Dylib problem

Member

Posts: 20
Joined: 2010.09

Post: #1

Apr 20, 2011 — 02:09 PM

Hi everyone,

While trying to get a simple dylib that fetches the resolution of Macintosh computers to work, I get this little error. There doesn't seem to be anything wrong with the code, but then again I'm quite new to C so I can't be sure what's wrong with what.

Code:

#include <stdio.h>

#include <stdlib.h>

#include <ApplicationServices/ApplicationServices.h>

extern "C" {

__attribute__((visibility("default"))) double GetPixelsWide( double _var );

double 

GetPixelsWide( double _bar )

    {

        //Get display width...

        double returnvar;

        //uint32_t ioflags;

        returnvar=CGDisplayPixelsWide(kCGDirectMainDisplay);

        return returnvar;

    } 

}

The error(s, 2) I get is:

Quote: "_CGDisplayPixelsWide", referenced from:

"_CGMainDisplayID", referenced from:
_GetPixelsWide in gethome.o
ld: symbol(s) not found
collect2: ld returned 1 exit status

Any help? I can't reroute this to the main application's code... it must be in a dylib.

Vetra Games: http://www.vetragames.com
My Blog: http://www.vetragames.com/blog/
Twitter: http://www.twitter.com/ugriffin

OneSadCookie

Luminary

Posts: 5,125
Joined: 2002.04

Post: #2

Apr 20, 2011 — 02:56 PM

You need to link to the ApplicationServices framework you included.

ugriffin

Member

Posts: 20
Joined: 2010.09

Post: #3

Apr 20, 2011 — 05:28 PM

Ahhh... my noobness shows up... and beautifully this time.

But your fixed worked beautifully. Thanks a lot.

Vetra Games: http://www.vetragames.com
My Blog: http://www.vetragames.com/blog/
Twitter: http://www.twitter.com/ugriffin

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