REXX Utility Functions

REXX Utility Functions

Function	OS/2	Windows	UNIX		Remarks
SysAddFileHandle	Y	Y		Adds to the number of file handles available to the current process.
SysAddRexxMacro	Y	Y	Y	Adds a routine to the REXX macrospace.
SysBootDrive	Y	Y		Returns the drive used to boot the operating system.
SysClearRexxMacroSpace	Y	Y	Y	Clears the REXX macrospace.
SysCloseEventSem	Y	Y	Y	Closes an event semaphore.
SysCloseMutexSem	Y	Y	Y	Closes a mutex semaphore.
SysCls	Y	Y	Y	Clears the screen.
SysCopyObject	Y			Copies an existing Workplace Shell object to the specified destination folder.
SysCreateEventSem	Y	Y	Y	Creates or opens an event semaphore.
SysCreateMutexSem	Y	Y	Y	Creates or opens an OS/2 mutex semaphore.
SysCreateObject	Y			Creates a new instance of an object class.
SysCreatePipe			Y	Creates an unnamed pipe.
SysCreateShadow	Y			Shadows an existing Workplace Shell object to the specified destination folder.
SysCurPos	Y	Y		Returns the cursor position and optionally moves the cursor to a new location.
SysCurState	Y	Y		Hides or displays the cursor.
SysDeregisterObjectClass	Y			Deregisters an object class definition from the system.
SysDestroyObject	Y			Destroys an existing Workplace Shell object.
SysDriveInfo	Y	Y		Returns drive information.
SysDriveMap	Y	Y		Returns a string listing accessible drives (separated by blanks).
SysDropFuncs	Y	Y	Y	Drops all RexxUtil functions.
SysDropLibrary	Y	Y
SysDropRexxMacro	Y	Y	Y	Removes a routine from the REXX macrospace.
SysDumpVariables	Y	Y	Y	Dumps all variables in the current scope.
SysElapsedTime	Y			Returns a time in the format: sssssssss.uuuuuu.
SysFileDelete	Y	Y	Y	Deletes a file.
SysFileSearch	Y	Y	Y	Finds all file lines containing the target string.
SysFileSystemType	Y	Y		Returns the name of the file system used for a drive.
SysFileTree	Y	Y	Y*	Finds all files that match a file specification.
SysFork			Y	Returns the process id to the parent process.
SysFromUnicode		Y		Maps a UniCode character string to an ASCII character string.
SysGetCollate	Y	Y		Retrieves the country-specific collating table.
SysGetEA	Y			Retrieves a file's extended attribute and stores its value in variable.
SysGetErrortext		Y	Y**	Obtains a string describing the system error identified by the error number.
SysGetFileDateTime	Y	Y	Y	Returns the selected data and time attribute of a file.
SysGetKey	Y	Y	Y	Reads and returns the next key from the keyboard buffer.
SysGetMessage	Y	Y		Retrieves a message from an operating system message file.
SysGetMessageX			Y	Retrieves a message from a specific set of Unix catalog file.
SysGetpid			Y+		use SysQueryProcess instead
SysIni	Y	Y		Allows limited access to INI file variables.
SysLoadFuncs	Y	Y	Y	Loads all RexxUtil functions.
SysLoadLibrary	Y	Y
SysLoadRexxMacroSpace	Y	Y	Y	Loads functions from a saved macrospace file.
SysLinVer			Y++		use SysVersion instead
SysMapCase	Y	Y		Performs a national language uppercase mapping to a string.
SysMkDir	Y	Y	Y	Creates a specified directory quickly.
SysMoveObject	Y			Moves an existing Workplace Shell object to the specified destination folder.
SysNationalLanguageCompare	Y	Y		Compares two character strings using a country-specific collating table.
SysOpenEventSem	Y	Y	Y	Opens an event semaphore.
SysOpenMutexSem	Y	Y	Y	Opens an mutex semaphore.
SysOpenObject	Y			Opens a view of an existing Workplace Shell object.
