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CD ROM Paradise Collection 4 1995 Nov.iso
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0025_Get Video Char Direct.pas
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Pascal/Delphi Source File
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1993-08-23
|
2KB
|
36 lines
===========================================================================
BBS: Canada Remote Systems
Date: 08-18-93 (08:32) Number: 34760
From: WILLIAM SCHROEDER Refer#: NONE
To: CHRIS PORTMAN Recvd: NO
Subj: RE: DIRECT VIDEO WRITES Conf: (1221) F-PASCAL
---------------------------------------------------------------------------
-=> Quoting Chris Portman to All <=-
CP> Can anyone write me a procedure that will write a character on the
CP> screen without moving the cursor (ie - DirWrite (80, 25, '!');). I
CP> just need this to write to the space at 80x25 without scrolling the
CP> screen.
function GetChar(x, y: integer): char; (* $B000 for mono *)
var screen: array[1..25, 1..80] of word absolute $B800:0000;
begin
GetChar := char(screen[x][y] and $FF);
end;
function GetTextColor(x, y: integer): integer; (* $B000 for mono *)
var screen: array[1..25, 1..80] of word absolute $B800:0001;
begin
GetTextColor := integer(screen[x][y] and $FF);
end;
This is not the answer to your problem, but I'm sure it will help. All you
have to do (I *think*) is write back to the screen variable (BIOS). Keep in
mind that X and Y are in DOS format. For some reason, DOS's X-Axis is
vertical and Y-Axis is horizontal; CRT.GotoXY reverses that.
Sorry I couldn't help further...
... Only reasonable people agree with me.
--- GEcho 1.00
* Origin: Not Ready For Prime Time * Victoria, Texas (1:3802/221.0)