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- {
- MICHAEL NICOLAI
-
- You want to clear the entire screen? Then just Write 00 in every Byte!
- You have to save the screen first, of course. :-)
-
- This Procedure saves the screen, clears it, waits For a keystroke and
- then restores the screen:
- }
-
- Uses
- Crt;
-
- Procedure ClearScreen;
- Const
- lines = 50; { number of lines }
- length = 160 * lines - 1;
- Var
- i : Word;
- screen : Array [0..length] of Byte;
- begin
- { save the screen }
- For i := 0 to length do
- screen[i] := mem[$B800 : i];
- { blank screen }
- For i := 0 to length do
- mem[$B800 : i] := 0;
- { wait For keystroke }
- While (NOT KeyPressed) do;
- { restore screen }
- For i := 0 to length do
- mem[$B800 : i] := screen[i];
- end;
-
- begin
- ClearScreen;
- end.