jdresser@altair.uucp (Jay Dresser) (03/14/91)
(Here's a copy of a message I sent to CBM) As long as you're releasing a new version of the operating system, I thought I might tell you about a nifty bug that I discovered some years ago. Since it's so obvious, and easy to invoke, I assumed that you already knew about it. But my friends think you may not, so to be safe I'll tell you. It's the "drag the window off the screen" bug. By using nothing more than the normal Intuition controls, you can make the windows drag off the screen and, if you do it right, meet the guru. All you do is this: Place the mouse over the dragbar of any window (I've only tried this with WorkBench, but I assume it would work with other screens). Click and hold the left mouse button down. While holding the mouse button down, press left-Amiga-N or -M. Nothing appears to change, but you can now drag the window off the screen. Moving left and right you will see the edge that went off the screen wrap around to the other side. In most cases you can drag it back onto the screen and release the mouse button without harm. If you drag off the top or bottom, you will trash the memory lists and crash the machine immediately. Pretty neat, huh? No special code, nothing fancy, just the keyboard and mouse. Works every time. It seems to me like it's something that shouldn't be allowed, so I hope you can fix this before the next release. Happy bug hunting! Jay Dresser, jdresser@Tymnet.com
raible@cbmvax.commodore.com (Bob Raible - LSI Design) (03/14/91)
In article <225@tymix.Tymnet.COM> jdresser@altair.Tymnet.com (Jay Dresser) writes: >(Here's a copy of a message I sent to CBM) > >As long as you're releasing a new version of the operating system, I >thought I might tell you about a nifty bug that I discovered some years >ago. Since it's so obvious, and easy to invoke, I assumed that you >already knew about it. But my friends think you may not, so to be safe >I'll tell you. > >It's the "drag the window off the screen" bug. By using nothing more >than the normal Intuition controls, you can make the windows drag off >the screen and, if you do it right, meet the guru. > >All you do is this: > >Place the mouse over the dragbar of any window (I've only tried this >with WorkBench, but I assume it would work with other screens). Click >and hold the left mouse button down. While holding the mouse button >down, press left-Amiga-N or -M. Nothing appears to change, but you can >now drag the window off the screen. Moving left and right you will see >the edge that went off the screen wrap around to the other side. In >most cases you can drag it back onto the screen and release the mouse >button without harm. If you drag off the top or bottom, you will trash >the memory lists and crash the machine immediately. > >Pretty neat, huh? No special code, nothing fancy, just the keyboard >and mouse. Works every time. It seems to me like it's something that >shouldn't be allowed, so I hope you can fix this before the next >release. Happy bug hunting! > >Jay Dresser, jdresser@Tymnet.com FYI I can't duplicate using 1.3 . Can you provide version numbers of KS & WB ??? PS: on my machine pressing left-amiga-n causes no apparent change when WB screen is already in front, but left-amiga-m causes WB screen to scoot to the back(all while left mouse button is depressed over the WB drag bar). This seems to differ from your statement.
peter@cbmvax.commodore.com (Peter Cherna) (03/15/91)
In article <225@tymix.Tymnet.COM> jdresser@altair.Tymnet.com (Jay Dresser) writes: >It's the "drag the window off the screen" bug. By using nothing more >than the normal Intuition controls, you can make the windows drag off >the screen and, if you do it right, meet the guru. Pressing Amiga-N or -M during window dragging (or sizing!) to confuse Intuition into letting you drag the window off screen (or turn it inside-out) is one of the most amusing bugs that was in 1.3. It has been fixed for 2.0. By the way, it seems that you've set the "followup-to" line to comp.sys.amiga.tech. It should go to .programmer instead. >Jay Dresser, jdresser@Tymnet.com Peter -- Peter Cherna, Operating Systems Development Group, Commodore-Amiga, Inc. {uunet|rutgers}!cbmvax!peter peter@cbmvax.commodore.com My opinions do not necessarily represent the opinions of my employer. "If all you have is a hammer, everything looks like a nail."
