wxhaskell-users — General mailing list for wxhaskell users

Re: [wxhaskell-users] Re: unicode support

[Eric Y. K. <Eri...@lo...>]

On Mon, Sep 26, 2005 at 23:34:27 +0900, shelarcy wrote:
> >MacOS X works best with wxWidgets 2.5.4. The latest stable release
> >(currently wxMAC-2.6.0) does not display menus properly.
>=20
> wxWidgets 2.6.1 or latest wxWidgets 2.6.2 (or enable unicode option)
> don't exist this problem, or you fixed that?

To be honest, i don't know if the problem is still there, as I myself
have not been able to make it work yet.

Best,

--=20
Eric Kow                     http://www.loria.fr/~kow
PGP Key ID: 08AC04F9         Merci de corriger mon fran=E7ais.

[wxhaskell-users] font and wxgrid

[miguel v. c. <muc...@ho...>]

hello, i am having some problems with wxgrid again, how i can change font in 
wxgrid ?

[wxhaskell-users] problems with grid

[miguel v. c. <muc...@ho...>]

how i can get selected cells in grid ?. i use  the function 
gridGetSelectedCells (i have selected cells in grid) and then i use 
gridCellCoordsArrayGetCount to get the number of cells selected but the 
result is nothing (0). i don't know what i have to do or what is what i'm 
wrong. thanks

code example :

        do  {putStrLn ("llega aqui");
             	coordenadas <- gridGetSelectedCells grid;  ( is coordenadas 
the selected cells ? )
	--columnas_seleccionadas <- gridGetSelectedCols grid;
	--filas_seleccionadas <- gridGetSelectedRows grid                           
    		numero_celdas <- gridCellCoordsArrayGetCount coordenadas;( number of 
selectedcells ?)
                --gridClearSelection grid;
                --seleccionada <-gridIsInSelection grid 3 3;
                p <- gridCellCoordsArrayItem coordenadas 1;  ( xy of the 
first selected cells ?)
                putStrLn (show p) --    ( do exception. why ?)
               }

Re: [wxhaskell-users] Re: unicode support

[shelarcy <she...@ca...>]

On Mon, 26 Sep 2005 19:24:49 +0900, Eric Y. Kow <Eri...@lo...> wrote=
:
> One thing I did not mention is that there are some problems with dynami=
c
> events and the 2.5.3 version of wxWidgets, so this might be related.
>
> Also, if you are interested, I am working on a DarwinPort for wxhaskell
> (http://bugzilla.opendarwin.org/show_bug.cgi?id=3D5006)
>
> Only the gcc 3.3 version seems to work for now.  The 4.0 version, being
> linked to wxWidgets 2.6.1, might conceivably work better, but I am
> having trouble making it compile.  So if you have some free time to pla=
y
> around with this, i'd be curious to see if you have any luck compiling
> wxhaskell with gcc 4.0.

I  use gcc 3.3 now, because wxHaskell with wxWidgets 2.5.3 can't be
built by gcc 4.0.


Hmm, wxWidgets 2.6.1, I'm worrying this point -
wxhaskell site says:

> MacOS X works best with wxWidgets 2.5.4. The latest stable release
> (currently wxMAC-2.6.0) does not display menus properly.

wxWidgets 2.6.1 or latest wxWidgets 2.6.2 (or enable unicode option)
don't exist this problem, or you fixed that?


--=20
shelarcy <shelarcy capella.freemail.ne.jp>
http://page.freett.com/shelarcy/

Re: [wxhaskell-users] Re: unicode support

[shelarcy <she...@ca...>]

On Tue, 13 Sep 2005 03:05:48 +0900, Eric Y. Kow <Eri...@lo...> wrote=
:
> Hi again,
>
> Attached is the next version (04) of the patch.  It fixes compile issue=
s
> on Linux.
>
> Now the Unicode patch has been tested and seems to work on both
> Mac and Linux.

Hi, Eric.

I tested to build wxfuit's paddle sample on Mac OS X Tiger with GHC-6.4.1=
.
paddle sample doesn't works well, it notices error messegage and
display wrong picture - background color is black and objects are
rendered only frame -, slide bar's top and bottom are reversed.

