OpenEuphoria

Re: ATTN Derek: Win32Lib Menu Bitmaps

• Posted by jordah at btopenworld.com Mar 21, 2003
• 376 views

----- Original Message -----
From: "Derek Parnell" <ddparnell at bigpond.com>
To: "EUforum" <EUforum at topica.com>
Subject: Re: ATTN Derek: Win32Lib Menu Bitmaps


>
> On Fri, 21 Mar 2003 01:42:42 -0000, <jordah at btopenworld.com> wrote:
>
> >
> > Hi Greg,
> > I have written to this list around 5 times donating a routine for doing
> > this. Infact, i was convincing Derek to add it to the win32lib but it
> > seemed
> > trivial. Anyway, i also have a written win32lib example that comes with
> > my
> > old low level routines library. check the user contributions and i'm
sure
> > you will find it.
> >
>
> I'm sorry Jordah, if you think that I've deliberately excluded your
> contribution to the library. Please realize that it is only through my
> misunderstanding that I was not even aware that such an example of menu
> bitmaps was available.

It's ok, I brought up the issue in the wrong time. It was around the time
that win32lib had a lot of bugs and gdi leaks. So, u must have been
stressed...blah..blah...etc
Anyway,
      I think (what i'll attempt in euwin), is to create a new event handle
eg wmOwnerPaint, similarly in win32lib w32H_OWNERPAINT. When trapping the
WM_DRAWITEM message,  the variable params(variable params of called
routine_id), will carry the {DC,{x,y,cx,cy},userdata....}. ie the elements
of the DRAWITEMSTRUCT structure(lParam). With this done, the new user and
advanced users can perform gdi operations on their controls....setfont()...
     I think you will have to take extra gdi management for the owner-draw
controls...This won't slow down the perfomance a lot since u will be doing
it within the WM_DRAWITEM message other than congested WM_PAINT message.
     If you really didn't want to break existing code then you could create
new controls eg menuitemex,tabitemex. that could take bmpfilenames or
handles as parameters of the create() then auto matically do the drawing
etc......
     I HTH.........
     Jordah
>
> What I'd like to do, is to provide assistance in win32lib for owner drawn
> objects, in a generic sense. I can then use that (as your example does
> demostrate) to provide in-built support for bitmaps in menus, tabitems and
> statusbar panels.
>
> --
>
> cheers,
> Derek Parnell
>
>
>
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>