Commands :
SET BELL :
Toggle automatic sounding of the bell during full-screen operations
SET BELL on | OFF | <xlToggle>
SET COLOR :
Define screen colors
SET COLOR | COLOUR TO [ [<standard>] [, <enhanced>] [, <border>] [, <background> ] [, <unselected>]] | ( <cColorString> )
SET DEFAULT :
Set the default drive and directory
SET DEFAULT TO [ <xcPathspec> ]
SET FUNCTION :
Assign a character string to a function key
SET FUNCTION <nFunctionKey> TO <cString>
SET TYPEAHEAD :
Set the size of the keyboard buffer
SET TYPEAHEAD TO <nKeyboardSize>
Functions :
CURDIR() :
Return the current DOS directory
CURDIR( [ <cDrivespec> ] ) --> cDirectory
DISKSPACE() :
Return the space available on a specified disk
DISKSPACE( [ <nDrive> ] ) --> nBytes
FKLABEL()* :
Return function key name
FKLABEL( <nFunctionKey> ) --> cKeyLabel
FKMAX()* :
Return number of function keys as a constant
FKMAX() --> nFunctionKeys
GETENV() :
Retrieve the contents of a DOS environment variable
GETENV( <cEnvironmentVariable> ) --> cString
ISCOLOR() :
Determine if the current computer has color compatibility
ISCOLOR() | ISCOLOUR() --> lBoolean
MAXROW() :
Determine the maximum visible screen row
MAXROW() --> nRow
MAXCOL() :
Determine the maximum visible screen column
MAXCOL() --> nColumn
MEMORY() :
Determine the amount of available free pool memory
MEMORY( <nMemoryType> ) --> nKbytes
NOSNOW() :
Toggle snow position
NOSNOW( <lToggle> ) --> NIL
OS() :
Return the operating system name
OS() --> cOSName
SET() :
Inspect or change a global setting
SET( <nSpecifier>, [<expNewSetting>], [<lOpenMode> ] ) --> CurrentSetting
TONE() :
Sound a speaker tone for a specified frequency and duration
TONE( <nFrequency>, <nDuration> ) --> NIL
VERSION() :
Returns Clipper Compiler version
VERSION() --> cVersion