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crt.pp
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1998-09-21
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{
$Id: crt.pp,v 1.5 1998/09/14 20:21:53 carl Exp $
This file is part of the Free Pascal run time library.
Copyright (c) 1998 by Nils Sjoholm and Carl Eric Codere
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
**********************************************************************}
unit Crt;
{--------------------------------------------------------------------}
{ LEFT TO DO: }
{--------------------------------------------------------------------}
{ o Write special characters are not recognized }
{ o Write does not take care of window coordinates yet. }
{ o Read does not recognize the special editing characters }
{ o Read does not take care of window coordinates yet. }
{ o Readkey extended scancode is not correct yet }
{ o Color mapping only works for 4 colours }
{ o ClrScr, DeleteLine, InsLine do not work with window coordinates }
{--------------------------------------------------------------------}
Interface
Const
{ Controlling consts }
Flushing=false; {if true then don't buffer output}
ScreenWidth = 80;
ScreenHeight = 25;
{ CRT modes }
BW40 = 0; { 40x25 B/W on Color Adapter }
CO40 = 1; { 40x25 Color on Color Adapter }
BW80 = 2; { 80x25 B/W on Color Adapter }
CO80 = 3; { 80x25 Color on Color Adapter }
Mono = 7; { 80x25 on Monochrome Adapter }
Font8x8 = 256; { Add-in for ROM font }
{ Mode constants for 3.0 compatibility }
C40 = CO40;
C80 = CO80;
{
When using this color constants on the Amiga
you can bet that they don't work as expected.
You never know what color the user has on
his Amiga. Perhaps we should do a check of
the number of bitplanes (for number of colors)
The normal 4 first pens for an Amiga are
0 LightGrey
1 Black
2 White
3 Blue
}
{ Foreground and background color constants }
Black = 1; { normal pen for amiga }
Blue = 3; { windowborder color }
Green = 15;
Cyan = 7;
Red = 4;
Magenta = 5;
Brown = 6;
LightGray = 0; { canvas color }
{ Foreground color constants }
DarkGray = 8;
LightBlue = 9;
LightGreen = 10;
LightCyan = 11;
LightRed = 12;
LightMagenta = 13;
Yellow = 14;
White = 2; { third color on amiga }
{ Add-in for blinking }
Blink = 128;
{Other Defaults}
LastMode : Word = 3;
WindMin : Word = $0;
WindMax : Word = $184f;
{ These don't change anything if they are modified }
CheckSnow : Boolean = FALSE;
DirectVideo: Boolean = FALSE;
var
TextAttr : BYTE;
{ CheckBreak have to make this one to a function for Amiga }
CheckEOF : Boolean;
Procedure AssignCrt(Var F: Text);
Function KeyPressed: Boolean;
Function ReadKey: Char;
Procedure TextMode(Mode: Integer);
Procedure Window(X1, Y1, X2, Y2: BYTE);
Procedure GoToXy(X: byte; Y: byte);
Function WhereX: Byte;
Function WhereY: Byte;
Procedure ClrScr;
Procedure ClrEol;
Procedure InsLine;
Procedure DelLine;
Procedure TextColor(Color: Byte);
Procedure TextBackground(Color: Byte);
Procedure LowVideo;
Procedure HighVideo;
Procedure NormVideo;
Procedure Delay(DTime: Word);
Procedure Sound(Hz: Word);
Procedure NoSound;
{ Extra functions }
Procedure CursorOn;
Procedure CursorOff;
Function CheckBreak: Boolean;
Implementation
{
The definitions of TextRec and FileRec are in separate files.