Attached is Yampa (afrp-0.4-src.tgz) and wxfruit patch for ghc-6.4.x with
wxhaskell-0.9.x, so you can test soonly,
I don't test to use make, so I also attach cabal files.


* wxFruit
http://zoo.cs.yale.edu/classes/cs490/03-04b/bartholomew.robinson/

> Could somebody give it a try on Windows?
>
> (Note: this patch was motivated by attempts to compile wxhaskell on
>  OS X Tiger, which includes WxWidgets, but with --enable-unicode)
>



--=20
shelarcy <shelarcy capella.freemail.ne.jp>
http://page.freett.com/shelarcy/

Re: [wxhaskell-users] Re: unicode support

[shelarcy <she...@ca...>]

On Tue, 13 Sep 2005 03:05:48 +0900, Eric Y. Kow <Eri...@lo...> wrote=
:
> Hi again,
>
> Attached is the next version (04) of the patch.  It fixes compile issue=
s
> on Linux.
>
> Now the Unicode patch has been tested and seems to work on both
> Mac and Linux.

Hi, Eric.

I tested to build wxfuit's paddle sample on Mac OS X Tiger with GHC-6.4.1=
.
paddle sample doesn't works well, it notices error messegage and
display wrong picture - background color is black and objects are
rendered only frame -, slide bar's top and bottom are reversed.

Attached is Yampa (afrp-0.4-src.tgz) and wxfruit patch for ghc-6.4.x and
wxhaskell-0.9.x, so you can test soonly,


* wxFruit
http://zoo.cs.yale.edu/classes/cs490/03-04b/bartholomew.robinson/

> Could somebody give it a try on Windows?
>
> (Note: this patch was motivated by attempts to compile wxhaskell on
>  OS X Tiger, which includes WxWidgets, but with --enable-unicode)
>



--=20
shelarcy <shelarcy capella.freemail.ne.jp>
http://page.freett.com/shelarcy/

[wxhaskell-users] Announcing AutoForms version 0.1

[Mads <mad...@ya...>]

Hi

In this email:
http://sourceforge.net/mailarchive/message.php?msg_id=3D12457335, I have
previously announces a library for easily creating GUI forms. Now the
first "real" version is available and I have made a homepage about the
project, see http://autoforms.sourceforge.net/ .

_About AutoForms_

AutoForms is a library to easily create forms. You just need to specify
the data you want in the form (+ a little boilerplate code). You specify
the data using ordinary Haskell data declarations. Hereafter the library
takes over and does the layout and figures out which widgets to use.

The library is still in an early stage and therefore often produces
quite ugly forms. However, this is expected to improve in the future.


Mads Lindstr=F8m

[wxhaskell-users] ListCtrl items Bug

[<hol...@ic...>]

Hi all,

I realized that the Items instance definition for listCtrl does not work 
in wxHaskell (V0.9). Doing

  lc <- listCtrl f [items := ...]
  get lc items

always yields a list of empty strings! I found out that in the 
implementation (in WX/Controls.hs) in the getter function for item the 
following line is missing for items to work correctly:

  listItemSetMask   li wxLIST_MASK_TEXT

Best regards,
Bernd

-- 
Bernd Holzmüller
Dipl.-Inf.

ICS AG
Sonnenbergstraße 13
D-70184 Stuttgart
Tel.: +49 (0) 711 / 2 10 37 - 643
Fax:  +49 (0) 711 / 2 10 37 - 653
Mobile: +49 (0) 151 / 17449 534
mailto:hol...@ic...
www.ics-ag.de

[wxhaskell-users] error msg when opening fileopendialog

[<pk...@st...>]

Hi,

i get an error message (the same twice) in my terminal when opening a
fileopendialog (fileOpenDialog) under linux (fedora core 3). Everything
works fine, but it would be nice to avoid it of course. Is there a way to
solve or avoid this?

