Good point ! By the way, David, any news from the PalmOS 3.5 sources ?
It would help to understand a couple of things, sometimes... Some months ago you said "it's coming soon"... Now, how long is "soon" ? ;) -- Denis Faivre - [EMAIL PROTECTED] -- Ablivio - http://www.ablivio.com ----- Message d'origine ----- De : "John Leung" <[EMAIL PROTECTED]> Groupes de discussion : palm-dev-forum À : "Palm Developer Forum" <[email protected]> Envoyé : mardi 12 septembre 2000 04:46 Objet : Re: Recursive FrmReturnToForm : no way? > There's one more thing you may want to consider. FrmReturnToForm will > make a frmUpdateEvent only for OS3.5 and greater. For older OS, you > won't get a frmUpdateEvent from FrmReturnToForm. So if you're going > to use globals and test for it in Form2's frmUpdateEvent, then you'll > also need to test what OS you're running on and manually make a > FrmUpdateForm call right after you have your first FrmReturnToForm for > OS older than 3.5. > > > > On Mon, 11 Sep 2000 17:52:59 +0200 (MET DST), Denis Faivre > <[EMAIL PROTECTED]> wrote: > > > > >At 10:03 11/09/00 -0400, JB Parrett wrote: > >>>> In an application : > >>>> - Form1 invokes Form2 through FrmPopupForm(idForm2). > >>>> - Form2 invokes in turn Form3 through FrmPopupForm(idForm3). > >>>> - Form3 calls FrmReturnToForm(0) and sets a flag in globals to tell Form2 to > >>>> return as well. > >>>> - in frmUpdateEvent processing of Form2, the flag is tested and when true, > >>>> Form2 calls FrmReturnToForm(0). > >> > >>One approach is to call FrmCloseAllForms(); followed by FrmGoToForm(FORM1); > > > >Right, and that's what I finally did yesterday because in the case I > >described it works properly. However, suppose that I only want to get back 2 > >levels out of 4, it wouldn't work. > > > >A possible answer, that I experimented shortly (so it might be buggy) before > >turning to FrmCloseAllForms(), works like this : > >In Form2 event handler, when I get frmUpdateEvent, I test whether the update > >code is 0 (default value) or FORM_GOTO (custom value, 1 in this case). If 0, > >I simply do a FrmUpdateForm(Form2, FORM_GOTO) and return true (event > >handled). If FORM_GOTO, I do the FrmReturnToForm(0) and return true as well. > > > >This way, the 2nd frmUpdateEvent is received AFTER Form3 complete > >termination, so the error message does not show up. > > > >However, this is kind of tricky. I see this more like a work-around than a > >good implementation. > > > >-- Denis. > > > > > > > -- > For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/tech/support/forums/ > -- For information on using the ACCESS Developer Forums, or to unsubscribe, please see http://www.access-company.com/developers/forums/