}
{$i textrec.inc}
{$i filerec.inc}
var
maxcols,maxrows : longint;
CONST
{ This is used to make sure that readkey returns immediately }
{ if keypressed was used beforehand. }
KeyPress : char = #0;
_LVODisplayBeep = -96;
Type
pInfoData = ^tInfoData;
tInfoData = packed record
id_NumSoftErrors : Longint; { number of soft errors on disk }
id_UnitNumber : Longint; { Which unit disk is (was) mounted on }
id_DiskState : Longint; { See defines below }
id_NumBlocks : Longint; { Number of blocks on disk }
id_NumBlocksUsed : Longint; { Number of block in use }
id_BytesPerBlock : Longint;
id_DiskType : Longint; { Disk Type code }
id_VolumeNode : Longint; { BCPL pointer to volume node }
id_InUse : Longint; { Flag, zero if not in use }
end;
{ * List Node Structure. Each member in a list starts with a Node * }
pNode = ^tNode;
tNode = packed Record
ln_Succ, { * Pointer to next (successor) * }
ln_Pred : pNode; { * Pointer to previous (predecessor) * }
ln_Type : Byte;
ln_Pri : Shortint; { * Priority, for sorting * }
ln_Name : PChar; { * ID string, null terminated * }
End; { * Note: Integer aligned * }
{ normal, full featured list }
pList = ^tList;
tList = packed record
lh_Head : pNode;
lh_Tail : pNode;
lh_TailPred : pNode;
lh_Type : Byte;
l_pad : Byte;
end;
pMsgPort = ^tMsgPort;
tMsgPort = packed record
mp_Node : tNode;
mp_Flags : Byte;
mp_SigBit : Byte; { signal bit number }
mp_SigTask : Pointer; { task to be signalled (TaskPtr) }
mp_MsgList : tList; { message linked list }
end;
pMessage = ^tMessage;
tMessage = packed record
mn_Node : tNode;
mn_ReplyPort : pMsgPort; { message reply port }
mn_Length : Word; { message len in bytes }
end;
pIOStdReq = ^tIOStdReq;
tIOStdReq = packed record
io_Message : tMessage;
io_Device : Pointer; { device node pointer }
io_Unit : Pointer; { unit (driver private)}
io_Command : Word; { device command }
io_Flags : Byte;
io_Error : Shortint; { error or warning num }
io_Actual : Longint; { actual number of bytes transferred }
io_Length : Longint; { requested number bytes transferred}
io_Data : Pointer; { points to data area }
io_Offset : Longint; { offset for block structured devices }
end;
pIntuiMessage = ^tIntuiMessage;
tIntuiMessage = packed record
ExecMessage : tMessage;
IClass : Longint;
Code : Word;
Qualifier : Word;
IAddress : Pointer;
MouseX,
MouseY : Word;
Seconds,
Micros : Longint;
IDCMPWindow : Pointer;
SpecialLink : pIntuiMessage;
end;
pWindow = ^tWindow;
tWindow = packed record
NextWindow : pWindow; { for the linked list in a screen }
LeftEdge,
TopEdge : Integer; { screen dimensions of window }
Width,
Height : Integer; { screen dimensions of window }
MouseY,
MouseX : Integer; { relative to upper-left of window }
MinWidth,
MinHeight : Integer; { minimum sizes }
MaxWidth,
MaxHeight : Word; { maximum sizes }
Flags : Longint; { see below for defines }
MenuStrip : Pointer; { the strip of Menu headers }
Title : PChar; { the title text for this window }
FirstRequest : Pointer; { all active Requesters }
DMRequest : Pointer; { double-click Requester }
ReqCount : Integer; { count of reqs blocking Window }
WScreen : Pointer; { this Window's Screen }
RPort : Pointer; { this Window's very own RastPort }
BorderLeft,
BorderTop,
BorderRight,
BorderBottom : Shortint;
BorderRPort : Pointer;
FirstGadget : Pointer;
Parent,
