osg::GraphicsContext::WindowingSystemInterface Screen Resolution（屏幕分辨率）

unsigned int width, height;

//获取系统分辨率
　osg::GraphicsContext::WindowingSystemInterface *wsInterface = osg::GraphicsContext::getWindowingSystemInterface();
  if (!wsInterface)
  {
      return;
  }

wsInterface->getScreenResolution(osg::GraphicsContext::ScreenIdentifier(), width, height);
osg::ref_ptr<osg::GraphicsContext::Traits> traits1 = new osg::GraphicsContext::Traits;

traits1->x = ;
traits1->y = ;
traits1->width = width;
traits1->height = height;
traits1->windowDecoration = false;
traits1->doubleBuffer = true;
traits1->sharedContext = ;