title: how to select the particular string from the list in the textview using gtk2.0
body: <p>I have implemented to read and display the image contents from file in textview of GUI application(gtk2.0).
  As a next step, I need to select text of a particular line from the textview and once it is selected it should display the corresponding image of the text.</p>
  
  <p>Can anyone please share the related C code on this.</p>