Descendant : pWindow;
Pointer_ : Pointer; { sprite data }
PtrHeight : Shortint; { sprite height (not including sprite padding) }
PtrWidth : Shortint; { sprite width (must be less than or equal to 16) }
XOffset,
YOffset : Shortint; { sprite offsets }
IDCMPFlags : Longint; { User-selected flags }
UserPort,
WindowPort : pMsgPort;
MessageKey : pIntuiMessage;
DetailPen,
BlockPen : Byte; { for bar/border/gadget rendering }
CheckMark : Pointer;
ScreenTitle : PChar; { if non-null, Screen title when Window is active }
GZZMouseX : Integer;
GZZMouseY : Integer;
GZZWidth : Integer;
GZZHeight : Word;
ExtData : Pointer;
UserData : Pointer; { general-purpose pointer to User data extension }
WLayer : Pointer;
IFont : Pointer;
MoreFlags : Longint;
end;
const
M_LNM = 20; { linefeed newline mode }
PMB_ASM = M_LNM + 1; { internal storage bit for AS flag }
PMB_AWM = PMB_ASM + 1; { internal storage bit for AW flag }
MAXTABS = 80;
IECLASS_MAX = $15;
type
pKeyMap = ^tKeyMap;
tKeyMap = packed record
km_LoKeyMapTypes : Pointer;
km_LoKeyMap : Pointer;
km_LoCapsable : Pointer;
km_LoRepeatable : Pointer;
km_HiKeyMapTypes : Pointer;
km_HiKeyMap : Pointer;
km_HiCapsable : Pointer;
km_HiRepeatable : Pointer;
end;
pConUnit = ^tConUnit;
tConUnit = packed record
cu_MP : tMsgPort;
{ ---- read only variables }
cu_Window : Pointer; { (WindowPtr) intuition window bound to this unit }
cu_XCP : Integer; { character position }
cu_YCP : Integer;
cu_XMax : Integer; { max character position }
cu_YMax : Integer;
cu_XRSize : Integer; { character raster size }
cu_YRSize : Integer;
cu_XROrigin : Integer; { raster origin }
cu_YROrigin : Integer;
cu_XRExtant : Integer; { raster maxima }
cu_YRExtant : Integer;
cu_XMinShrink : Integer; { smallest area intact from resize process }
cu_YMinShrink : Integer;
cu_XCCP : Integer; { cursor position }
cu_YCCP : Integer;
{ ---- read/write variables (writes must must be protected) }
{ ---- storage for AskKeyMap and SetKeyMap }
cu_KeyMapStruct : tKeyMap;
{ ---- tab stops }
cu_TabStops : Array [0..MAXTABS-1] of Word;
{ 0 at start, -1 at end of list }
{ ---- console rastport attributes }
cu_Mask : Shortint;
cu_FgPen : Shortint;
cu_BgPen : Shortint;
cu_AOLPen : Shortint;
cu_DrawMode : Shortint;
cu_AreaPtSz : Shortint;
cu_AreaPtrn : Pointer; { cursor area pattern }
cu_Minterms : Array [0..7] of Byte; { console minterms }
cu_Font : Pointer; { (TextFontPtr) }
cu_AlgoStyle : Byte;
cu_TxFlags : Byte;
cu_TxHeight : Word;
cu_TxWidth : Word;
cu_TxBaseline : Word;
cu_TxSpacing : Word;
{ ---- console MODES and RAW EVENTS switches }
cu_Modes : Array [0..(PMB_AWM+7) div 8 - 1] of Byte;
{ one bit per mode }
cu_RawEvents : Array [0..(IECLASS_MAX+7) div 8 - 1] of Byte;
end;
const
CD_CURRX = 1;
CD_CURRY = 2;
CD_MAXX = 3;
CD_MAXY = 4;
CSI = chr($9b);
SIGBREAKF_CTRL_C = 4096;
function AllocVec( size, reqm : Longint ): Pointer;
begin
asm
MOVE.L A6,-(A7)
MOVE.L size,d0
MOVE.L reqm,d1
MOVE.L _ExecBase, A6
JSR -684(A6)
MOVE.L (A7)+,A6
MOVE.L d0,@RESULT
end;
end;
function DoPkt(ID : pMsgPort;
Action, Param1, Param2,
Param3, Param4, Param5 : Longint) : Longint;
begin
asm
MOVEM.L d2/d3/d4/d5/d6/d7/a6,-(A7)
MOVE.L ID,d1
MOVE.L Action,d2
MOVE.L Param1,d3
MOVE.L Param2,d4
MOVE.L Param3,d5
MOVE.L Param4,d6
MOVE.L Param5,d7
MOVE.L _DOSBase,A6
JSR -240(A6)
MOVEM.L (A7)+,d2/d3/d4/d5/d6/d7/a6
