OpenEuphoria

Re: Wrapping Win32 stuff

• Posted by Ted Fines <fines at macalester.edu> Apr 23, 2001
• 396 views

Travis,

Thank you for pointing out my typos.  Careless.  Don't be concerned about 
having to get me away from C!  That foul language is what turned me off of 
programming in the first place.  So unnecessarily cryptic.  Euphoria is my 
first choice for any project.

Nonetheless, I do want to get into wrapping some C functions, so I can add 
to the libraries and improve the robustness of Euphoria.  I thought I'd 
start by taking a simple C program and converting it...

I still couldn't get my fileio.c to compile in the IDE.  It didn't just 
seem to have a way to load a .C file, and compile it.  It had to make a 
project file and add some additional files and a form for a UI, none of 
which I wanted.  The whole thing reminded me of MS FrontPage.  That program 
is just too overblown to just go in and make a single, simple web page... 
But I digress.

So I opened up a command line, and found that "bcc32 -tW fileio.c" got it 
compiled and working perfectly.  On to the wrapping part!

--Ted

--On Sunday, April 22, 2001 11:35 PM -0500 Travis Beaty 
<travisbeaty at arn.net> wrote:

>
>
> Hello Mr. Fines
>
>
> Ted Fines wrote:
>
>> My C abilities are pretty low.  Well, below pretty low, actually.  The
>> program just runs (supposedly) then quits. I'm using Borland's C++
>> Builder 5.  No errors are reported.  No messages of any kind.  Yet the
>> code is supposed to display a series of message boxes.  Any help?
>> Attached is the code.  I have a feeling the code is the function, but
>> the actual calling of the function doesn't happen, and I don't know how
>> to do it.
>>
>> Thanks,
>> Ted
>>
>
> Well, congratulations.  C has bitten you in the butt.  I've been there.
> That's why I'm such an Eu fanatic.
>
> You had a couple of typos in your code that you probably didn't notice
> since you're not real familiar with Windows API calls in C.  First of
> all, remember that C, like Euphoria, is case sensitive -- it will not
> consider foo() and Foo() to be the same function.
>
> On line 51, ShowWIndow(hwnd,nWinMode); should read:  ShowWindow(hwnd,
> nWinMode); On line 57, TranhslateMessage(&msg); should read:
> TranslateMessage(&msg); On line 75, getCurrentDirectory(sizeof(buf),buf);
> should read:
> GetCurrentDirectory(sizeof(buf), buf);
>
> Make these changes, and your program will work correctly.
>
> This, Mr. Fines, is one of the **major** strengths that Euphoria has over
> C.  If you type in a C function which it doesn't know about, such as
> getCurrentDirectory(), it quietly assumes that you'll introduce it later,
> and goes on faith that it exists.  If you set the compiler correctly, it
> will warn you that you haven't declared it (aka. "this function has no
> prototype," or something like that), but it will still compile and link
> it.  When you run the program, C then idiotically calls a function which
> doesn't exist, and the program goes "kaboom."
>
> Euphoria, on the other hand, will see that getCurrentDirectory() doesn't
> exist, and will stop right then and there, which saves the programmer
> from the trouble, worry, and six packages of antacid as he wonders why
> the heck the good code is being bad.
>
> Also, notice that your program was flawed, but the compiler said nothing.
> The compiled program just said to itself  "Aw hell," and vanished.
<snip>

>
>