Peter

error (2x):
Gdk-CRITICAL **: file gdkwindow.c: line 1390 (gdk_window_get_size):
assertion `window !=3D NULL' failed.

(in ghci as well as ghc)

maybe a related issue:
http://caml.inria.fr/pub/ml-archives/ocaml-beginners/2003/06/d3f2a3dd3399=
b1ac11351439adc544e4.en.html

Re: [wxhaskell-users] Re: unicode support

[Eric Y. K. <Eri...@lo...>]

Hi again,

Attached is the next version (04) of the patch.  It fixes compile issues
on Linux.

Now the Unicode patch has been tested and seems to work on both 
Mac and Linux.  

Could somebody give it a try on Windows?

(Note: this patch was motivated by attempts to compile wxhaskell on
 OS X Tiger, which includes WxWidgets, but with --enable-unicode)

-- 
Eric Kow                     http://www.loria.fr/~kow
PGP Key ID: 08AC04F9         Merci de corriger mon français.

Re: [wxhaskell-users] Re: unicode support

[Eric Y. K. <Eri...@lo...>]

Dear list,

Attached is the latest version of my wxhaskell Unicode patch.  

Compared to previous patches, it has fewer memcpy errors.  I have tested
it against the latest CVS code, and it seems to work.

Cheers,

-- 
Eric Kow                     http://www.loria.fr/~kow
PGP Key ID: 08AC04F9         Merci de corriger mon français.

[wxhaskell-users] Can't compile wxHaskell with ghc 6.4 on Linux

[Ryszard K. <ry...@bi...>]

Hello All!

I don't know if anyone of you has experienced problems
similar to my ones with the compilation of wxhaskell-src-0.9.4-1.
On my RedHat 9 Linux machine, with freshly installed
wxGTK-2.6.1 and ghc-6.4, a compilation fails generating
a log info as quoted below.

I'm going to try a binary rpm instead, still I am interested
if I've done anything wrong.

Greetings
Ryszard Kubiak

=====================================================

configure's log:

checking system:
  wx-config found
  ghc found
  ghc-pkg found
  haddock found
  install program found

creating configuration files:
  config
  config/config.mk
  config/wxcore.pkg
  config/wx.pkg
  config/wxhaskell-register.bat
  config/wxhaskell-unregister.bat
  config/setcd
  config/macosx-install.info
  config/macosx-postinstall
  config/macosx-app
  config/wxhaskell.spec
  config/prologue.txt
  config/cache.txt

configuration:
  library:     wxhaskell-0.9.4  (release 0)
  compiler:    ghc-6.4
  wxwidgets:   gtk-2.6.1
  with openGL: no
  library dir: /usr/local/lib

done:
  type 'make' to build wxhaskell.
  type 'make install' to install wxhaskell.
  type 'make help' to receive help on all other make targets

==========================================================

make's log:

[~/Haskell/wxhaskell-0.9.4]$ make
g++ -c wxc/src/ewxw_main.cpp -o out/wxc/ewxw_main.o -MD -I/usr/local
/lib/wx/include/gtk2-ansi-release-2.6 -I/usr/local/include/wx-2.6 -D
GTK_NO_CHECK_CASTS -D__WXGTK__ -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES
  -D_LARGEFILE_SOURCE=1   -Iwxc/include
In file included from /usr/local/include/wx-2.6/wx/db.h:76,
                  from wxc/src/ewxw_main.cpp:4:
/usr/local/include/wx-2.6/wx/isql.h:47:1: warning: "EXPORT" redefine
d
In file included from wxc/include/wrapper.h:7,
                  from wxc/src/ewxw_main.cpp:1:
wxc/include/ewxw_def.h:4:1: warning: this is the location of the pre
vious definition
g++ -c wxc/src/extra.cpp -o out/wxc/extra.o -MD -I/usr/local/lib/wx/
include/gtk2-ansi-release-2.6 -I/usr/local/include/wx-2.6 -DGTK_NO_C
HECK_CASTS -D__WXGTK__ -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -D_LARG
EFILE_SOURCE=1   -Iwxc/include
g++ -c wxc/src/wrapper.cpp -o out/wxc/wrapper.o -MD -I/usr/local/lib
/wx/include/gtk2-ansi-release-2.6 -I/usr/local/include/wx-2.6 -DGTK_
NO_CHECK_CASTS -D__WXGTK__ -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -D_
LARGEFILE_SOURCE=1   -Iwxc/include
wxc/src/wrapper.cpp: In function `void ELJApp_USleep(int)':
wxc/src/wrapper.cpp:537: warning: `wxUsleep' is deprecated (declared
  at
    /usr/local/include/wx-2.6/wx/utils.h:312)
g++ -c wxc/src/eljevent.cpp -o out/wxc/eljevent.o -MD -I/usr/local/l
ib/wx/include/gtk2-ansi-release-2.6 -I/usr/local/include/wx-2.6 -DGT
K_NO_CHECK_CASTS -D__WXGTK__ -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -
D_LARGEFILE_SOURCE=1   -Iwxc/include
g++ -c wxc/src/eljmime.cpp -o out/wxc/eljmime.o -MD -I/usr/local/lib
/wx/include/gtk2-ansi-release-2.6 -I/usr/local/include/wx-2.6 -DGTK_
NO_CHECK_CASTS -D__WXGTK__ -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -D_
LARGEFILE_SOURCE=1   -Iwxc/include
g++ -c wxc/src/treectrl.cpp -o out/wxc/treectrl.o -MD -I/usr/local/l
ib/wx/include/gtk2-ansi-release-2.6 -I/usr/local/include/wx-2.6 -DGT
K_NO_CHECK_CASTS -D__WXGTK__ -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -
D_LARGEFILE_SOURCE=1   -Iwxc/include
wxc/src/treectrl.cpp: In function `void wxTreeCtrl_GetFirstChild(voi
d*, void*,
    void*, void*)':
wxc/src/treectrl.cpp:333: warning: `GetFirstChild' is deprecated (de
clared at
    /usr/local/include/wx-2.6/wx/generic/treectlg.h:372)
g++ -c wxc/src/image.cpp -o out/wxc/image.o -MD -I/usr/local/lib/wx/
include/gtk2-ansi-release-2.6 -I/usr/local/include/wx-2.6 -DGTK_NO_C
HECK_CASTS -D__WXGTK__ -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -D_LARG
EFILE_SOURCE=1   -Iwxc/include
wxc/src/image.cpp:124:2: warning: no newline at end of file
g++ -c wxc/src/apppath.cpp -o out/wxc/apppath.o -MD -I/usr/local/lib
/wx/include/gtk2-ansi-release-2.6 -I/usr/local/include/wx-2.6 -DGTK_
NO_CHECK_CASTS -D__WXGTK__ -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -D_
LARGEFILE_SOURCE=1   -Iwxc/include
wxc/src/apppath.cpp:114:2: warning: no newline at end of file
g++ -c wxc/src/db.cpp -o out/wxc/db.o -MD -I/usr/local/lib/wx/includ
e/gtk2-ansi-release-2.6 -I/usr/local/include/wx-2.6 -DGTK_NO_CHECK_C 
                     ASTS -D__WXGTK__ -D_FILE_OFFSET_BITS=64 
-D_LARGE_FILES -D_LARGEFILE_                        SOURCE=1   -Iwxc/include
In file included from /usr/local/include/wx-2.6/wx/db.h:76,
                  from wxc/src/db.cpp:4:
/usr/local/include/wx-2.6/wx/isql.h:47:1: warning: "EXPORT" redefine 
                     d
In file included from wxc/include/wrapper.h:7,
                  from wxc/src/db.cpp:1:
wxc/include/ewxw_def.h:4:1: warning: this is the location of the pre 
                     vious definition
wxc/src/db.cpp: In function `int wxDbColInf_GetColumnSize(wxDbColInf 
                     *)':
wxc/src/db.cpp:1035: `class wxDbColInf' has no member named `columnS 
                     ize'
wxc/src/db.cpp: In function `int wxDbColInf_GetBufferLength(wxDbColI 
                     nf*)':
wxc/src/db.cpp:1044: `class wxDbColInf' has no member named `bufferL 
                     ength'
wxc/src/db.cpp: In function `wxDbColInf* wxDb_GetResultColumns(wxDb* 
                     , int*)':
wxc/src/db.cpp:1158: `class wxDbColInf' has no member named `columnS 
                     ize'
make: *** [out/wxc/db.o] Error 1