MOVE.L d0,@RESULT
end;
end;
procedure FreeVec( memory : Pointer );
begin
asm
MOVE.L A6,-(A7)
MOVE.L memory,a1
MOVE.L _ExecBase,A6
JSR -690(A6)
MOVE.L (A7)+,A6
end;
end;
function GetConsoleTask : pMsgPort;
begin
asm
MOVE.L A6,-(A7)
MOVE.L _DOSBase,A6
JSR -510(A6)
MOVE.L (A7)+,A6
MOVE.L d0,@RESULT
end;
end;
function GetMsg(port : pMsgPort): pMessage;
begin
asm
MOVE.L A6,-(A7)
MOVE.L port,a0
MOVE.L _ExecBase,A6
JSR -372(A6)
MOVE.L (A7)+,A6
MOVE.L d0,@RESULT
end;
end;
function ModifyIDCMP(window : pWindow;
IDCMPFlags : Longint) : Boolean;
begin
asm
MOVE.L A6,-(A7)
MOVE.L window,a0
MOVE.L IDCMPFlags,d0
MOVE.L _IntuitionBase,A6
JSR -150(A6)
MOVE.L (A7)+,A6
TST.L d0
bne @success
bra @end
@success:
move.b #1,d0
@end:
move.b d0,@RESULT
end;
end;
procedure ReplyMsg(mess : pMessage);
begin
asm
MOVE.L A6,-(A7)
MOVE.L mess,a1
MOVE.L _ExecBase,A6
JSR -378(A6)
MOVE.L (A7)+,A6
end;
end;
function WaitPort(port : pMsgPort): pMessage;
begin
asm
MOVE.L A6,-(A7)
MOVE.L port,a0
MOVE.L _ExecBase,A6
JSR -384(A6)
MOVE.L (A7)+,A6
MOVE.L d0,@RESULT
end;
end;
procedure Delay_(ticks : Longint);
begin
asm
MOVE.L A6,-(A7)
MOVE.L ticks,d1
MOVE.L _DOSBase,A6
JSR -198(A6)
MOVE.L (A7)+,A6
end;
end;
function SetSignal(newSignals, signalMask : Longint) : Longint;
begin
asm
MOVE.L A6,-(A7)
MOVE.L newSignals,d0
MOVE.L signalMask,d1
MOVE.L _ExecBase,A6
JSR -306(A6)
MOVE.L (A7)+,A6
MOVE.L d0,@RESULT
end;
end;
function OpenInfo : pInfoData;
var
port : pMsgPort;
info : pInfoData;
bptr, d4, d5, d6, d7 : Longint;
begin
info := pInfoData(AllocVec(SizeOf(tInfoData), 1));
if info <> nil then begin
port := GetConsoleTask;
bptr := Longint(info) shr 2;
if port <> nil then begin
if DoPkt(port, $19, bptr, d4, d5, d6, d7) <> 0 then info := pInfoData(bptr shl 2)
else port := nil;
end;
if port = nil then begin
FreeVec(info);
info := nil;
end;
end;
OpenInfo := info;
end;
procedure CloseInfo(var info : pInfoData);
begin
if info <> nil then begin
FreeVec(info);
info := nil;
end;
end;
function ConData(modus : byte) : integer;
var
info : pInfoData;
theunit : pConUnit;
pos : Longint;
begin
pos := 1;
info := OpenInfo;
if info <> nil then begin
theunit := pConUnit((pIoStdReq(info^.id_InUse))^.io_Unit);
case modus of
CD_CURRX : pos := theunit^.cu_XCP;
CD_CURRY : pos := theunit^.cu_YCP;
CD_MAXX : pos := theunit^.cu_XMax;
CD_MAXY : pos := theunit^.cu_YMax;
end;
CloseInfo(info);
end;
ConData := pos + 1;
end;
function WhereX : Byte;
begin
WhereX := Byte(ConData(CD_CURRX))-lo(windmin);
end;
function realx: byte;
begin
RealX := Byte(ConData(CD_CURRX));
end;
function realy: byte;
begin
RealY := Byte(ConData(CD_CURRY));
end;
function WhereY : Byte;
begin
WhereY := Byte(ConData(CD_CURRY))-hi(windmin);
end;
function screencols : integer;
begin
screencols := ConData(CD_MAXX);
end;
function screenrows : integer;
begin
screenrows := ConData(CD_MAXY);
end;
procedure Realgotoxy(x,y : integer);
begin
Write(CSI, y, ';', x, 'H');
end;
procedure gotoxy(x,y : byte);
begin
if (x<1) then
x:=1;
if (y<1) then
y:=1;
if y+hi(windmin)-2>=hi(windmax) then
y:=hi(windmax)-hi(windmin)+1;
if x+lo(windmin)-2>=lo(windmax) then
x:=lo(windmax)-lo(windmin)+1;
Write(CSI, y+hi(windmin), ';', x+lo(windmin), 'H');
end;
procedure CursorOff;
begin
Write(CSI,'0 p');
end;
procedure CursorOn;
begin
Write(CSI,'1 p');
end;
