Click and Drag Camera

I want to press my right mouse button and move the camera left and right which will move the camera in and out on Z axis and move the mouse Up and Down to move the camera left and right. I cannot seem to get it to work could anyone make me an example of how to do it I am drawing a blank.

psudo code
if Mousedown( 2 )=1
   MoveCamera Camera, 0.0, 0.0, MouseYSpeed()
   MoveCamera Camera, MouseXSpeed, 0.0, 0.0

   'to stop sticking
   MoveMouse graphicswidth()/2, graphicsheight()/2
Endif

Thats the sort of idea, you have to place the cursor in the center of the screen to stop the sticking you will get when it reaches an edge.

yeah I understand that bit it's actually moving the camera relative to the mouse that I am talking about.

oh I see you mean click and dragging on the camera.

You could have a quad in front of the camera which is pickable and do a camerapick then place the camera at the pickedx/y/z

oh thats a brilliant idea never thought of that.