OpenEuphoria

Re: Win32lib setText

• Posted by "Derek Parnell" <ddparnell at bigpond.com> Nov 11, 2003
• 528 views

----- Original Message ----- 
From: "H.W Overman" <euman at bellsouth.net>
To: <EUforum at topica.com>
Subject: Re: Win32lib setText


> 
> 
> >From: "Derek Parnell" <ddparnell at bigpond.com>
> 
> >> ----- Original Message ----- 
> >> From: "H.W Overman" <euman at bellsouth.net>
> 
> > > Hey all,
> > >
> > > Using Win32lib v.59.1 I seem to have an issue with setText to SLE Edit
> > > controls.
> > > If I specifically send a string sequence e.g; setText(Diag[i],"work")
> > > this seems fine but, if I return a string sequence from a buffer it
> doesnt
> > > work correctly.
> > >
> > > Has anyone else ran across this?
> >
> > <soapbox>Please be a LOT more explicit when asking for help. This request
> is *way* to vague for anyone to guess correctly what your problem
> is.</soapbox>
> >
> 
> There must be more than one way to retrieve a string from a buffer, I know
> of only one way...
> sorry for not being specific.
> 
> > Its not much use just saying "it doesnt work correctly" because that does
> not give us any information to help you.
> 
> No (0) string is inserted into the SLE.
> 
> >For example, is it displaying nothing or displaying strange characters?
> 
> No (0) string is inserted into the SLE. (nothing displayed)
> 
> >And what does "return a string sequence from a buffer" actually mean?
> >I guess you are using an API functon which is returning a zero-terminated
> string at a RAM location and you are getting that string out of RAM and
> converting it to >a sequence then using setText().
> 
> Your a very good guess Derek,
> I need to know how to convert the z-string to a sequence suitable for use
> with setText
> 
> >Can you see what is in the sequence-string before calling setTExt() using
> the trace or even the '?' method? What is the contents?
> >Are you sure you are fetching the string correctly from RAM? What is the
> API routine you are using?
> >Is it just this API routine or all API routines that return a RAM string?
> >Can you display the sequence string in a console window?
> 
> YES! The string /s do show up in a console window, this makes me think there
> may be something wrong with setText or,
> Im not sure how I need to convert the z-string to acceptable sequence
> suitable for use with setText
> 
> > -- 
> > Derek
> 

I continue to no problem with this on my system. Here is some example code...

---------------------
without warning
include win32lib.ew

integer Win, TPath, Btn

Win = create(Window, "Temporary File Path", 0, 0,0, 400, 200, 0)
TPath = create(SleText, "NOTHING HERE YET", Win, 10, 10, 350, 25, 0)
Btn  = create(Button, "Get Path", Win, 10, 55, 100, 25, 0)


procedure Click_Btn(integer self, integer event, sequence parms)
    atom addr
    sequence temp_path
    integer len
 
    len = 255
    addr = allocate(len)

    if w32Func(xGetTempPath, {len, addr}) then
        temp_path = peek_string(addr)
    else
        temp_path = ".\\"
    end if

    free(addr)

    setText(TPath, temp_path)
end procedure

setHandler(Btn, w32HClick, routine_id("Click_Btn"))

WinMain( Win, Normal)
---------------------

Again, I ask ... What does the sequence contain? In other words, can you show
me, in a reply email, the elements that make up the sequence you are trying to
set the SLE to?

-- 
Derek