procedure ClrScr;
begin
Write(Chr($0c));
end;
function ReadKey : char;
const
IDCMP_VANILLAKEY = $00200000;
IDCMP_RAWKEY = $00000400;
var
info : pInfoData;
win : pWindow;
imsg : pIntuiMessage;
msg : pMessage;
key : char;
idcmp, vanil : Longint;
begin
key := #0;
if KeyPress <> #0 then
Begin
ReadKey:=KeyPress;
KeyPress:=#0;
exit;
end;
info := OpenInfo;
if info <> nil then begin
win := pWindow(pConUnit((pIoStdReq(info^.id_InUse))^.io_Unit)^.cu_Window);
idcmp := win^.IDCMPFlags;
vanil := IDCMP_VANILLAKEY or IDCMP_RAWKEY;
ModifyIDCMP(win, (idcmp or vanil));
repeat
msg := WaitPort(win^.UserPort);
imsg := pIntuiMessage(GetMsg(win^.UserPort));
if (imsg^.IClass = IDCMP_VANILLAKEY) then
key := char(imsg^.Code)
else
if (imsg^.IClass = IDCMP_RAWKEY) then
key := char(imsg^.Code);
ReplyMsg(pMessage(imsg));
until key <> #0;
repeat
msg := GetMsg(win^.UserPort);
if msg <> nil then ReplyMsg(msg);
until msg = nil;
ModifyIDCMP(win, idcmp);
CloseInfo(info);
end;
ReadKey := key;
end;
function KeyPressed : Boolean;
const
IDCMP_VANILLAKEY = $00200000;
IDCMP_RAWKEY = $00000400;
var
info : pInfoData;
win : pWindow;
imsg : pIntuiMessage;
msg : pMessage;
idcmp, vanil : Longint;
ispressed : Boolean;
begin
KeyPress := #0;
ispressed := False;
info := OpenInfo;
if info <> nil then begin
win := pWindow(pConUnit((pIoStdReq(info^.id_InUse))^.io_Unit)^.cu_Window);
idcmp := win^.IDCMPFlags;
vanil := IDCMP_VANILLAKEY or IDCMP_RAWKEY;
ModifyIDCMP(win, (idcmp or vanil));
msg := WaitPort(win^.UserPort);
imsg := pIntuiMessage(GetMsg(win^.UserPort));
if (imsg^.IClass = IDCMP_VANILLAKEY) or (imsg^.IClass = IDCMP_RAWKEY) then
Begin
ispressed := true;
KeyPress := char(imsg^.Code)
end;
ReplyMsg(pMessage(imsg));
repeat
msg := GetMsg(win^.UserPort);
if msg <> nil then ReplyMsg(msg);
until msg = nil;
ModifyIDCMP(win, idcmp);
CloseInfo(info);
end;
KeyPressed := ispressed;
end;
procedure TextColor(color : byte);
begin
TextAttr := (TextAttr and $70) or color;
Write(CSI, '3', color, 'm');
end;
procedure TextBackground(color : byte);
begin
Textattr:=(textattr and $8f) or ((color and $7) shl 4);
Write(CSI, '4', color, 'm');
end;
procedure Window(X1,Y1,X2,Y2: Byte);
begin
if (x1<1) or (x2>screencols) or (y2>screenrows) or
(x1>x2) or (y1>y2) then
exit;
windmin:=(x1-1) or ((y1-1) shl 8);
windmax:=(x2-1) or ((y2-1) shl 8);
gotoxy(1,1);
end;
procedure DelLine;
begin
Write(CSI,'X');
end;
procedure ClrEol;
begin
Write(CSI,'K');
end;
procedure InsLine;
begin
Write(CSI,'1 L');
end;
procedure cursorbig;
begin
end;
procedure lowvideo;
begin
end;
procedure highvideo;
begin
end;
procedure nosound;
begin
end;
procedure sound(hz : word);
begin
end;
procedure delay(DTime : Word);
var
dummy : Longint;
begin
dummy := trunc((real(DTime) / 1000.0) * 50.0);
Delay_(dummy);
end;
function CheckBreak : boolean;
begin
if (SetSignal(0, 0) and SIGBREAKF_CTRL_C) = SIGBREAKF_CTRL_C then
CheckBreak := true
else
CheckBreak := false;
end;
procedure textmode(mode : integer);
begin
lastmode:=mode;
mode:=mode and $ff;
windmin:=0;
windmax:=(screencols-1) or ((screenrows-1) shl 8);
maxcols:=screencols;
maxrows:=screenrows;
end;
procedure normvideo;
begin
end;
function GetTextBackground : byte;
var
info : pInfoData;
pen : byte;
begin
pen := 1;
info := OpenInfo;
if info <> nil then begin
pen := pConUnit((pIoStdReq(info^.id_InUse))^.io_Unit)^.cu_BgPen;
