From: "Adam Braun" <[EMAIL PROTECTED]> > The main form of the application (call it form A) displays another form > (call it form B) using a call to FrmPopupForm. Form B is a modal dialog box > that only takes up half the screen. It has some tricky behavior so I have > to use this call to get it going. When it is done, it calls > FrmReturnToForm(0) to get back to form A. At this point, the data in form A > has changed and I redraw the display on the frmUpdateEvent. Unfortunately, > even though the whole screen is redrawn, only the part that was under form B > is actually changed on the display. I've tried erasing the form, drawing > it, and all sorts of combinations, but I can't get the whole display to be > updated. > >From memory this has to do with the way PalmOS handles FrmReturnToForm. You've probably got savebehind set and what PalmOS is doing is redrawing the saved area, thus avoiding the need to issue an frmUpdateEvent. I think that in doing this there are some clipping issues - I recall conversations in the past about clipping regions preventing updates outside the area of the current modal form (sorry to be vague, but I don't have time to confirm these suspicions with eScribe searches).
The other possibility is that you're calling FrmReturnToForm and then doing the redraw immediately forgetting (as I did last week) that it takes time for the return to be actioned. In this case your drawing may be sucessful, but PalmOS is drawing the saved screen area over the top of your changes when it activates the underlying form. Single-stepping in the emulator should confirm if this is happening. Whichever the case, I would try calling FrmUpdateForm following the FrmReturnToForm to force a repaint of the entire form. You could attach your redraw logic to this. Chris Tutty Director Izyn Technologies Ltd -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
