How come you do not use WinEraseRectangle() instead of a bunch
of calls to WinEraseLine()?
I have code that does:
FrmInitForm()
WinEraseRectangle()
FrmSetActiveForm()
FrmSetEventHandler()
FrmDrawForm()
and it seems to work okay.
Brandon
----- Original Message -----
From: D. DeVecchio <[EMAIL PROTECTED]>
To: Palm Developer Forum <[EMAIL PROTECTED]>
Sent: Saturday, April 22, 2000 3:08 PM
Subject: Re: Bug in OS 3.5? Would someone else please try this?
> Roger Chaplin,
>
> First, thanks for your suggestion, it is a good temporary solution!
>
> but.....
>
>
> On Sat, 22 Apr 2000 11:01:40 -0400, you said:
>
> > You need to call FrmDrawForm before you can call WinEraseLine (or any
> > other OS routine that changes the visible content of the form).
>
> Okay that is a good system for both OS's (though not _required_ in 3.3)
>
> So now we have.....
>
> FrmInitForm
>
> FrmSetactiveForm // alows you to draw in OS3.3
>
> FrmDrawForm // to alow me to draw in OS3.5
>
> for (j = 0;j<160;j++)WinEraseLine(0,j,159,j);
> // this line is required to erase the previous
> // form which is not erased with FrmDrawForm
> // in OS3.3. the Form is just drawn over the top of
> // the previous form. This line gives you a clean slate.
> // possibly FrmEraseForm would be better
>
> FrmDrawFrom. // to get the form elements back on there
>
> <other windows drawing code if needed>
>
> --------
>
> My question is, is it really necessary to cal DrawFormTwice? my form is
> complicated and it takes a second or so to draw. Having to wait for it
> to draw and then erase and then draw again causes a noticeable delay and
> messes up that "seemless" integration look so often referred to in thhe
> programning manuals.
>
>
>
>
> derik
>
> email: [EMAIL PROTECTED]
>
> WWW: http://www.pobox.com/~derik
>
>
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