From: "Paul Jensen" <[EMAIL PROTECTED]> > I distribute a couple of freeware PalmOS apps (mainly as a hobby), > and I have received a couple of reports from users with Treo 650s. > They claim when they run the apps they get a white screen (or in one > case that they can see buttons, but not a drawn image). > I've seen that before - now if only I could remember what caused it :-)
I haven't worked on a Treo650 and I've accidentally caused problems like that so it might not be the Treo. From memory one of the causes was some old code built to allow custom drawing onto Palm OS 3.5 and 4 screens that was messing up under Palm OS 5 and, also from memory, it was related to changes in the event sequences or timing of events sent when a form is opened and drawn. I'm not sure how the speed of the Treo650 relates to the T/E so can't comment on whether this might be affecting event sequences (leading to the problem not presenting for you). If one of the users is willing to put in the time as a tester I'd suggest cleaning up the form open and draw logic specifically for Palm OS 5 and see if that improves things. Also try to make sure that you're not assuming too much about the event sequence you will receive when a form opens. Chris Tutty -- For information on using the PalmSource Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
