Home » Archimedes archive » Acorn Computing » 1995 01 subscription disc.adf » 9501s » PD/!BLACKHOLE/!HELP

PD/!BLACKHOLE/!HELP

This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.

Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.

Tape/disk: Home » Archimedes archive » Acorn Computing » 1995 01 subscription disc.adf » 9501s
Filename: PD/!BLACKHOLE/!HELP
Read OK:
File size: 0432 bytes
Load address: 0000
Exec address: 0000
File contents
!BlackHole (c) 1992 Linton Dawe.

This simple application opens a filer window for
the system device 'null:'.  The purpose of this is
to provide a quick way of destroying unwanted data
without the need for a special (memory consuming)
access/delete application.   To delete a file,
directory or application, simply hold down Shift
and drag the filer icon into the 'null:' window.
This moves the file from disc and into 'null:'
which swallows up all input.  As it uses a feature
which is built in to RISC OS, this application
does not consume any task manager memory, however
you should be careful as it does not ask you for
confimation unless you have 'Confirm' switched on
on your filer menu.

This application is Public Domain.  It may be
freely copied provided that it is not sold for
profit and is not modified in any way.  No single
file or part of file should be copied without the
rest of the application from which it came.

If you would like to contact me for any reason,
my address is:

Linton Dawe,
2 Crockers Wood Cottages,
Coldharbour,
Dorking,
Surrey,
RH5 6HE.
00000000  21 42 6c 61 63 6b 48 6f  6c 65 20 28 63 29 20 31  |!BlackHole (c) 1|
00000010  39 39 32 20 4c 69 6e 74  6f 6e 20 44 61 77 65 2e  |992 Linton Dawe.|
00000020  0a 0a 54 68 69 73 20 73  69 6d 70 6c 65 20 61 70  |..This simple ap|
00000030  70 6c 69 63 61 74 69 6f  6e 20 6f 70 65 6e 73 20  |plication opens |
00000040  61 20 66 69 6c 65 72 20  77 69 6e 64 6f 77 20 66  |a filer window f|
00000050  6f 72 0a 74 68 65 20 73  79 73 74 65 6d 20 64 65  |or.the system de|
00000060  76 69 63 65 20 27 6e 75  6c 6c 3a 27 2e 20 20 54  |vice 'null:'.  T|
00000070  68 65 20 70 75 72 70 6f  73 65 20 6f 66 20 74 68  |he purpose of th|
00000080  69 73 20 69 73 0a 74 6f  20 70 72 6f 76 69 64 65  |is is.to provide|
00000090  20 61 20 71 75 69 63 6b  20 77 61 79 20 6f 66 20  | a quick way of |
000000a0  64 65 73 74 72 6f 79 69  6e 67 20 75 6e 77 61 6e  |destroying unwan|
000000b0  74 65 64 20 64 61 74 61  0a 77 69 74 68 6f 75 74  |ted data.without|
000000c0  20 74 68 65 20 6e 65 65  64 20 66 6f 72 20 61 20  | the need for a |
000000d0  73 70 65 63 69 61 6c 20  28 6d 65 6d 6f 72 79 20  |special (memory |
000000e0  63 6f 6e 73 75 6d 69 6e  67 29 0a 61 63 63 65 73  |consuming).acces|
000000f0  73 2f 64 65 6c 65 74 65  20 61 70 70 6c 69 63 61  |s/delete applica|
00000100  74 69 6f 6e 2e 20 20 20  54 6f 20 64 65 6c 65 74  |tion.   To delet|
00000110  65 20 61 20 66 69 6c 65  2c 0a 64 69 72 65 63 74  |e a file,.direct|
00000120  6f 72 79 20 6f 72 20 61  70 70 6c 69 63 61 74 69  |ory or applicati|
00000130  6f 6e 2c 20 73 69 6d 70  6c 79 20 68 6f 6c 64 20  |on, simply hold |
00000140  64 6f 77 6e 20 53 68 69  66 74 0a 61 6e 64 20 64  |down Shift.and d|
00000150  72 61 67 20 74 68 65 20  66 69 6c 65 72 20 69 63  |rag the filer ic|
00000160  6f 6e 20 69 6e 74 6f 20  74 68 65 20 27 6e 75 6c  |on into the 'nul|
00000170  6c 3a 27 20 77 69 6e 64  6f 77 2e 0a 54 68 69 73  |l:' window..This|
00000180  20 6d 6f 76 65 73 20 74  68 65 20 66 69 6c 65 20  | moves the file |
