[comp.lang.pascal] Turbo Pascal 4.0 and 5.0 units update tspas16.arc

ts@uwasa.fi (Timo Salmi LASK) (11/28/89)

Tue 28-Nov-89: Some time ago there was a lively discussion in the
InterNet news group comp.lang.pascal how to redirect all write and
writeln statements to the printer without having to change the
statements.  I now have a solution to that problem for Turbo Pascal
4.0 and 5.0.  The procedures USEPRN and USECON are part of update
/pc/ts/tspas16.arc of my Turbo Pascal 5.0 and 4.0 units collection. 
The new procedures/functions also include WEEKNRFN function in the
TSUNTE unit.  It gives the weeknumber for a given date.  REVCOLOR in
TSUNTC reverses (toggles) text colors.  And there are many other new
routines making up a new unit TSUNTG.  Available by anonymous ftp as
usual. 

...................................................................
Prof. Timo Salmi                                (Site 128.214.12.3)
School of Business Studies, University of Vaasa, SF-65101, Finland
Internet: ts@chyde.uwasa.fi Funet: vakk::salmi Bitnet: salmi@finfun

TSPAS16.ARC     Turbo Pascal 5.0 units, T.Salmi 
===========
Functions are indicated by the ending FN, the procedures by the lack of it.
TSUNTA:
  PANMR    Scroll screen right
  PANML    Scroll screen left
  WIDTHFN  Current width of text screen
  ATTRIBFN Color attribute for direct write to video memory
  VIDXY    Direct write to the screen video memory
  VDCHXY   Direct read from the screen video memory
  VDAEXYFN Direct read of a screen video memory color attribute
TSUNTB:
  TIMERFN  Time elapsed since midnight
  POWERFN  Conventional raising of a positive number to a power
  POWERGFN Generalized raising of any real to a power
  POWERLFN Raise longint to a non-negative integer power
  TWOTOFN  Two to a power, fast
  R16TOFN  Sixteen to a power, fast
  BITONFN  Status of a bit in a word
  CONVBFN  Convert from a number of any base to any other base
  BINDECFN Convert binary to decimal, fast
  DECBINFN Convert decimal to binary, fast (outdated by BINFN)
  BINFN    Convert decimal to binary, very fast
  LBINFN   Convert longint to binary, fast
  HEXDECFN Convert hexadecimal to decimal, fast
  DECHEXFN Convert decimal to hexadecimal, fast (outdated by HEXFN)
  HEXFN    Convert decimal to hexadecimal, very fast
  LHEXFN   Convert longint to hexadecimal, fast
TSUNTC:
  PLAYNOTE Play a note
  PRTONLFN Get the online status of a printer
  DSKCNTFN Get the number of disk devices (MsDos 3+ only)
  REVCOLOR Reverse text colors (a toggle)
TSUNTD:
  TRIMRGFN Trim a string right
  TRIMLFFN Trim a string left
  LEADFN   Lead a string with a multiple character (i.e. pad left)
  TRAILFN  Trail a string with a multiple character (i.e. pad right)
  DOSDELAY Delay without using the Crt unit
  PARSE    Extract all substrings from a string
  STRCNTFN Number of substrings in a string (resembles ParamCount)
  SPARTFN  Returns a specified substring (resembles ParamStr)
TSUNTE:
  CURSOFF  Turn off cursor (keeps other cursor attributes)
  CURSON   Turn cursor back on as it was
  CURSOR   Change cursor size
  BORDER   Change border color (CGA, VGA)
  CLB      Clear the keyboard buffer
  MONOFN   Is it a monochrome
  CAPSONFN CapsLock status
  NUMLONFN NumLock status
  FEXISTFN File existence status, handles ReadOnly files correctly
  FSIZEFN  File size
  CMDLNFN  Returns the entire command line
  WKDAYFN  Returns modern weekday
  WEEKNRFN Returns the week number for a given date
TSUNTF:
  EDRDLN   Readln with line-editing potential
  EDREADLN Readln with line-editing, recall, and insert toggle
TSUNTG:
  DRIVESFN Number of diskette drives on the system
  FDRIVEFN The name of the first diskette drive on the system
  INDRIVFN Is a media present in the given drive
  GOATXY   As the ordinary GoToXY but no Crt unit required
  REVAREA  Reverse the colors of an area
  USEPRN   Redirect write and writeln to the printer
  USECON   Restore write and writeln direction to the screen