Re: [wxhaskell-users] WxHaskell segfault on Debian Sarge

[Simon G. <si...@gu...>]

At Thu, 21 Jul 2005 14:18:40 +0100,
Simon Guest wrote:
> I've used WxHaskell 0.8 successfully for a while now, both on Windows
> and Debian unstable.  However, I'm now trying to use it on Debian
> sarge, and experiencing Gtk and Glib critical failures, and segfaults
> upon starting the program in GHCI.

Apparently no-one else has experienced this.  Having had another look
at it, I found my problem was I was running a mixture of Sarge and
Sid (doh!).  The key information was provided by apt-show-versions.

After correctly downgrading to Sarge, everything is now working nicely.

cheers,
Simon

PS: Never underestimate the effectiveness of a long holiday on
increasing one's problem solving ability.

[wxhaskell-users] Toolbar on Windows and wxBITMAP_STD_COLOURS

[Toby A. <to...@mi...>]

For me, at least, running a wxHaskell application that has a toolbar
on windows results in a dialog complaining that it can't find the
resource wxBITMAP_STD_COLOURS.  The app then appears to function
correctly, but the dialog is annoying.

Windows 98
wxWindows 2.4.2
wxHaskell 0.9.4-1
GHC 6.4.1.mumble
MinGW 4.1
MSYS 1.0.10

The problem seems to be that the standard wxWindows resources are not
being linked to the application.  I see there is a wxc.rc file in the
wxHaskell source that includes the standard wx.rc resource file, but
that this is never compiled or linked.

Attached is a patch to 0.9.4-1 that compiles wxc.rc and arranges for
it to be linked to wxHaskell executables (if the toolkit is msw).

This is achieved by compiling wxc.rc with windres to wxc-rc.o,
installing this object file into the lib dir and adding it to the
extra-ld-opts field of the package description (which needs to be
called ld-options for GHC 6.4 and greater).

It doesn't seem to work to include the wxc-rc.o file in either the DLL
or the .a for some reason, which is why I added it to the ld-options
field.

Regards,
Toby.

[wxhaskell-users] Re: unicode support - work with me?

[Eric Y. K. <Eri...@lo...>]

Hi again list,

Here is a revised patch for wxhaskell in unicode.
Please disregard the previous message.
 (moderator: if you see this, please kill the first message).

I have finally gotten wxhaskell working with Unicode.
You can see a screenshot of a sample application here:
http://photos1.blogger.com/blogger/5532/1215/1600/unicode_wxhaskell.jpg

Please try the following patch (-p1) out.  

Notes:
1. You'll need to compile wxWidgets with --enable-unicode
   (or at least, without --disable-unicode?)
2. On MacOS X Tiger, I need to gcc_select 3.3 for it not 
   to give weird errors.  Not yet tested on other operating 
   systems.
3. I don't actually know anything about programming in C,
   using the FFI, or that much about wxWidgets either, so
   buyer beware


-- 
Eric Kow                     http://www.loria.fr/~kow
PGP Key ID: 08AC04F9         Merci de corriger mon français.

[wxhaskell-users] unicode support - work with me?

[Eric Y. K. <Eri...@lo...>]

Hi list,

I have been working on getting Unicode support to work in wxhaskell.

Progress so far is that the Minimal.hs example runs, but the Control.hs
example segfaults.

Would anybody be interested in working with me on this?  We could 
conceivably create a darcs repository or something.

I attach the patch (-p1) that brings us up to the current state.

Note: on Tiger, you have to do gcc_select 3.3 for things to work
properly.  

-- 
Eric Kow                     http://www.loria.fr/~kow
PGP Key ID: 08AC04F9         Merci de corriger mon français.