00000190  66 72 6f 6d 20 64 69 73  63 20 61 6e 64 20 69 6e  |from disc and in|
000001a0  74 6f 20 27 6e 75 6c 6c  3a 27 0a 77 68 69 63 68  |to 'null:'.which|
000001b0  20 73 77 61 6c 6c 6f 77  73 20 75 70 20 61 6c 6c  | swallows up all|
000001c0  20 69 6e 70 75 74 2e 20  20 41 73 20 69 74 20 75  | input.  As it u|
000001d0  73 65 73 20 61 20 66 65  61 74 75 72 65 0a 77 68  |ses a feature.wh|
000001e0  69 63 68 20 69 73 20 62  75 69 6c 74 20 69 6e 20  |ich is built in |
000001f0  74 6f 20 52 49 53 43 20  4f 53 2c 20 74 68 69 73  |to RISC OS, this|
00000200  20 61 70 70 6c 69 63 61  74 69 6f 6e 0a 64 6f 65  | application.doe|
00000210  73 20 6e 6f 74 20 63 6f  6e 73 75 6d 65 20 61 6e  |s not consume an|
00000220  79 20 74 61 73 6b 20 6d  61 6e 61 67 65 72 20 6d  |y task manager m|
00000230  65 6d 6f 72 79 2c 20 68  6f 77 65 76 65 72 0a 79  |emory, however.y|
00000240  6f 75 20 73 68 6f 75 6c  64 20 62 65 20 63 61 72  |ou should be car|
00000250  65 66 75 6c 20 61 73 20  69 74 20 64 6f 65 73 20  |eful as it does |
00000260  6e 6f 74 20 61 73 6b 20  79 6f 75 20 66 6f 72 0a  |not ask you for.|
00000270  63 6f 6e 66 69 6d 61 74  69 6f 6e 20 75 6e 6c 65  |confimation unle|
00000280  73 73 20 79 6f 75 20 68  61 76 65 20 27 43 6f 6e  |ss you have 'Con|
00000290  66 69 72 6d 27 20 73 77  69 74 63 68 65 64 20 6f  |firm' switched o|
000002a0  6e 0a 6f 6e 20 79 6f 75  72 20 66 69 6c 65 72 20  |n.on your filer |
000002b0  6d 65 6e 75 2e 0a 0a 54  68 69 73 20 61 70 70 6c  |menu...This appl|
000002c0  69 63 61 74 69 6f 6e 20  69 73 20 50 75 62 6c 69  |ication is Publi|
000002d0  63 20 44 6f 6d 61 69 6e  2e 20 20 49 74 20 6d 61  |c Domain.  It ma|
000002e0  79 20 62 65 0a 66 72 65  65 6c 79 20 63 6f 70 69  |y be.freely copi|
000002f0  65 64 20 70 72 6f 76 69  64 65 64 20 74 68 61 74  |ed provided that|
00000300  20 69 74 20 69 73 20 6e  6f 74 20 73 6f 6c 64 20  | it is not sold |
00000310  66 6f 72 0a 70 72 6f 66  69 74 20 61 6e 64 20 69  |for.profit and i|
00000320  73 20 6e 6f 74 20 6d 6f  64 69 66 69 65 64 20 69  |s not modified i|
00000330  6e 20 61 6e 79 20 77 61  79 2e 20 20 4e 6f 20 73  |n any way.  No s|
00000340  69 6e 67 6c 65 0a 66 69  6c 65 20 6f 72 20 70 61  |ingle.file or pa|
00000350  72 74 20 6f 66 20 66 69  6c 65 20 73 68 6f 75 6c  |rt of file shoul|
00000360  64 20 62 65 20 63 6f 70  69 65 64 20 77 69 74 68  |d be copied with|
00000370  6f 75 74 20 74 68 65 0a  72 65 73 74 20 6f 66 20  |out the.rest of |
00000380  74 68 65 20 61 70 70 6c  69 63 61 74 69 6f 6e 20  |the application |
00000390  66 72 6f 6d 20 77 68 69  63 68 20 69 74 20 63 61  |from which it ca|
000003a0  6d 65 2e 0a 0a 49 66 20  79 6f 75 20 77 6f 75 6c  |me...If you woul|
000003b0  64 20 6c 69 6b 65 20 74  6f 20 63 6f 6e 74 61 63  |d like to contac|
000003c0  74 20 6d 65 20 66 6f 72  20 61 6e 79 20 72 65 61  |t me for any rea|
000003d0  73 6f 6e 2c 0a 6d 79 20  61 64 64 72 65 73 73 20  |son,.my address |
000003e0  69 73 3a 0a 0a 4c 69 6e  74 6f 6e 20 44 61 77 65  |is:..Linton Dawe|
000003f0  2c 0a 32 20 43 72 6f 63  6b 65 72 73 20 57 6f 6f  |,.2 Crockers Woo|
00000400  64 20 43 6f 74 74 61 67  65 73 2c 0a 43 6f 6c 64  |d Cottages,.Cold|
00000410  68 61 72 62 6f 75 72 2c  0a 44 6f 72 6b 69 6e 67  |harbour,.Dorking|
00000420  2c 0a 53 75 72 72 65 79  2c 0a 52 48 35 20 36 48  |,.Surrey,.RH5 6H|
00000430  45 2e                                             |E.|
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