dac@prolix.pub.uu.oz.au (Andrew Clayton) (03/16/91)
In article <19855@cbmvax.commodore.com>, Bob Raible - LSI Design writes: > In article <225@tymix.Tymnet.COM> jdresser@altair.Tymnet.com (Jay Dresser) writes: > >(Here's a copy of a message I sent to CBM) > > > >All you do is this: > > > >Place the mouse over the dragbar of any window (I've only tried this > >with WorkBench, but I assume it would work with other screens). Click > >and hold the left mouse button down. While holding the mouse button > >down, press left-Amiga-N or -M. Nothing appears to change, but you can > >now drag the window off the screen. Moving left and right you will see > >the edge that went off the screen wrap around to the other side. In > > FYI I can't duplicate using 1.3 . Can you provide version numbers of KS & WB ??? Works for me. Are you sure you're following the directions? Grab the scroll bar whilst grabbed, press Amiga-N Now move it around. If you're not careful, you meet Mr Guru. Another one, in a similar vein, is grabbing the window sizing gadget - make a window about 1/4 size of screen, and centre it. Then grab the sizing gadget then, without releasing the mouse button, press Amiga-N (nothing obvious happens), now resize the window [you didn't release the mouse button did you!], and Tah Dah! you can resize it to ANY size (no minimum) - now, resize it NEGATIVELY, (move mouse above top left corner of window) Let go of mouse button, and Instant Guru. I've tested this under 2.0x, and the system no longer lets you do it. A plus for the team at CATS. Dac --
orovner@sdcc13.ucsd.edu (Oleg Rovner) (03/17/91)
One way to fix the A-M/Drag bar bug on the earlier (non-2.0) OS versions is to run a workbench hack called "nExt windows" that causes your windows to be shown when theya re moved (i.e. one drags the whole window rather than simply the outline). OR -- ******************************************************************** Escape, Where's Escape? Goddamn It! I need escape -a student looking for the escape key at the student computer center at UCSD ********************************************************************
jms@vanth.UUCP (Jim Shaffer) (03/18/91)
In article <17572@sdcc6.ucsd.edu> orovner@sdcc13.ucsd.edu (Oleg Rovner) writes: >One way to fix the A-M/Drag bar bug on the earlier (non-2.0) OS >versions is to run a workbench hack called "nExt windows" that >causes your windows to be shown when theya re moved (i.e. one >drags the whole window rather than simply the outline). I've seen it. Incredibly slow. Yuck. -- * From the disk of: | jms@vanth.uucp | "Speeding through the Jim Shaffer, Jr. | amix.commodore.com!vanth!jms | universe, Thinking is 37 Brook Street | uunet!cbmvax!amix!vanth!jms | the best way to travel." Montgomery, PA 17752 | 72750.2335@compuserve.com | (The Moody Blues)
navas@cory.Berkeley.EDU (David C. Navas) (03/21/91)
In article <jms.3485@vanth.UUCP> jms@vanth.UUCP (Jim Shaffer) writes: >I've seen it. Incredibly slow. Yuck. Actually, I think it's pretty slick. It doesn't hold up the Screen Layer (permanently, anyway) like Intuition does. Considering the amount of trouble *that* implies, I'm not surprised it's slow. Gee--he's getting the window to draw directly into the bob -- neat. It's zippie on my 3000 :) :) David Navas navas@cory.berkeley.edu Signature erased, because it used to be something snide against the Mac. undergoing recnstrctn. [Also try c186br@holden, c260-ay@ara and c184-ap@torus]
rjc@geech.gnu.ai.mit.edu (Ray Cromwell) (03/21/91)
In article <12181@pasteur.Berkeley.EDU> navas@cory.Berkeley.EDU writes: >In article <jms.3485@vanth.UUCP> jms@vanth.UUCP (Jim Shaffer) writes: >>I've seen it. Incredibly slow. Yuck. > >Actually, I think it's pretty slick. It doesn't hold up the Screen Layer >(permanently, anyway) like Intuition does. Considering the amount of >trouble *that* implies, I'm not surprised it's slow. Gee--he's getting >the window to draw directly into the bob -- neat. > >It's zippie on my 3000 :) :) I've missed the rest of this thread, but if your refering to the NeXTWindows hack for Amiga, it doesn't use a bob, or the blitter. It's all done through the magic of dual-playfield mode, that's why text shows through. >David Navas navas@cory.berkeley.edu >Signature erased, because it used to be something snide against the Mac. >undergoing recnstrctn. [Also try c186br@holden, c260-ay@ara and c184-ap@torus] -- /~\_______________________________________________________________________/~\ |n| rjc@albert.ai.mit.edu Amiga, the computer for the creative mind. |n| |~| .-. .-. |~| |_|________________________________| |_| |________________________________|_|
jimm@amiga.UUCP (Jim Mackraz) (03/23/91)
)I've tested this under 2.0x, and the system no longer lets you do )it. A plus for the team at CATS. CATS is great, but this was my bug and my fix. (CATS is evangelism and support, along with some nice tools programming; I worked under contract for Commodore-Amiga Engineering.) This must be the 1000th time somebody proudly announced discovering this bug. Some bugs haunt you more than others... jimm -- --- opinions expressed herein are my own. --- "... Because they can." - profound punchline to joke about dogs
stevek@amiglynx.UUCP (Steve Krulewitz) (03/26/91)
I stumbeled upon that "bug" a while ago - though its not that big of a deal
though - how can you do it without "messing around?" If it does not work for
you, this may be the cause: If you have ClockDJ's screen cycle option
activated, it wont work (probably re-maps the Amiga M/N keys). I dont know if
this is true for other similar utilities. Also, if you pull the same trick
while dragging a screen up & down, it allows the mouse to move left & right
while dragging.
-=+ Steve Krulewitz +=- -=+ Fair Lawn, NJ +=- -=+
UUNET!tronbox!amiglynx!stevek.UUCP +=-