I am working on a map editor for my game and I use the arrow keys to scroll around the map area. Currently I'm using the KeyDown event, which works fine for scrolling up, down, left or right - but my question would be how to allow diagonal scrolling. Currently, if I hold the right-arrow and then (whilst keeping the right-arrow held) I then press and hold the down-arrow, the down direction replaces the scrolling to the right instead of scrolling diagonally to the bottom right.

Is there a way, for instance, that I could check whether another arrow key is being pressed whilst in the KeyDown event? How can I respond to more than one key being held?

Thanks