Re: [Dev-C++] What have I done this time? A wxDevC++ adventure.

[Malcolm N. <m.n...@wa...>]

Hello Roger,

On 04 December 2004, 02:30:28, you wrote:

>  =A0Aloha from Honolulu,
>  =A0=A0 I started doing a tutorial I found on the wxWidgets site under Do=
cumentation: A
>  comprehensive wxWidgets tutorial by David Beech.=A0 There isn't much to =
it.=A0 I copied the
>  code and pressed Compile & Run...
>  =A0=A0 The first time (I had pre-compiled headers)

And how did you get them into wxDevCpp? wxDevCpp uses an older version
of the gcc compiler which doesn't support precompiled headers. Perhaps
the next distribution will support it, but beta 6.4 doesn't (if it
does and I am wrong here then I would love to know how you got them in
there.

> it came back with an error message: could
>  not find /wx/msw/hand.cur.=A0 I got upset.=A0 I mean=96I can find that f=
ile!=A0 What's going on?

What is probably going on is that you created a new project (or
perhaps didn't even do that) without choosing one of the preset
wxWidget projects which should have the correct paths set up.

When working with wxDevCpp for working with tutorials I have found, I
create an empty wxWidgets template. Basically File - New - Project -
wxWidgets Frame. Chose a location for the files, then once the project
is open in the ide, in the properties bar, right click on every file
there and choose -remove file- and dont save the file contents. Then
once you have the project empty (perhaps you might want to keep the
.rc file - I don't) choose File - New - Template file in the dialog
and save.

Then add your files for the project (in your case you would create two
new files one named basic.h the other basic.cpp, copy the text from
the example into the respective windows. Save all, (I close the
project then reopen it - allowing the ide to parse the files to create
the class browser window contents), then press F9 it compiles and
runs.


>  =A0=A0 I remembered about not using copy and paste, because of unprintab=
le characters.
>  Aha!=A0 I erased the files in my tutorial/basic01 directory and typed th=
em in again by
>  hand.

I used copy/paste and it still compiles correctly. It may of course
that you inadvertantly copied text other than the program code, it is
very easy to do when working from multi column web pages.


>  =A0=A0 As I'm typing away I start getting the "Code Completion" feature =
horning in, but I can't
>  do anything with it.=A0 I looked it up in Help, but it has yet to be imp=
lemented.=A0 So I bang
>  my head a few times

Been there, done that, bought the paracetamol.

> and eventually get it disabled.=A0 Now can get the typing done.=A0 I
>  save the basic.c file.=A0 Type the basic.h & basic.rc files.=A0 Attach t=
hem all to a project
>  basic01.dev file.=A0 Save the project and close everything.

Check out my comment above.

>  =A0=A0 Then I open the basic01.dev project.=A0 I click on the c-source f=
ile (basic.c) and I
>  noticed at the lower left bottom of the window the word "Parsing:' follo=
wed by an ever
>  changing bunch of messages.=A0 This is all happening before I'm able to =
do anything to
>  the file I just opened.=A0 It goes on and on.=A0

It does indeed go on and on, but leave it alone and it will stop
eventually. I have seen this take from several seconds (the code from
the example you quote actually took 0.9 seconds, but I have had it
parse the files for up to two minutes)


> I click on the close-window X top screen right,
>  but nothing happens except (Not Responding) appears in the window title =
bar.=A0 So I do
>  Control/Alt/Delete and exit the program.

Not needed, so long as the text in the status bar is being updated,
then the program is simply busy.

>  =A0=A0 I try the whole thing again with the same result.=A0 Then I unins=
tall wxDevC++ and do a
>  brand new install.=A0 Things go OK, but it doesn't ask if I want to prec=
ompile the headers.

This isn't what it asks, it asks for the class browser code completion
features. Something totally different to precompiled headers.

>  I open my basic01.dev project and click the basic.c file.=A0 It goes on =
OK.=A0 I hit Compile &
>  Run and it begins compiling.=A0 It goes on and on.=A0 I've decided to ou=
t wait it.=A0 I go to the
>  bathroom, get a cup of coffee.=A0 Walk out to the street and collect the=
 mail.=A0 Put my
>  laundry in the washer...etc.=A0 An hour later I come back.=A0 It has the=
 file "String.h" open
>  and lists something like 497 errors followed by: too many errors abortin=
g.
>  =A0=A0 I'm now ready to scream at anyone--someone please let me scream a=
t you!!!=A0

Hell if you want to scream at me GO AHEAD, my wife does it all the
time, i guess i'm immune, I KNOW I'm deaf.

> But of
>  course no one else is around, so I once again uninstall the wxDevC++ pro=
gram.=A0

Would you elaborate how you uninstalled the program? You must also
remove the devcpp.cfg and devcpp.ini files from your computer (they
are hidden somewhere, documents and settings somewhere) and for totall
safety delete the devcpp directory too (I always have my projects
under a seperate folder c:\Projects so that I can always delete the
devcpp directory without losing anything important)

> This
>  time I turn the machine off and let it sit before powering it back on.=
=A0 Then I reinstall
>  wxDevC++.=A0 Again it doesn't ask about precompiling headers.=A0 Again I=
 open basic.c
>  and again it starts Parsing the file before I can do anything else.=A0 A=
fter it finishes I close
>  the project and try opening an earlier one.=A0 This goes
> normally.=A0 So I don't know what to
>  make of it.
>  =A0=A0 My first question is: how do I precompile the headers?

At the moment it means you have to install a newer version of GCC. I
believe that you are being confused between precompiling headers and
Class Completion.

>  =A0=A0 Second question is : does anybody else have a similar experience =
with this code?

No, and just to show you, here is my code, copied and pasted from the
webpage  into wxDevCpp and now from wxDevCpp into this mailing.


//basic.h
#ifndef BASIC_H
#define BASIC_H

class BasicApplication : public wxApp
{
  public:
virtual bool OnInit();
};

class BasicFrame : public wxFrame
{
  public:
BasicFrame( const wxChar *title,=20
                int xpos, int ypos,=20
                int width, int height);
~BasicFrame();

};
#endif

//basic.cpp
#include <wx/wx.h>
#include "basic.h"

IMPLEMENT_APP(BasicApplication)

bool BasicApplication::OnInit()
{
  BasicFrame
   *frame =3D new BasicFrame("Basic", 50, 50, 450, 300);

  frame->Show(TRUE);
  SetTopWindow(frame);
  return TRUE;
}

BasicFrame::BasicFrame
             (const wxChar *title,
                    int xpos, int ypos,
                    int width, int height)
             : wxFrame
                ( (wxFrame *) NULL,
                   -1,
                   title,
                   wxPoint(xpos, ypos),
                   wxSize(width, height)
                )
{

}

BasicFrame::~BasicFrame()
{

}

I did notice that your copied text begins

*/
The source code for the first example is shown below.
*/

If that is correct it SHOULD be :

/*
The source code for the first example is shown below.
*/

And that could explain why you have so many errors.

Since these are questions related to wxDevCpp and not just DevCpp with
respect to a DevPak I would suggest you take a look at the wxWidgets
Forum http://www.solidsteel.nl/users/wxwidgets/index.php under the
Compiler/IDE section (I frequent the forum too) and place your
questions there, I could understand it if the pure DevCpp users get a
little steamed about this (wxDevCpp) topic, since often questions
related to wxDevCpp are totally seperate to those for DevCpp.


--=20
Best regards,
Malcolm                            mailto:m.n...@wa...