GNU Radio's DISPLAY Package
Class List
Here are the classes, structs, unions and interfaces with brief descriptions:
 Ngr
  Ndisplay
   Cshow_imageDisplay a grayscaled ( png ) image
   Cshow_image_impl
   Cshow_textCreate a QT Text sink, where the values are received as stream
   Cshow_text_impl
   Ctext_msgCreate a QT Text box widget (QLabel) where the values are posted as a message
   Ctext_msg_impl
 NUi
  CShowPngPicture
 Cshow_text_window
 CShowPngPicture
 CUi_ShowPngPicture