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- {@@@@@@@@@@@ copyright (C) 1984 by Neil J. Rubenking @@@@@@@@@@@@@@@@@@@@@@@@
- The purchaser of these procedures and functions may include them in COMPILED
- programs freely, but may not sell or give away the source text.
-
- The file GRFXTABL.LIB contains the definition of a variable
- called "table" that is exactly the "shape" of the ROM graphics
- table, and in the same place. Because it's ROM, we can't
- change it, but we can look at how the characters are mapped
- out. These are exactly the dot patterns used in text mode.
-
- }
-
- {$I windows.lib}
- {$I grfxtabl.lib}
- {$I getkeys.lib}
- const
- CharWin : corners = (60,5,67,13);
- TextWin : corners = (2,2,50,23);
- MainWin : corners = (1,1,80,25);
-
- var
- C, D : char;
-
- {@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@}
- begin
- DoFrame(TextWin,'═','║');
- DoWindow(TextWin);
- WriteLn('Press any key that generates a character with');
- WriteLn('an ASCII code < 127. This program looks up the');
- WriteLn('"picture" of that character in the Video ROM');
- WriteLn('and shows it onscreen. The characters produced');
- WriteLn('by holding down the <Alt> key and typing in a');
- WriteLn('number from 1 to 31 on the keypad are enter-');
- WriteLn('taining.');
- WriteLn;
- WriteLn('Keys that generate "Escape codes" (function');
- WriteLn('keys, arrow keys) will display the character');
- WriteLn('AFTER the Esc.');
- WriteLn;
- WriteLn('Press <SpaceBar> to begin, <Esc> to end.');
- repeat until keypressed;
- DoFrame(CharWin,'─','│');
- DoWindow(CharWin);
- repeat
- GetKeys(C,D);
- if C = #27 then
- ShowEntry(table[ord(D)])
- else
- ShowEntry(table[ord(C)]);
- until (C = #27) and (D = #0);
- DoWindow(MainWin);
- ClrScr;
- end.
-
-
-
-