CloseInfo(info);
end;
GetTextBackground := pen;
end;
function GetTextColor : byte;
var
info : pInfoData;
pen : byte;
begin
pen := 1;
info := OpenInfo;
if info <> nil then begin
pen := pConUnit((pIoStdReq(info^.id_InUse))^.io_Unit)^.cu_FgPen;
CloseInfo(info);
end;
GetTextColor := pen;
end;
{*****************************************************************************
Read and Write routines
*****************************************************************************}
{ Problem here: Currently all these routines are not implemented because of how }
{ the console device works. Because w low level write is required to change the }
{ position of the cursor, and since the CrtWrite is assigned as the standard }
{ write routine, a recursive call will occur }
{ How to fix this: }
{ At startup make a copy of the Output handle, and then use this copy to make }
{ low level positioning calls. This does not seem to work yet. }
Function CrtWrite(var f : textrec):integer;
var
i,col,row : longint;
c : char;
buf: array[0..1] of char;
begin
col:=realx;
row:=realy;
inc(row);
inc(col);
for i:=0 to f.bufpos-1 do
begin
c:=f.buffer[i];
case ord(c) of
10 : begin
inc(row);
end;
13 : begin
col:=lo(windmin)+1;
end;
8 : if col>lo(windmin)+1 then
begin
dec(col);
end;
7 : begin
{ beep }
asm
move.l a6,d6 { save base pointer }
move.l _IntuitionBase,a6 { set library base }
sub.l a0,a0
jsr _LVODisplayBeep(a6)
move.l d6,a6 { restore base pointer }
end;
end;
else
begin
buf[0]:=c;
realgotoxy(row,col);
do_write(f.handle,longint(@buf[0]),1);
inc(col);
end;
end;
if col>lo(windmax)+1 then
begin
col:=lo(windmin)+1;
inc(row);
end;
while row>hi(windmax)+1 do
begin
delline;
dec(row);
end;
end;
f.bufpos:=0;
realgotoxy(row-1,col-1);
CrtWrite:=0;
end;
Function CrtClose(Var F: TextRec): Integer;
Begin
F.Mode:=fmClosed;
CrtClose:=0;
End;
Function CrtOpen(Var F: TextRec): Integer;
Begin
If F.Mode = fmOutput Then
CrtOpen:=0
Else
CrtOpen:=5;
End;
Function CrtRead(Var F: TextRec): Integer;
Begin
f.bufend:=do_read(f.handle,longint(f.bufptr),f.bufsize);
f.bufpos:=0;
CrtRead:=0;
End;
Function CrtInOut(Var F: TextRec): Integer;
Begin
Case F.Mode of
fmInput: CrtInOut:=CrtRead(F);
fmOutput: CrtInOut:=CrtWrite(F);
End;
End;
procedure assigncrt(var f : text);
begin
{ TextRec(F).Mode:=fmClosed;
TextRec(F).BufSize:=SizeOf(TextBuf);
TextRec(F).BufPtr:=@TextRec(F).Buffer;
TextRec(F).BufPos:=0;
TextRec(F).OpenFunc:=@CrtOpen;
TextRec(F).InOutFunc:=@CrtInOut;
TextRec(F).FlushFunc:=@CrtInOut;
TextRec(F).CloseFunc:=@CrtClose;
TextRec(F).Name[0]:='.';
TextRec(F).Name[1]:=#0;}
end;
var
old_exit : pointer;
procedure crt_exit;
begin
{ Restore default colors }
write(CSI,'0m');
exitproc:=old_exit;
end;
Begin
old_exit:=exitproc;
exitproc:=@crt_exit;
{ load system variables to temporary variables to save time }
maxcols:=screencols;
maxrows:=screenrows;
{ Set the initial text attributes }
{ Text background }
Textattr:=(textattr and $8f) or ((GetTextBackGround and $7) shl 4);
{ Text foreground }
TextAttr := (TextAttr and $70) or GetTextColor;
{ set output window }
windmax:=(maxcols-1) or (( maxrows-1) shl 8);
{ Get a copy of the standard }
{ output handle, and when using }
{ direct console calls, use this }
{ handle instead. }
{ assigncrt(Output);
TextRec(Output).mode:=fmOutput;}
end.