title: Which parameter to pass to glGet for getting current framebuffer in OpenGLES iPhone
body: <p>I know to use glGet to get various parameters. I need to know how to get the current GL_FRAMEBUFFER_OES and get the GLuint type framebuffer id. </p>
  
  <p>I need to use renderToTexture. This will make one of the classes code easier when switching back to normal framebuffer.</p>