[RE: [lazarus] Components:]

[John Margaglione]

I believe that the component is the TPaintBox, and a TPaintBox has a
TCanvas.  The hierarchy looks like this:

TPaintbox
|
TGraphicControl - has the Canvas property and a virtual Paint method called
when the WM_PAINT message is called.
|
TControl

TWinControl, on the other hand, can
1.  receive focus while the app is running
2.  can contain other controls ( a TGraphicControl can not do this, or
should not do this )
3.  have a window handle (Win32 specific, but there is a gtk handle of
sorts)

We should probably implement TGraphicControl and TWinControl before doing
TPaintbox.

Now that we have a good idea of how to implement controls, we should start
updating that list of controls with names again.  We also should get a
handle on the order of precedence for the building of controls.  We have
TControl built, but we need TGraphicControl and TWinControl before we really
start hacking on the other controls.

I haven't had a chance to look at the latest work you guys have done, but my
wife has friends over tonight, which means I can hide at the computer all
night!!!

John Margaglione
jmargaglione at hotmail.com

----- Original Message -----
From: Shane Miller <SMiller1 at stvgb.org>
To: <lazarus at miraclec.com>
Sent: Thursday, July 15, 1999 7:55 AM
Subject: Re: [RE: [lazarus] Components:]


>
>
> >>> Michal Bukovjan <mbukovjan at netscape.net> 07/15 7:12 AM >>>
> >I (one of the lurkers) could take something, but I am still unable to
compile
> >CVS sources because of errors 9999 (FPC 0.99.12), and the compilation of
FPC
> >from CVS is somewhat complicated for me.
>
> >I think the official FPC could be updated more often, as well as beta
releases
> >of FPC.
>
>
> You could download the snapshots.  Not sure how old they are though but
they should be newer that the 0.99.12 version.
>
> >BTW, the Lazarus site is not very informative. Could someone take time
and
> >explain the basic component framework, or so ?
>
>
> That sounds like boring html stuff though!  I suppose your right though.
We could get "a bit" more indepth
> in our descriptions on the code and how we are doing things.  Thing is, we
just got a handle on it recently (if we don't change it again) so we haven't
had time.  Cliff, Michael, Peter and I are programmers, so it's obviously
not our first love, but we will get it updated.
>
> Cliff, should the Drawing widget be the TCanvas or a TPaintbox?
>
> Shane
>
>
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