home *** CD-ROM | disk | FTP | other *** search
- ===========================================================================
- 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)