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- {
- DUMPSCR.PAS
- Demo to dump a 25 line screen to disk and then restore it
- By Martin Richardson
- (This code is Public Domain... Enjoy!)
- }
- USES CRT;
-
- TYPE
- ScreenArray = ARRAY[1..25 * 80] OF WORD;
- ScreenPtr = ^ScreenArray;
-
- VAR
- _Screen: ScreenPtr;
- fHandle: FILE;
- ScreenRows: BYTE;
-
- BEGIN
- IF (LastMode = Mono) THEN
- _Screen := PTR( $B000, 0 )
- ELSE
- _Screen := PTR( $B800, 0 );
-
- ASSIGN( fHandle, 'DUMP.SCR' );
-
- { First we save the screen to the file DUMP.SCR }
- REWRITE( fHandle, 1 );
- BLOCKWRITE( fHandle, _Screen^, SIZEOF( _Screen^ ) );
- CLOSE( fHandle );
-
- { Now a little pause as we catch our breath }
- CLRSCR;
- WRITELN( 'Press any key...' );
- WHILE READKEY = #0 DO;
-
- { And finally we restore the screen from the file DUMP.SCR }
- RESET( fHandle, 1 );
- BLOCKREAD( fHandle, _Screen^, SIZEOF( _Screen^ ) );
- CLOSE( fHandle );
-
- { Another pause to view our handiwork }
- WHILE READKEY = #0 DO;
- END.
-