In my app, right at the beginning of AppStart() I do WinDrawChars() to display a nasty 'please wait' message. This works fine.
However, for debugging I've added some pixels that invert when data is sent or recieved on a socket (using WinInvertPixel() ). This gets done at some point after the WinDrawChars() - in fact it's the first thing to be done in the app's event loop. However, this (on POSE using a debug ROM) complains about reading from some memory - probably because of drawing ops before setting a draw window. Well now I check to see if there's a draw window before doing my WinInvertPixel() - things work again. However... I'm left with not understanding why WinDrawChars() works fine before there's a draw window - but WinInvertPixel() doesn't? I'm sure if I read around I could find out - but I dont' have the time right now - and I was hoping someone who knew about this sort of stuff could fill me in. Thanks in advance, Russell -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/tech/support/forums/