[wxhaskell-users] RE: wxC questions

[<EFu...@ne...>]

Hello, 
Please ignore my earlier questions, I found the solution.
I am sorry for being impatient and creating unnecessary noise in the
mailing list.

Regards,
-- 
Surendra Singhi

http://www.public.asu.edu/~sksinghi/index.html


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Re: [wxhaskell-users] toolbar

[Arjan v. I. <af...@cs...>]

Hi,

> is there a possibility to make the toolbar vertical?

I think so. In wxWidgets there is a constant wxTB_VERTICAL.
I can't find it in wxHaskell, but if you would know what number it  
stands for you might be able to write
     [ style :~ \s -> s .+. n ]    (where n is the number)

Ah, Google to the rescue!

    wxTB_VERTICAL = 8

According to http://wxappbar.sourceforge.net/pydoc/wxoo.windowdrag.html

So:

    tbar <- toolBar f [ style :~ \s -> s .+. 8 ]

This code is untested by the way; I hope it works.

Cheers, Arjan

[wxhaskell-users] why no unicode support?

[Eric Y. K. <Eri...@lo...>]

Hi list,

I would like to make wxhaskell work with Unicode. =20

The problem is that I am not really a C++ hacker, so I don't actually
know what I'm getting myself into.  Could somebody tell me if there's a
deep reason why wxhaskell does not support Unicode?  That is, am I in
over my head?

I'm currently working with this page from the manual, dumbly converting
chars to wxChar and wrapping string literals with wxT():
 http://www.wxwidgets.org/manuals/2.6.0/wx_unicode.html

Thanks,

--eric

P.S. I am doing this mainly because I want to get wxhaskell to compile
     against the wxWidgets that ships with MacOS X (Tiger), so that I
     can write darwinports Portfile for it.   Any help on that
     appreciated too.

--=20
Eric Kow                     http://www.loria.fr/~kow
PGP Key ID: 08AC04F9         Merci de corriger mon fran=E7ais.

[wxhaskell-users] Re: wxC questions

[<EFu...@ne...>]

Hello Daan,
 Thanks for your help. I was indeed making mistake in the function calling 
convention, once I fixed that, I was able to use many functions without 
lisp terminating abruptly.

But, another problem which I am still facing is that I am still not able to
create frames. As you suggested, I tried writing a C++ program, but even 
that doesn't work.

I am attaching the c++ program (its pretty short) and the wxHaskell dll 
file which I am using can be downloaded from 

http://cvs.sourceforge.net/viewcvs.py/*checkout*/wxcl/miscellaneous/wxc-msw2.4.2-0.9.4.dll

If you get time then please look into it. And point out, if I am making any
mistake.

Thanks for your time. I really appreciate your help.

P.S.- Do you want me to CC you when I send the emails? 
-- 
Surendra Singhi

http://www.public.asu.edu/~sksinghi/index.htm


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[wxhaskell-users] Re: wxC questions, hugs, Gmane

[<EFu...@ne...>]

Hello Daan,
  Thanks for your help. I was indeed making mistake in the function calling convention, once I fixed that, I was able to use many functions without lisp terminating abruptly.
 
But, another problem which I am still facing is that I am still not ablr to create frames. As you suggested, I tried writing a C++ program, but even that doesn't work.

I am attaching the c++ program (its pretty short) and the wxHaskell dll file which I am using.

If you get time then please look into it. And point out, if I am making any mistake.

Thanks for your time. I really appreciate your help. 

P.S.- Do you want me to CC you when I send the emails? 
-- 
Surendra Singhi

http://www.public.asu.edu/~sksinghi/index.htm


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[wxhaskell-users] toolbar

[Moritz v. K. <mvk...@go...>]

Hi,

is there a possibility to make the toolbar vertical?

MvK

[wxhaskell-users] Generic GUI forms, using wxHaskell and scrap your boilerplate ...

[Mads <mad...@ya...>]

Hi

Inspired by FunctionalForms [1] and the scrap your boilerplate papers
[2], I have made a function which only needs an existing window and an
instantiated type as input to create a GUI form. However, this is just
an early prototype and needs a lot more work to become truly useful.

