Steve,
The short version is that, if you return false, the frmUpdateEvent flows to
FormHandleEvent, which provides default handling -- in this case a redraw
via FrmDrawForm(). Generally, if you're handling this event yourself you
probably don't need the FrmDrawForm(), and in fact, you're inviting bugs in
3.5+, because _technically_ FrmDrawForm() will clear the display before
(re)drawing the form, so anything you drew yourself beforehand is gone, or
at least redrawn.
I guess that means the even shorter version is: return true after handling
frmUpdateEvent.
oge
Steve Patt wrote:
> Now that you mention this, I look at code in several of my apps and
> sometimes I'm returning true after processing frmUpdateEvent and
> sometimes false. I have no idea why, and I can't say that it has
> mattered, at least so far as I've noticed. Anyone care to shed any light
> on why this might (or might not) matter?
>
> Steve Patt
> President, Stevens Creek Software
> http://www.stevenscreek.com/palm
> Best PQA ("ePQA"), PalmSource 99
> Best Application ("PizzaScan"), Palm Developer's Conference 1998
> First printing software for the Palm - September, 1997
