing.
EXE.Full$	Returns the complete drive, path, and file name of the program which is currently executing.
EXE.Name$	Returns just the file name of the program which is currently executing.
EXE.Namex$	Returns the file name and the extension of the program which is currently executing.
EXE.Path$	Returns the complete drive and path of the program which is currently executing.
FILEATTR	Return information about an open file.
FILECOPY	Copy a file.
FILENAME$	Return the file-system name of an open file.
FLUSH	Flush file buffers to disk to ensure the disk information is current.
GETATTR	Return the file-system attribute(s) of a disk file or directory.
HOST ADDR	Translate a host name into a corresponding IP address.
HOST NAME	Translate an IP address into a corresponding host name.
ISFILE	Determine whether or not a file exists.
KILL	Delete a disk file.
METRICS	Retrieves information or dimensions of system elements.
MKDIR	Create a subdirectory/folder (like the DOS MKDIR command).
NAME	Rename a file or a directory (like the DOS REN command).
OPEN	Prepare a file or device for reading or writing.
PATHNAME$	Parse a path/file name to extract component parts.
PATHSCAN$	Find a file on disk and return the path and/or file name parts.
RGB	Return a composite RGB color value.
RMDIR	Delete a disk directory (like the DOS RMDIR command).
SETATTR	Set the file system attribute(s) of a disk file or directory.
SETEOF	Truncate/extend a file to its current file pointer position.
SHELL	Launch an executable program asynchronously.
SHELL	Launch an executable program synchronously.
SLEEP	Pause the current thread for a specified number of milliseconds.