OSG programming of the Hello World 2.0

　　Now add some keyboard events in response to Hello World. // need to add more than two libraries: osgGAd.lib, osgd.lib

code show as below:

#include <osgDB / the ReadFile> 
#include <the osgViewer / Viewer> 
#include <the osgViewer / ViewerEventHandlers> 
#include <osgGA / StateSetManipulator>
 void main () 
{ 
    the osgViewer :: Viewer Viewer; 
    viewer.setSceneData (osgDB :: readNodeFile ( " Glider .osg " ));
     // add state event 
    viewer.addEventHandler ( new new osgGA :: StateSetManipulator (viewer.getCamera () -> getOrCreateStateSet ()));
     // window size change event 
    viewer.addEventHandler ( new new osgViewer :: WindowSizeHandler) ;
     // add some common status settings
    viewer.addEventHandler(new osgViewer::StatsHandler);
    
    viewer.realize();
    viewer.run();
}

　　Then click on the S key frame is displayed, clicking button displays a grid W, F click key to switch between maximizing and minimizing, click on the button will display a light L. (Wherein the lower case letters correspond to keys)

Renderings:

PS：

　　If you find that the program can not respond to keyboard input, do not worry, the program is no problem, the problem may be an input method.

Reproduced in: https: //www.cnblogs.com/gattaca/p/4521796.html