On Sun, Oct 27, 2002 at 11:38:25AM -0800, Eric J Schwertfeger wrote: > HandEra has something like JogAssist, though nowhere near as full > featured. Neither the user nor the programmer have to be aware of it, > because if the program's event handler returns handled when it gets a > jogdial event, nothing else is done with that event, so the jogdial > helper never sees the event. This matches the way events are handled just > about everywhere in the PalmOS API. (skipping detailed lecture, since I > think everyone on this list should know what I'm talking about).
Although the whole 'handled = true' setup in PalmOS's programming method is simple, its actually very powerful in a serial way, once you get the idea behind the order/hierarchy on how everything works. > On the other hand, with the Sony JogAssist API, either the user must turn > off JogAssist for that application, or the programmer must futz with API > calls to turn off (some|all) JogAssist functions on (some|all) forms. > Otherwise, the application never even sees the raw events. It isn't a > really bad way to do it, but it isn't the PalmOS way, and I think the > PalmOS way is better, even if the PalmOS way isn't precident. I do see > how people would prefer the Sony way if it wasn't being used in a system > that does everything a different way, as that would be a matter of taste. I agree. Though I like how Sony handles its jogdial events, I dislike the jogassist program itself. It makes too many assumptions. That's why in jogdial.c's HandleJogAssistMask() I wrote: /* Because JogAssist is inconvenient at best, we need to check * if its enabled, back up the current mask and set our own to * block any JogAssist-ing while plucker is running. */ There havn't been any complaints, partly becuase of the level of native jogdial support, so everything seems to be running fine with it disabled :) -- Adam McDaniel Array.org Calgary, AB, Canada
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