Heh. Yeah, in this case, the fact that the scroll bar's handle received the mouse input means that the mouse is over it, yet the error says the mouse isn't over it
Courier: "I need to give this package to Niclas and have him sign it; then I'll take it back" Niclas: "I'm Niclas - I'll accept it... ok, all set; here you go" Courier: "I'm sorry - I can only accept that package from Niclas" -T On Tue, Aug 4, 2009 at 7:14 AM, Niclas Hedhman <[email protected]> wrote: > On Tue, Aug 4, 2009 at 6:58 PM, Todd Volkert<[email protected]> wrote: > > Very curious. That's one of those "that should never happen" bugs... > > Well, people who knows me well, would say it is "Niclas Phenomenon", > i.e. anything I touch will break, even if it can't. Bugs have an > incredible tendency to show up in my face, and I am no longer > surprised. > > Anecdote; > > On Intel8032, way back in 1984 or so, we had a problem in our > real-time OS that it crashed mysteriously every now and so often. I > reduced the OS down to absolute minimum, and finally I isolated a > problem even in the following code snippet. > > loop: jmp loop ; Do nothing > > timer0: reti ; Return from interupt > > serial1: reti ; return from interupt > > After initializing the CPU, just stand in an empty loop, if timer or > serialport interrupt occurs, just return without anything. > THAT didn't work. Failure description; If both the serial and timer > interrupt occurred on the same clock cycle, only one return address > would be pushed to the stack, but both interrupt routines would > execute, and hence popping incorrectly. Intel denied the problem, but > in a newer revision of the CPU, they had fixed the problem. > > Funny enough, in 1997 I found exactly the same problem in the PIC > processors, and in that case there was a software work-around, unlike > the Intel case. > > > Cheers > -- > Niclas Hedhman, Software Developer > http://www.qi4j.org - New Energy for Java > > I live here; http://tinyurl.com/2qq9er > I work here; http://tinyurl.com/2ymelc > I relax here; http://tinyurl.com/2cgsug >
