OpenEuphoria

1. child windows not receiving focus events?

• Posted by "Greg Haberek" <ghaberek at wowway.com> Jul 12, 2004
• 566 views

I'm writing an app that needs a child window to receive GotFocus/LostFocus
events. The problem is, the child window only receives an initial LostFocus
event. I'm using Win32Lib 0.60 and Windows XP Pro. I've attached a small
example. As you can see when running it, clicking or whatever does not
trigger a GotFocus on the child window, but clicking the EditText controls
does trigger the events. I know there's got to be a WS_ or WS_EX_ flag that
triggers this or something.

~Greg


begin 666 focus_demo.exw
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`
end

3. Re: child windows not receiving focus events?

• Posted by "Greg Haberek" <ghaberek at wowway.com> Jul 12, 2004
• 498 views

> Is your app losing focus and you want to know when, or the window
> itself?

I'm using Windows Caret routines and I need to create the Caret when I have
focus, and destroy the Caret when I lose focus. If I use a child window to
hold the Caret, then that window needs to receive GotFocus/LostFocus events.
I don't see why an EditText control can trigger these events, but a Window
can't. Aren't all other controls based off a basic child window?

> Couldn't make out the following... :)

Well that was supposed to be an attachment, but Outlook Express has been
acting really flakey lately. I think I'm going to start using Mozilla for my
web stuff.

5. Re: child windows not receiving focus events?

• Posted by "Greg Haberek" <ghaberek at wowway.com> Jul 14, 2004
• 558 views

Nope, that didn't work. But I can't believe the solution didn't reach out of
the monitor and slap me in the face! All I did was test for any mouse event
except MouseMove and call setFocus() for the right window. I'm sure I could
test for some type of keyboard input, too.

procedure SetFocusHandler( integer pSelf, integer pEvent, sequence pParams )

    if pParams[1] != MouseMove then
        setFocus( pSelf )
    end if

end procedure
setHandler( MyWin, w32HMouse, routine_id("SetFocusHandler") )

----- Original Message -----
From: "Derek Parnell" <guest at RapidEuphoria.com>
To: <EUforum at topica.com>
Sent: Tuesday, July 13, 2004 4:08 PM
Subject: RE: child windows not receiving focus events?


>
>
> posted by: Derek Parnell <ddparnell at bigpond.com>
>
> Try these two patches in the win32lib to see if it helps..
>
> --- Patch #1 ---
> Find the routine "tab_direction()" and replace the lines ...
>
>     if  window_family[id] = WINDOW  or find(window_type[id],{ TabItem})
then
>         -- parent is self
>         parent = id
>
>
> with ...
>
>     if  find(window_type[id],{ TabItem}) then
>         -- parent is self
>         parent = id
>
>     elsif window_family[id] = WINDOW and window_owner[id] = 0 then
>         -- parent is self
>         parent = id
>
> --- Patch #2 ---
> In the routine createWindow(), replace the lines ...
>
>     if owner != 0 and  and_bits(WS_VISIBLE, lFlags) then
>         call_proc(r_openWindow, {id, Normal})
>     end if
>
>
> with ...
>
>     if owner != 0 then
>         if  and_bits(WS_VISIBLE, lFlags) then
>             call_proc(r_openWindow, {id, Normal})
>         end if
>
>         if and_bits( WS_TABSTOP, lFlags ) then
>             -- add to the owner's focus_order list
>             window_focus_order[owner] &= id
>         end if
>
>     end if
>
>
> Then all you have to do is create your child window with the
> WS_TABSTOP flag included.
>
> --
> Derek Parnell
> Melbourne, Australia
>
>
>
>