OpenEuphoria

Re: I have searched but not found a solution to this error in win32lib.

• Posted by CChris <christian.cuvier at agriculture.gouv.fr> May 10, 2007
• 975 views

amux wrote:
> 
> Derek Parnell wrote:
> > 
> > amux wrote:
> > > 
> > > It didn´t help, I get the same errormessage.
> > > 
> > > Judith Evans wrote:
> > > > 
> > > > amux wrote:
> > > > > 
> > > > > Error code 461
> > > > > Failed to acquire at hWnd when creating a control
> > > > > Win32Lib v0.60 11-Jul-2004
> > > > > 
> > > > > I have searched but not found a solution to this bug.
> > > > > (when run in winXP and win2000)
> > > > > 
> > > > > /amux
> > > > 
> > > > I had this problem until Sascha Zindel updated win32lib v 0.60 for me to
> > > > use
> > > > with IDE.
> > > > 
> > > > You can download IDEWin32lib.zip from Enhanced IDE on the RDS
> > > > Contribution
> Page.</font></i>
> > > > You don't need to download the IDE itself.
> > > > 
> > > > This win32lib version does not have the recent fixes posted lately on
> > > > EuForum.
> > > 
> > 
> > In that case you need to do the slow process of cutting away the bits of
> > your
> > program that are not part of the problem until you are left with the
> > smallest
> > bit of source code that demonstrates the issue. That will help us isolate
> > the
> > fix.
> > 
> > This process is slow because you have to do a lot of trial and error
> > cutting.
> >  How big is the program now? 
> 
> 52 objects on the (only) form
> 90 variables
> 800 rows(total)
> 
> 
> >See if you can isolate the problem to a program
> > that has only a dozen or so lines.
> > 
> > -- 
> > Derek Parnell
> > Melbourne, Australia
> > Skype name: derek.j.parnell
> 
> 
> /amux

I remember having an error 461 with vintage win32lib v0.60.6 while trying
to access RichEdit controls under win98/2k I think.
After searching the forum (you should really experiment with this, it can
dig up some gems for you), I found this post:

<pre>
Date: 2004 Sep 9 23:40
 From: Derek Parnell <ddparnell at bigpond.com>
Subject: Re: win32lib v60.5 error code 461

I messed up with RichEdit on old Windows systems.

Look in the w32DLL.ew include file. Naar the end of the file you
will see some code dealing with RichEdit classes. Replace
all after the comments ...

--/topic Constant
--/const riched32
--/desc Windows Library: Rich Edit Control

with ...

global constant
riched32    =
    registerw32Library({"Msftedit.dll","riched20.dll","riched32.dll"}),
   -- Rich Edit control
    WC_RICHEDIT10       = "RICHEDIT",
    WC_RICHEDIT20       = "RichEdit20A",
    WC_RICHEDIT50       = "RICHEDIT50W"
global sequence WC_RICHEDIT

vw32Libraries[riched32][1] = linkDLL(vw32Libraries[riched32][2])
if vw32Libraries[riched32][1][1] = 1 then
    WC_RICHEDIT = WC_RICHEDIT50
    
elsif vw32Libraries[riched32][1][1] = 2 then
    WC_RICHEDIT = WC_RICHEDIT20
    
else
    WC_RICHEDIT = WC_RICHEDIT10
end if

-- 
Derek Parnell
Melbourne, Australia
</pre>

Perhaps this is it? v0.60.6 didn't incorporate this fix, so you'll still
have to patch the code as suggested.

CChris