Home » Archimedes archive » Acorn User » AU 1995-06.adf » !StarInfo_StarInfo » Marriott/PtrWrapHlp
Marriott/PtrWrapHlp
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 User » AU 1995-06.adf » !StarInfo_StarInfo |
| Filename: | Marriott/PtrWrapHlp |
| Read OK: | ✔ |
| File size: | 031D bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
This small module allows the pointer to be 'wrapped' round the screen,
if it is moved off the side it appears on the other side. It provides
one star command: *Edges, which controls the distance away from the edge
the mouse pointer must be before wrapping occurs (it is best NOT put at
less than 2). I have seen several other implementations of this, one
of them on the Acorn User Shareware disc and one on an ancient BAU
magazine disc, but I think mine is the best because:
a) It is a module and thus takes up only 816 bytes of RMA whereas the
others all took at least 32k on a 4Mb machine.
b) It will work within any program which uses the mouse even outside
the desktop, although some screen modes do give problems when
edge settings are too low.
c) It is just wonderful. 00000000 54 68 69 73 20 73 6d 61 6c 6c 20 6d 6f 64 75 6c |This small modul| 00000010 65 20 61 6c 6c 6f 77 73 20 74 68 65 20 70 6f 69 |e allows the poi| 00000020 6e 74 65 72 20 74 6f 20 62 65 20 27 77 72 61 70 |nter to be 'wrap| 00000030 70 65 64 27 20 72 6f 75 6e 64 20 74 68 65 20 73 |ped' round the s| 00000040 63 72 65 65 6e 2c 0a 69 66 20 69 74 20 69 73 20 |creen,.if it is | 00000050 6d 6f 76 65 64 20 6f 66 66 20 74 68 65 20 73 69 |moved off the si| 00000060 64 65 20 69 74 20 61 70 70 65 61 72 73 20 6f 6e |de it appears on| 00000070 20 74 68 65 20 6f 74 68 65 72 20 73 69 64 65 2e | the other side.| 00000080 20 49 74 20 70 72 6f 76 69 64 65 73 0a 6f 6e 65 | It provides.one| 00000090 20 73 74 61 72 20 63 6f 6d 6d 61 6e 64 3a 20 2a | star command: *| 000000a0 45 64 67 65 73 2c 20 77 68 69 63 68 20 63 6f 6e |Edges, which con| 000000b0 74 72 6f 6c 73 20 74 68 65 20 64 69 73 74 61 6e |trols the distan| 000000c0 63 65 20 61 77 61 79 20 66 72 6f 6d 20 74 68 65 |ce away from the| 000000d0 20 65 64 67 65 0a 74 68 65 20 6d 6f 75 73 65 20 | edge.the mouse | 000000e0 70 6f 69 6e 74 65 72 20 6d 75 73 74 20 62 65 20 |pointer must be | 000000f0 62 65 66 6f 72 65 20 77 72 61 70 70 69 6e 67 20 |before wrapping | 00000100 6f 63 63 75 72 73 20 28 69 74 20 69 73 20 62 65 |occurs (it is be| 00000110 73 74 20 4e 4f 54 20 70 75 74 20 61 74 0a 6c 65 |st NOT put at.le| 00000120 73 73 20 74 68 61 6e 20 32 29 2e 20 49 20 68 61 |ss than 2). I ha| 00000130 76 65 20 73 65 65 6e 20 73 65 76 65 72 61 6c 20 |ve seen several | 00000140 6f 74 68 65 72 20 69 6d 70 6c 65 6d 65 6e 74 61 |other implementa| 00000150 74 69 6f 6e 73 20 6f 66 20 74 68 69 73 2c 20 6f |tions of this, o| 00000160 6e 65 20 0a 6f 66 20 74 68 65 6d 20 6f 6e 20 74 |ne .of them on t| 00000170 68 65 20 41 63 6f 72 6e 20 55 73 65 72 20 53 68 |he Acorn User Sh| 00000180 61 72 65 77 61 72 65 20 64 69 73 63 20 61 6e 64 |areware disc and| 00000190 20 6f 6e 65 20 6f 6e 20 61 6e 20 61 6e 63 69 65 | one on an ancie| 000001a0 6e 74 20 42 41 55 0a 6d 61 67 61 7a 69 6e 65 20 |nt BAU.magazine | 000001b0 64 69 73 63 2c 20 62 75 74 20 49 20 74 68 69 6e |disc, but I thin| 000001c0 6b 20 6d 69 6e 65 20 69 73 20 74 68 65 20 62 65 |k mine is the be| 000001d0 73 74 20 62 65 63 61 75 73 65 3a 0a 0a 20 20 61 |st because:.. a| 000001e0 29 20 49 74 20 69 73 20 61 20 6d 6f 64 75 6c 65 |) It is a module| 000001f0 20 61 6e 64 20 74 68 75 73 20 74 61 6b 65 73 20 | and thus takes | 00000200 75 70 20 6f 6e 6c 79 20 38 31 36 20 62 79 74 65 |up only 816 byte| 00000210 73 20 6f 66 20 52 4d 41 20 77 68 65 72 65 61 73 |s of RMA whereas| 00000220 20 74 68 65 0a 20 20 20 20 20 6f 74 68 65 72 73 | the. others| 00000230 20 61 6c 6c 20 74 6f 6f 6b 20 61 74 20 6c 65 61 | all took at lea| 00000240 73 74 20 33 32 6b 20 6f 6e 20 61 20 34 4d 62 20 |st 32k on a 4Mb | 00000250 6d 61 63 68 69 6e 65 2e 0a 20 20 62 29 20 49 74 |machine.. b) It| 00000260 20 77 69 6c 6c 20 77 6f 72 6b 20 77 69 74 68 69 | will work withi| 00000270 6e 20 61 6e 79 20 70 72 6f 67 72 61 6d 20 77 68 |n any program wh| 00000280 69 63 68 20 75 73 65 73 20 74 68 65 20 6d 6f 75 |ich uses the mou| 00000290 73 65 20 65 76 65 6e 20 6f 75 74 73 69 64 65 0a |se even outside.| 000002a0 20 20 20 20 20 74 68 65 20 64 65 73 6b 74 6f 70 | the desktop| 000002b0 2c 20 61 6c 74 68 6f 75 67 68 20 73 6f 6d 65 20 |, although some | 000002c0 73 63 72 65 65 6e 20 6d 6f 64 65 73 20 64 6f 20 |screen modes do | 000002d0 67 69 76 65 20 70 72 6f 62 6c 65 6d 73 20 77 68 |give problems wh| 000002e0 65 6e 0a 20 20 20 20 20 65 64 67 65 20 73 65 74 |en. edge set| 000002f0 74 69 6e 67 73 20 61 72 65 20 74 6f 6f 20 6c 6f |tings are too lo| 00000300 77 2e 0a 20 20 63 29 20 49 74 20 69 73 20 6a 75 |w.. c) It is ju| 00000310 73 74 20 77 6f 6e 64 65 72 66 75 6c 2e |st wonderful.| 0000031d
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