Stretch fullscreen over 2 displays

hi

i am on osx 10.8.5 and 10.9 with 2 monitors.
my app goes fullscreen but does not stretch over the 2nd display.
i am using OF 0.8.4.

i am using this in main()
ofSetupOpenGL(1024,768,OF_FULLSCREEN);

i check the form but did not really find a solution.

thanks,
stephan

  1. system setup: http://www.imore.com/how-span-window-between-two-displays-mavericks
  2. app setup: Fullscreen dual screen

#include “ofMain.h”
#include “ofApp.h”
#include “ofAppGLFWWindow.h”

//========================================================================
int main( ){
//ofSetupOpenGL(1024,768,OF_WINDOW); // <-------- setup the GL context

// this kicks off the running of my app
// can be OF_WINDOW or OF_FULLSCREEN
// pass in width and height too:

// ofRunApp(new ofApp());

ofAppGLFWWindow window;
window.setMultiDisplayFullscreen(true);
ofSetupOpenGL(&window,1024,768,OF_FULLSCREEN);
ofRunApp(new ofApp);

}