home *** CD-ROM | disk | FTP | other *** search
-
- {*******************************************************}
- { }
- { Turbo Pascal Version 6.0 }
- { CRT Interface Unit }
- { }
- { Copyright (C) 1987, 1990 Borland International }
- { }
- {*******************************************************}
-
- unit Crt;
-
- {$D-,I-,S-}
-
- interface
-
- const
-
- { 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;
-
- { Foreground and background color constants }
-
- Black = 0;
- Blue = 1;
- Green = 2;
- Cyan = 3;
- Red = 4;
- Magenta = 5;
- Brown = 6;
- LightGray = 7;
-
- { Foreground color constants }
-
- DarkGray = 8;
- LightBlue = 9;
- LightGreen = 10;
- LightCyan = 11;
- LightRed = 12;
- LightMagenta = 13;
- Yellow = 14;
- White = 15;
-
- { Add-in for blinking }
-
- Blink = 128;
-
- var
-
- { Interface variables }
-
- CheckBreak: Boolean; { Enable Ctrl-Break }
- CheckEOF: Boolean; { Enable Ctrl-Z }
- DirectVideo: Boolean; { Enable direct video addressing }
- CheckSnow: Boolean; { Enable snow filtering }
- LastMode: Word; { Current text mode }
- TextAttr: Byte; { Current text attribute }
- WindMin: Word; { Window upper left coordinates }
- WindMax: Word; { Window lower right coordinates }
-
- { Interface procedures }
-
- 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,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(MS: Word);
- procedure Sound(Hz: Word);
- procedure NoSound;
-