Trouble with compiling/linking

mikhail · #1 25-Jun-2004, 12:58

Hi all,

Trying to use the http://www.hal9k.com/cug/links/subject73.htm here (near the bottom of the list), but I'm having some problems getting it to link. I've copied part of an old BGI program of mine, and I'm trying to get that much to work. Here's the basic code:

CPP / C++ / C Code:

#include <windows.h>
#include <stddef.h>
#include <stdio.h>
#include <math.h>

#include "graphics.h"

void main(void)
{
	/* request autodetection */
   int gdriver = DETECT, gmode, errorcode;
   int maxx, maxy;

   /* initialize graphics and local variables */
   initgraph(&gdriver, &gmode, "");

   /* read result of initialization */
   errorcode = graphresult();
   if (errorcode != grOk) {  /* an error occurred */
      printf("Graphics error: %s\n", grapherrormsg(errorcode));

      printf("Press any key to halt:");
      getch();
      exit(1);               /* terminate with an error code */
   }

   maxx = getmaxx();
   maxy = getmaxy();

   setbkcolor(BLACK);
   setcolor(WHITE);


   //Draw a dot
   outtextxy(maxx/2, maxy/2, ".");
   getch();
   clearviewport();

   closegraph();
}

I've got the winbgi graphics header and library files included as sub-nodes on the project window.

The problem is this:
I can compile the whole thing, but when I run it, I get an error message about "using a dummy version of OwlMain"
I tried downloading owl52f.dll (the right one, I'm sure), but that's not the problem.

Googling the problem turned up a lot of help, but most of it seems to be to change the targetexpert selection to "win32\console\owl". When I do that, or small variations (eg, leaving out the OWL check, or selecting GUI instead of console), I get linker errors about "Unresolved external '_main' referenced from <path>\C0X32.OBJ". Using main(), owlmain(), and winmain() as my main function name all seem to cause different (or the same) problems.

All of the help I've googled suggests changing the same settings back to what someone else has said is wrong (and which also isn't working for me).

Can anyone help?

Many thanks,
Mikhail

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