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CD ROM Paradise Collection 4 1995 Nov.iso
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0098_Screen Dump To File.pas
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Pascal/Delphi Source File
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1994-05-26
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1KB
|
45 lines
{
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.