RE: [Dev-C++] what is a resource? how do I create my own headers ?

[James G. <Jam...@Cl...>]

A resource file as a Windows text file that contains information about
menus, dialogs, icons, accelerators etc and is normally in a .rc file.

As to the other question.

Create a header to declare your function e.g.

myfunc.h
~~~~~~~~
#ifndef MY_FUNC_H
#define MY_FUNC_H

#ifndef SOURCE_COMPILE
#define EXTERN_ extern
#else
#define EXTERN_
#endif

/* Function func1 prototype */
EXTERN_ int func1(int anumber);

#endif

myfunc.c
~~~~~~~~
#include <stdio.h>
#define SOURCE_COMPILE
#include "func.h"

EXTERN_ int func1(int anumber)
{
return (anumber * 1000);
}

test.c
~~~~~~
#include <stdio.h>
#include "func.h"

int main()
{
 return func1(1000);
}

You would normally do one of two things.

1. If the function is to be used in a number of different projects then
creating a library (.lib or .a or .so file) that can be used in other
projects by linking the file using the -l<libname> option.

2. In the makefile specify that you need myfunc.o (which is the intermediate
file from compiling with cc -c myfunc.c).

e.g. cc test.c -o mytest func.o

With MSVC try the following

cl -c func.c
cl test.c func.obj

Regards,

James.


-----Original Message-----
From: Alan Thomas [mailto:ala...@3n...]
Sent: Thursday, January 04, 2001 1:46 AM
To: dev...@li...
Subject: [Dev-C++] what is a resource? how do I create my own headers?
Importance: High


Two questions:

(a)  What is a "resource" file?  Is it relevant for a [DOS] console program?
Where is it documented what to do with a resource file?

            I created a new project (console application) and added three
existing files (two cpp{one with a main function, another with other
functions} and one header file.  Asked it to Compile the project, but it
gave me an error with the resources ("no resources").  Tried again with a
new, empty project.  Added files but got same error when I attempted to
compile.

(b)  How do I save/use a header file?

         I have some functions.  Wrote and tested them.  Took the function
prototypes and #includes, and made them the header file.  Included it
(#include "html.h") in my file with the main function.  Took the rest ---
the function definitions --- and made them the .cpp file.  Is this the way
you use a header file?

        Where is this documented or described?

Thanks, Alan




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