Something

#include "ExampleApplication.h"

class TutorialApplication : public ExampleApplication
{
protected:
public:
    TutorialApplication()
    {
    }

    ~TutorialApplication() 
    {
    }
protected:
    void createScene(void)
    {
		mSceneMgr->setAmbientLight( ColourValue( 1, 1, 1 ) );

		Entity *ent1 = mSceneMgr->createEntity( "Robot", "robot.mesh" );
		SceneNode *node1 = mSceneMgr->getRootSceneNode()->createChildSceneNode( "RobotNode" );
		node1->attachObject( ent1 );

		Entity *ent2 = mSceneMgr->createEntity( "Robot2", "robot.mesh" );
        SceneNode *node2 = mSceneMgr->getRootSceneNode()->createChildSceneNode( "RobotNode2", Vector3( 50, 0, 0 ) );
        node2->attachObject( ent2 );

		Entity *ent3 = mSceneMgr->createEntity( "Robot3", "robot.mesh" );
        SceneNode *node3 = mSceneMgr->getRootSceneNode()->createChildSceneNode( "RobotNode3", Vector3( 0, 50, 0 ) );
        node2->attachObject( ent3 );
    }
};

#if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
#define WIN32_LEAN_AND_MEAN
#include "windows.h"

INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR strCmdLine, INT )
#else
int main(int argc, char **argv)
#endif
{
    // Create application object
    TutorialApplication app;

    try {
        app.go();
    } catch( Exception& e ) {
#if OGRE_PLATFORM == OGRE_PLATFORM_WIN32 
        MessageBox( NULL, e.getFullDescription().c_str(), "An exception has occured!", MB_OK | MB_ICONERROR | MB_TASKMODAL);
#else
        fprintf(stderr, "An exception has occured: %s\n",
                e.getFullDescription().c_str());
#endif
    }

    return 0;
}