title: How to do simple game console in OpenGL using C#?
body: <p>I need to do simple game console - like from Quake, Counter-Strike or other games for simple 3D game using openGL and C#. 
  Just press button for example ~ and it will show the console.
  I can write my commands in it and it will have effect on my application. 
  For example it will change value of some variable or call some method from my application.
  Console should be in left top corner of the window. It's just window application(no full screen).
  Have somebody any idea how to do it? Piece of code - how to draw the the console or some tutorial?
  Thanks a lot. </p>