First, set up a method that scrolls the window by a tiny amount, then calls itself again after some fixed period of time (eg 100ms) if the mouse is in the region. You can use the method "after" todo this. With this, the canvas will continuously scroll as long as the mouse is in the scroll region.
As you said this works only if mouse is in movement, otherwise the event is not triggered. You can use a timer that is triggered after a timeout and only if the mouse is in the scrolling area. The following is just a pseudo-code which uses a resettable timer I found in ActiveState.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.