The function, mentioned above, has the following signature:

  genericDialog :: (Data a) =3D> Window w -> a -> IO (Maybe a)

As a short example:

  data SimplePerson =3D SimplePerson { name :: String, age :: Int }
                      deriving (Show, Typeable, Data)

  main =3D start $
      do w <- frame [text :=3D "Generic forms!"]
         genericDialog w (SimplePerson "Some name" 117)

which will create a dialog, where the user can set the name and age of a
SimplePerson. Depending on user input, the function returns either
Nothing or a SimplePerson with possibly changed fields. A larger example
are in one of the two attached files. The other file contains the source
code for the library.

As mentioned above, this is just an early prototype and therefore a lot
of features are missing. It is currently not usable for a production
system. And it may never be possible to create forms in this way, and
still be useful in a production system. However, with further
development I believe this kind of library, should at least be able to
speed up prototyping GUI applications.

This library was tested on Debian stable (with some package from
unstable). I am using GHC 6.4 and wxHaskell 0.9.4.1. The library will
_not_ compile on GHC 6.2 or older.

The library can be compiled with:

  ghc --make -package wx -fglasgow-exts AFPerson.hs


Greetings,

Mads Lindstr=F8m

[1] http://www.sandr.dds.nl/FunctionalForms/index.html
[2] http://www.cs.vu.nl/boilerplate/

Re: [wxhaskell-users] RE: wxC questions, hugs, Gmane

[Daan L. <da...@cs...>]

Dear Surendra,

> Thanks for the help once again. I am now able to use some of the baseic functionalities, of wxC from lisp, but I am running into two issues.
> 
> 1. In my initialization function, I am not registering for any events, and I am running just few basic bitmap related functions, they all work fine. But when the initialization function finishes, my lisp ends unceremoniously , is this due to the code?
> " return wxApp::OnExit();"  
> 
> Does it causes the lisp to terminate? How can I avoid this problem? 

No, in principle the function would just return immediately.

> 
> 2. When I try to just create a frame in init function, (again without registering for any events), the lisp connection dies midway. Am I doing anything wrong here? 
> 

This is not the correct behaviour :-) The most obvious issue is related to static 
intializer in the wxWidgets library. First of all, execute the lisp code from a 
compiled program and see what happens.

-- Daan

(explanation: the wxWidgets library initializes static variables at dll load time
and doesn't reset them properly after OnExit. This means that an interpreter could
only use the main loop once -- the next time it would find the static variables
in an inconsistent state.)

> Thanks for your time and answer.

[wxhaskell-users] RE: wxC questions, hugs, Gmane

[<EFu...@ne...>]

Hello,

"Daan Leijen" <t-...@mi...> wrote:
> This function expects a
>"wxClosure" as an argument. These "wxClosure"'s are the way to connect
>Common Lisp to the wx world. WxWidget events will call back on
>wxClosure's into the Lisp world. 
> When an object is destroyed, it calls on its
>listening wxClosures with a NULL event object. This also happens for the
>closure that you pass to "ELJAPP_initializeC" -- ie. you would call the
>initalize function with a closure this is only fired once with a NULL
>event -- and you use this to run the LISP initialization that will
>create windows etc. and install further event handlers on the frames.
>This means that you hand over control to wxWidgets -- only being in LISP
>land when an event is triggered.  

Thanks for the help once again. I am now able to use some of the baseic functionalities, of wxC from lisp, but I am running into two issues.

1. In my initialization function, I am not registering for any events, and I am running just few basic bitmap related functions, they all work fine. But when the initialization function finishes, my lisp ends unceremoniously , is this due to the code?
" return wxApp::OnExit();"  

Does it causes the lisp to terminate? How can I avoid this problem? 

2. When I try to just create a frame in init function, (again without registering for any events), the lisp connection dies midway. Am I doing anything wrong here? 

Thanks for your time and answer.
-- 
Surendra Singhi

http://www.public.asu.edu/~sksinghi/index.htm


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