class_docstr: Provides a canvas to render to, using an FBO.
      
class_docstr_tok: ["Provides","a","canvas","to","render","to",",","using","an","FBO","."]
docstr: Call this within the with-context to obtain the frame buffer contents.
          
docstr_tok: ["Call","this","within","the","with-context","to","obtain","the","frame","buffer","contents","."]
code: def get_frame(self):
      """Call this within the with-context to obtain the frame buffer contents."""
      return self._fbo.read()
  
file_path: vispy/vispy/app/backends/_offscreen_util.py
imports: from ..None import Application, Canvas
  from ...None import gloo
label_desc: Use image node_id 4 for calling the FrameBufferHelper obj's underlying member method code with example usage: obj.get_frame() and returns: self