SysOS2Ver	Y			Returns a string specifying the OS/2 operating system version information.	use SysVersion instead
SysPostEventSem	Y	Y	Y	Posts an event semaphore.
SysProcessType	Y	Y		Returns the type of process in which the REXX program is running.
SysPulseEventSem	Y	Y		Posts and immediately resets an event semaphore.
SysPutEA	Y			Writes a named extended attribute to a file.
SysQueryClassList	Y			Retrieves the complete list of registered object classes.
SysQueryEAList	Y			Retrieves the complete list of extended attribute names.
SysQueryExtLIBPATH	Y
SysQueryProcess	Y	Y	Y*	Retrieves information about the current process.
SysQueryProcessCodePage	Y	Y		Queries the current code page for the process.
SysQueryRexxMacro	Y	Y	Y	Queries the existence of a macrospace function.
SysQuerySwitchList	Y
SysRegisterObjectClass	Y			Registers a new object class definition.
SysReleaseMutexSem	Y	Y	Y	Releases a mutex semaphore.
SysReorderRexxMacro	Y	Y	Y	Reorders a routine loaded in the REXX macrospace.
SysRequestMutexSem	Y	Y	Y	Requests a mutex semaphore.
SysResetEventSem	Y	Y	Y	Resets an event semaphore.
SysRmDir	Y	Y	Y	Deletes a specified file directory quickly.
SysSaveObject	Y			Saves an existing Workplace Shell object.
SysSaveRexxMacroSpace	Y	Y	Y	Saves the REXX macrospace.
SysSearchPath	Y	Y	Y	Searches the specified file path for the specified file.
SysSetExtLIBPATH	Y
SysSetFileDateTime	Y	Y	Y	Modifies the "Last Modified" date and time of file.
SysSetFileHandle	Y			Sets the number of file handles available to the current process.
SysSetIcon	Y			Associates an icon file with a specified file.
SysSetObjectData	Y			Changes the settings of an existing object.
SysSetPriority	Y	Y		Changes the priority of the current process.
SysSetProcessCodePage	Y	Y		Changes the current code page for the process.
SysShutDownSystem	Y	Y		Shuts down the operating system.
SysSleep	Y	Y	Y	Pauses a REXX program for a specified time interval.
SysStemCopy	Y	Y	Y	Copies items from the source stem to the target stem.
SysStemDelete	Y	Y	Y	Deletes the specified item at the index startitem in the stem.
SysStemInsert	Y	Y	Y	Inserts a new item at position in the stem.
SysStemSort	Y	Y	Y	Sorts all or the specified items in the stem.
SysSwitchSession	Y	Y		Brings the named window to the foreground.
SysSystemDirectory		Y		Returns the Windows system directory.
SysTempFileName	Y	Y	Y	Returns a unique file or directory name for a file or directory that does not currently exist.
SysTextScreenRead	Y	Y		Reads characters from a specified screen location.
SysTextScreenSize	Y	Y		Returns the size of the screen.
SysToUnicode		Y		Maps a character string to a UniCode string.
SysUtilVersion	Y	Y	Y	Returns a version number that identifies the current level of the Rexx Utilities package.
SysVersion	Y	Y	Y	Returns a string to identify the operating system and version.
SysVolumeLabel	Y	Y		Returns the volume label for the specified drive.
SysWait			Y	Waits for all child processes to end.
SysWaitEventSem	Y	Y	Y	Waits on an event semaphore.
SysWaitForShell	Y			Wait for a specific initialization event of the Workplace Shell.
SysWaitNamedPipe	Y	Y		Performs a timed wait on a named pipe.
SysWildCard	Y	Y		Produces an edited file name using a source file name and a wild card editing pattern.
SysWinDecryptFile		Y		Decrypts a given file.
SysWinEncryptFile		Y		Encrypts a given file.
SysWinVer		Y		Returns a string specifying the Windows operating system version information.	use SysVersion instead