Select text drawn with drawstring

I don't know how to word what I want to find to search the web so I must try to explain what I want and hopefully someone will be able to help.

I know how to use drawstring to print text (or graphic object) to the screen. What I don't know is how to make a glyph (or graphic object) selectable, cuttable, pasteable, etc. just like a word processor.

I don't believe that a rtftextbox will suite my needs as all the text and graphics are input through system.drawing.

I need at least a pointer in the direction of where and what to look for. A brief explanation of how this can be done would also be appreciated.